Towing is coupling two or more objects together so that they may be pulled by a designated power source or sources. The towing source may be a motorized land vehicle, vessel, animal, or human, the load anything that can be pulled. These may be joined by a chain, rope, bar, hitch, three-point, fifth wheel, coupling, drawbar, integrated platform, or other means of keeping the objects together while in motion.
Towing may be as simple as a tractor pulling a tree stump. The most familiar form is the transport of disabled or otherwise indisposed vehicles by a tow truck or "wrecker." Other familiar forms are the tractor-trailer combination, and cargo or leisure vehicles coupled via ball or pintle and gudgeon trailer-hitches to smaller trucks and cars. In the opposite extreme are extremely heavy duty tank recovery vehicles, and enormous ballast tractors involved in heavy hauling towing loads stretching into the millions of pounds.
Necessarily, government and industry standards have been developed for carriers, lighting, and coupling to ensure safety and interoperability of towing equipment.
Historically, barges were hauled along rivers or canals using tow ropes drawn by men or draught animals walking along towpaths on the banks. Later came chain boats. Today, tug boats are used to maneuver larger vessels and barges. Over thousands of years the maritime industry has refined towing to a science.
Aircraft tow one-another as well. Troop and cargo carrying gliders are towed behind powered aircraft, which remains a popular means of getting modern leisure gliders aloft.
This section refers to the towing of a cargo-carrying device behind a truck or car.
Most trailers fit into one of three categories:
There are many safety considerations to properly towing a caravan or trailer / travel trailer starting with vehicle towing capacity and ranging through equalizer hitches to properly and legally connecting the safety chains.
According to the United States National Highway Traffic Safety Association, more than 65,000 crashes involving passenger vehicles towing trailers occurred in 2004 in the US, jumping nearly 20 percent from the previous year.
In 2006, Master Lock did their annual study on towing safety to see how many Americans tow their cargo correctly. The study, Towing Troubles included responses from trailer owners across the country and found that while the majority of trailer owners believe they know what they’re doing when it comes to towing, most were lacking the proper education. Master Lock reported that 70 percent of trailer owners did not fully know the correct way to tow their cargo.
An important factor in towing safety is tongue weight, the weight with which the trailer presses down on the tow vehicle's hitch. Insufficient tongue weight can cause the trailer to sway back and forth when towed. Too much tongue weight can cause problems with the tow vehicle.
Of the many cars fitted with towbars, most are likely to have fitted towing electrics which are ‘hidden’ from the car. This electrical installation is commonly called ‘By-pass electrics’. This system is used to protect the car's lighting systems from potential damage if wiring in a trailer should malfunction. It is a tried and tested system in very wide use. Bypass systems are found both in "universal" (non-vehicle-specific) systems and in dedicated and OEM systems.
Since the early 2000s, vehicle technology has moved forward introducing CANbus network systems which allowed the interaction of different systems, and also the detection of a trailer or caravan. In some cases, the manufacturers have not only designed automobiles to sense the presence of a trailer, but they have also created enhanced new features within the systems connected to the network. This actually makes it important that these particular vehicles can "see" the trailer or caravan. A few of these new features are for safety and stability, but most are merely convenience things like automatically switching off the rear fog light and parking sensors. The main new safety feature, appearing now on some cars, is the Trailer Stability Program which automatically turns on when a trailer detected in the network through the dedicated sensors.
Some of the advanced systems being introduced in certain vehicles, that may make use of detecting the presence of a trailer are: lane change assistant, brake electronics, adaptive cruise control, suspension system (ASS), engine electronics, engine cooling system, parking aids, and reversing camera.
TSP or Trailer Stability Program is one feature which has been added to some vehicles, to help correct the ‘snaking’ action of a trailer. With such advanced technology, some braking systems have even evolved further by being operated electronically, without the need for hydraulics. Braking can become more controlled with faster braking efficiency when towing. Some suspension systems can now detect a trailer and allow for a more level towing adjustment when the load is applied on the towing hitch. ACC (Adaptive Cruise Control) systems are meant to ‘detect’ a trailer in order to create a greater braking distance between vehicles. It might be considered unwise to bypass such vehicles' trailer detection systems as these vehicles may be designed to behave in a different way when a trailer is attached.
Some manufacturers either put a prepared connector in the vehicle which is a preparation on the network (Ford, Volvo) to accept a specially designed towing module, or have designed the trailer to be ‘detected’ through connections directly onto the databus (VAG, BMW). With such connections the vehicle will know when a trailer plug is connected to the socket.
On vehicles that do not have safety features that depend on the vehicle sensing the presence of a trailer, bypass systems, properly installed by expert fitters, are very efficient and cost effective alternatives to expensive OEM and other dedicated kits. All bypass kits will be type approved for use on vehicles (check for the (e) mark). They have the built-in advantage of completely isolating the trailer from the vehicle's lighting system, thus protecting against damage to the car caused by any failure within the trailer's wiring. However, a number of manufacturers do not recommend connections to be made on the lighting harnesses.
This system is used to protect the car's lighting systems from potential damage if wiring in a trailer should malfunction. It is a tried and tested system in very wide use. Bypass systems are found both in "universal" (non vehicle-dedicated) systems and in dedicated and OEM systems. It works by taking a small current signal from the vehicle's lighting harness to trigger a relay and send a direct power supply to the towing socket. It does not communicate with the vehicle and will not activate any safety or convenience systems. It has the built-in advantage of isolating the trailer wiring from that of the towing vehicle and thus preventing overloading the vehicle's own lighting harness which may be minimal gauge cabling. The connection onto this harness will cause damage if solder or crimp connectors are used! However, by-pass systems should protect the car's electrical modules from damage should the wiring in a towed trailer malfunction. It is not advised for use in cars that depend on sensing the presence of a trailer to activate towing-related safety features within the car.(See Trailer Stability Programme). In addition to this, there are a number of vehicle manufacturers that do not recommend or actually ban any connections to be made from the vehicle lighting harness.
12N is the designation for the older 7-pin lighting socket conforming to ISO 1724, used when towing just a trailer or caravan (without the need for charge or fridge functions). In the UK it has all the functions of the rear lights on a vehicle except for reverse. These sockets are not waterproof and suffer from "pin burn-out" when worn.
12S is an additional 7-pin socket conforming to ISO 3732, mainly used when towing caravans. It consists of a permanent 12v power supply, and usually a switched 12v power supply for the fridge (UK). It also contains a feed for the reverse lights on the caravan.
ISO 11446 is the new 13-pin standard socket being fitted for all new U.K. caravans and trailers sold from 2009 onwards. It can be wired with the same functions as both the 12N and 12S sockets, or with just the lighting functions including reverse (required on all trailers and caravans from October 2012). The socket has been designed to be waterproof, easy to fit/remove (twist operation), the same size as one 12N socket (ideal for detachable towbars as unobtrusive), and with good fitting quality terminals that avoid any pin burnout or voltage failure.
Another advance in trailer safety is the development of the Trailer Stability Program, built into some Electronic Stability Control systems in today's motor vehicles. These systems can detect the "snaking" of a trailer or caravan and counteract it by braking individual wheels, reducing engine torque and slowing the vehicle down. It is important to note that activation of TSP normally requires a vehicle-specific wiring loom to be installed.
Towing capacity is a measure describing the upper limit to the weight of a trailer a vehicle can tow and may be expressed in pounds or kilograms. Some countries require that signs indicating the maximum trailer weight (and in some cases, length) be posted on trucks and buses close to the coupling device. Towing capacity may be lower as declared due to limitation imposed by the cooling system.
For cars and light trucks, towing is accomplished via a trailer hitch. In addition to the vehicle limits, the hitch assembly may have its own set of limits, including tongue weight (the amount of weight that presses downward on the hitch) and trailer weight (the full weight of the trailer, including contents). When the hitch is a factory option, the hitch capacity is usually stated in the vehicle documentation as a towing specification, and not otherwise marked on the vehicle.
Towing capacity may either refer to braked or unbraked towing capacity.
Towing capacity may either refer to braked or unbraked towing capacity.
Braked towing capacity is the towing capacity of a vehicle if the trailer being towed has its own braking system, typically connected to the vehicle's braking system via the trailer cable. Braked towing capacity is typically significantly greater than unbraked towing capacity.
Unbraked towing capacity is the towing capacity of a vehicle towing a trailer that does not have its own braking system.
The tow-ball is popular for lighter loads, readily allowing swivelling and articulation of a trailer. A tow pin and jaw with a trailer loop are often used for large or agricultural vehicles where slack in the pivot pin allows the same movements. A pintle and lunette is a very heavy duty hitching combination used in construction and the military.
In the case of towing hitches designed to carry other vehicles, there are more specialized types, described immediately below.
Towing of cars and trucks is a unique form, with an industry dedicated to it. Specialized "tow truck" vehicle types are most often used. Some of these are flatbed, with hydraulic tilting beds and winches and dollies to position the car behind the bed and pull it up onto the bed (flatbed towing). Others have a specialized boom hitch instead of a flatbed, which will lift one end of the car and allow it to ride on its remaining tires; they otherwise have similar equipment to the flatbeds and position and perform much like them (two wheel dolly towing). In other cases, a specialized vehicle dolly can be attached to a standard vehicle hitch; for example, some moving vehicle rental companies, such as U-Haul, will rent these dollies for one-way transport of cars (flat tow bar towing).
Hitch tow trucks are mostly sized for cars and light duty trucks. Larger versions, with a long, weighted body and heavier duty engines, transmissions, and tow hooks, may be used for towing of disabled buses, truck tractors, or large trucks. The artificial sizing and weighting must be designed to withstand the greater weight of the towed vehicle, which might otherwise tip the tow truck back.
When many cars are to be transported, rather than using a specialized vehicle, a specialized trailer may be used instead, attached to a standard tractor truck or other large vehicle. These сar carrier trailers (also known as auto hauling trailers) often bring cars from factories to dealers. They typically have two levels that each hold 3-5 cars, ramps for moving the cars from ground to either level, and hook/chain ties and mounts to secure the cars for transport. Their beds, on each level, may have channels or tracks to guide loading and further maintain transport stability.
Vehicle towing may be performed for the following reasons:
Requests for service are placed to a dispatching center. Some tow services communicate with drivers using wireless telephone equipment. In others, the dispatching center contacts an available tow truck driver via mobile radio or by sending a text message using a mobile data terminal. Recent technology includes the use of GPS and on board wireless equipment to dispatch drivers via an LCD screen receiver.
Some smaller towing companies, especially single-truck owner-operator outfits, may have only a single telephone and answering device for their "dispatch center." Increasingly, this will just be a mobile phone for the operator on duty, or may be the main telephone number for an associated mechanic, who will then send the truck from the shop or call the operator's mobile phone.
Dispatching networks exist for geographic automobile clubs, such as the British Royal Automobile Club, the American Automobile Association, and the Canadian Automobile Association. These organization primarily contract with many local tow truck operators (though they do have fleets of their own in some areas). The clubs will re-dispatch the requests from the club dispatch center to the local operators dispatch line, which, as above, may be a true dispatch center for larger tow fleets, or a simple business telephone line or mobile line for smaller operators. The club dispatch center will typically handle any follow-up needed on behalf of the customer, so that they do not need to track the multiple levels of dispatching.
Many tow companies can store vehicles that have been wrecked or impounded by police agencies. In these circumstances, police agencies notify a contracted towing provider to secure the vehicle and tow it to a storage lot. The tow company will sometimes prevent access to the vehicle until the law states the owner can claim it (usually after any fines are paid). Some local governments operate their own towing and impound lots, and don't need a contracted provider.
Nearly all tow companies charge a fee for storing vehicles.
Navigation systems are becoming more commonly used to tell the location (of stranded vehicles) to tow trucks. Automatic vehicle location (AVL) systems are sometimes used to help the dispatch center staff determine the closest tow truck. AVL may use GPS technology. It may display the location of all tow trucks on a map or may feed data directly to a computer-assisted dispatch system which automatically recommends the closest available units.
This section refers specifically to the laws of various countries regarding the towing of a car or truck by a specialty wrecker or tow truck.
The towing industry is known to have substantial potential for abuse, as towing most often occurs in difficult situations, without many options for the consumer to turn to. In addition, in certain situations, towing operators may initiate a towing procedure that is unwarranted, and the consumer may be forced to make a payment to the operator before the vehicle is released. Various consumer citizen protection laws have been enacted by many jurisdictions to protect the consumer for predatory towing or predatory towing charges.
Other laws may govern training and licensing of tow truck operators and businesses, safety equipment, safe practices, and special permits for operating on certain roadways or in certain areas.
In the United States, several states have laws that regulate the circumstances under which a car may be towed. Some of these laws are designed to prevent "predatory towing" whereby a legally parked vehicle is towed — or an illegally parked vehicle is towed by a towing operator unaffiliated with the parking facility (private or public) — in order to charge high fees from the owner. Even when the predatory tow is stopped, if the vehicle is already hooked up to the tow truck in any fashion, the car is essentially disabled until the operator releases it, and the operator can therefore extort money from the consumer.
Even where towing is performed legally, and even with the consumer's request for a tow, the towing company gains physical possession of the vehicle. The towing fees may be unexpectedly high in the absence of regulation.
In some jurisdictions, kidnapping laws may ban the towing of occupied vehicles. The majority of states require additional mirrors for the vehicles, that tow something behind them. The requirements and regulations differ from state to state. In general, towing mirrors are an addition to the factory vehicle mirrors, that allow seeing farther. The standard mirrors are crafted to reflect what is behind the vehicle, and when a trailer is towed, they reflect the trailer. To see what’s behind it, one needs bigger mirrors that span the coverage of what’s behind the trailer. There are three main types of the towing mirror:
California law requires the tow company to immediately and unconditionally release a vehicle if the driver arrives prior to it being towed from the private property and in transit. The intent was to avoid the likelihood of dangerous and violent confrontation and physical injury to vehicle owners and towing operators, the stranding of vehicle owners and their passengers at a dangerous time and location, and impeding expedited vehicle recovery, without wasting law enforcement’s limited resources.
Massachusetts regulations sets the maximum towing charge for non-commercial vehicles at $108 in addition to $35 for every day the vehicle is held in storage. Vehicles may only be towed from private property with the vehicle owner's permission or if the property owner provides in writing to the local police the address to which the vehicle will be towed.
Some limited access highways, especially the Garden State Parkway and the New Jersey Turnpike, require specially designated towing businesses to be the only tow operators on them. This is to allow for better traffic flow and safety, as not all tow operators are familiar with the roads, access points and turnaround points, road construction quirks, and methods to quickly and safely remove disabled cars from the roadway. There is also the concern of arrival delay; the roadway authorities wish to avoid out of area tow companies, as the delay for arriving from far away increases the length of traffic delays in time and distance.
Oregon law requires that the tower release a vehicle at no charge only if the driver is present prior to the hookup being complete. The tower must also take at least one photograph of the vehicle and record the time and date of the photograph. The photograph must show the vehicle violation taking place.
Virginia and its municipalities have enacted anti-"predatory towing" legislation. Some features of the legislation include the requirement to post warning signs at all entrances, setting maximum fees for towing and storage, and requiring photographs to be taken before towing to show the condition of the vehicle as well as the lawfulness of the towing.
All Australian States have laws which regulate the towing industry, particularly that part of the industry engaged in towing light and heavy vehicles involved in road accidents.
The Tow Truck Regulation 2009 is the legislation in State of Queensland which governs smash/accident towing; in regulated areas of the state. The scheme sets economic, occupational and general consumer protection controls over the accident towing industry.
In April 2013, the Queensland Government approved amendments to the Police Powers and Responsibilities Act 2000, regarding motor vehicle impoundment with the aim of improving road safety.
On November 1, 2013, State of Queensland the amended legislation commenced as the countries toughest anti-hooning laws.
From May 1, 2014, Australian towing company Tow.com.au was contracted by the Queensland Police Service as the exclusive provider of towing & impoundment relating to hoon type 1 & type 2 offences in State of Queensland.
The Accident Towing Services Act is the prime towing industry statute in the State of Victoria. The scheme sets economic, occupational and general consumer protection controls over the accident towing industry. First, the statute restricts the number of accident towing vehicles across the State and also contains a scheme regulating the orderly allocation of tow trucks to road accident sites. Second, the Act sets minimum standards on the character of industry participants and also regulates the behaviour of participants once they enter the industry.
The framework of offences in the Act broadly seeks to give practical effect to the "chain of responsibility" concept in the accident towing sector. The concept seeks to identify the industry parties who are in a sufficient position of control over risks, in this case potentially unsafe and unethical conduct following road accidents, and to allocate responsibility through law accordingly in order to deter and punish those behaviours.
The behavioural controls in the Act cover a wide range of activities and practices including the allocation of tow trucks to accident sites in "controlled areas" and conduct at road accident sites and during post accident repair work. The scheme was broadly prompted by consumer protection sentiment, in particular, the recognition of the vulnerability of road accident victims. Care was evident during development of the scheme to maintain and enhance existing character standards in the sector due to past behavioural issues in Victoria including the infiltration of criminal elements into some areas and conflict at accident scenes.
As of the 1st of August 1998 all Passenger Carrying Vehicles up to 3500 kg Gross Vehicle Weight (M1 Vehicles) can only be fitted with European Type Approved towbars if the vehicle has received European Whole Vehicle Type Approval. Non M1 vehicles, Light Commercial Vehicles and private imports from outside the EEC are not required to use Approved Towbars.
Anchor Handling Tug Supply (AHTS) vessels are mainly built to handle anchors for oil rigs, tow them to location, and use them to secure the rigs in place. AHTS vessels sometimes also serve as Emergency Response and Rescue Vessels (ERRVs) and as supply transports.
Many of these vessels are designed to meet the harsh conditions of the North Sea, and can undertake supply duties there between land bases and drilling sites. They also provide towing assistance during tanker loading, deepwater anchor handling, and towing of threatening objects.
AHTS vessels differ from Platform supply vessels (PSVs) in being fitted with winches for towing and anchor handling, having an open stern to allow the decking of anchors, and having more power to increase the bollard pull. The machinery is specifically designed for anchor handling operations. They also have arrangements for quick anchor release, which is operable from the bridge or other normally manned location in direct communication with the bridge. The reference load used in the design and testing of the towing winch is twice the static bollard pull.
Even if AHTS-vessels are customized for anchor-handling and towing, they can also undertake, for example, ROV (remotely operated underwater vehicle) services, safety/rescue services, and supply duties between mainland and offshore installations.Chevrolet Silverado
The Chevrolet Silverado, and its mechanically identical cousin the GMC Sierra, are a series of full-size and heavy-duty pickup trucks manufactured by General Motors and introduced in 1998 as the successor to the long-running Chevrolet C/K line. The Silverado name was taken from a trim level previously used on its predecessor, the Chevrolet C/K pickup truck from 1975 through 1998. General Motors continues to offer a GMC-badged variant of the Chevrolet full-size pickup under the GMC Sierra name, first used in 1987 for its variant of the GMT400 platform trucks.
The heavy-duty trucks are informally referred to as "Silverado HD" (and Sierra HD), while the light-duty version is referred simply to as "Silverado" (and Sierra). Perennially one of the best-selling vehicles in the United States, almost 12 million Silverados have been sold since its introduction.Emergency tow vessel
An emergency tow vessel, also called emergency towing vessel, (ETV) is a multi purpose boat used by state authorities to tow disabled vessels on high seas in order to prevent dangers to man and environment. The disabled vessel is either towed to a safe haven or kept in place against wind and current until commercial assistance by tug boats has arrived on site or until it has been repaired to the extent of being able to manoeuvre on its own. The need for ETVs as a preventive measure has arisen since the number of available commercial salvage tugs was reduced while potential dangers from individual vessels have increased. E.g. Spain has fourteen, Turkey has eleven, Germany operates eight, Norway has seven, France has five, Sweden three and the Netherlands, Poland, South Africa, Iceland and Finland each have one official emergency tug boat. Australia also operates emergency response vessels. The United Kingdom's four strong ETV fleet was to be disbanded in September 2011 due to budget cuts but the two vessels operating in Scottish waters received an extension of contract until the end of 2011.Fishing trawler
A fishing trawler is a commercial fishing vessel designed to operate fishing trawls. Trawling is a method of fishing that involves actively dragging or pulling a trawl through the water behind one or more trawlers. Trawls are fishing nets that are pulled along the bottom of the sea or in midwater at a specified depth. A trawler may also operate two or more trawl nets simultaneously (double-rig and multi-rig).
There are many variants of trawling gear. They vary according to local traditions, bottom conditions, and how large and powerful the trawling boats are. A trawling boat can be a small open boat with only 30 horsepower or a large factory ship with 10,000 horsepower. Trawl variants include beam trawls, large-opening midwater trawls, and large bottom trawls, such as "rock hoppers" that are rigged with heavy rubber wheels that let the net crawl over rocky bottom.Ford Expedition
The Ford Expedition is a Full-size SUV manufactured by Ford. Introduced for the 1997 model year as the successor of the Ford Bronco, the Expedition was the first full-size Ford SUV sold with a four-door body. For its entire production life, the Ford Expedition has been derived from the corresponding generation of the Ford F-150 in production, sharing some body and mechanical components. The fourth-generation Ford Expedition began production for the 2018 model year. Similar to the configuration of the Chevrolet Tahoe and Suburban, the Ford Expedition is sold in regular and extended lengths (the Ford Expedition EL/Max); sold since 2007, the latter functionally serves as the replacement for the Ford Excursion.
Since 1997, the Lincoln division has marketed the Ford Expedition as the Lincoln Navigator, the first full-size SUV sold by a luxury auto brand in North America (the Expedition was never sold as a Mercury). The third Ford vehicle to use the Expedition nameplate, the full-size SUV follows a 1992 F-150 Eddie Bauer concept vehicle and a 1995 trim level package on the two-door Ford Explorer Sport.
Prior to 2009, the Ford Expedition was assembled at the Michigan Assembly Plant in Wayne, Michigan (previously home to the Ford Bronco)., After 2009, the Ford Expedition was moved to the Kentucky Truck Plant in Louisville, Kentucky.Highway Thru Hell
Highway Thru Hell is a Canadian documentary TV series that follows the operations of Jamie Davis Motor Trucking, a heavy vehicle rescue and recovery towing company based in Hope, British Columbia. Quiring Towing, Aggressive Towing, Mission Towing and Reliable Towing are also big players in the series. The show focuses on the hardships of operating along the highways of the BC Interior, especially the Coquihalla Highway (Coq).ISO 11992
ISO 11992 is a CAN based vehicle bus standard by the heavy duty truck industry. It is used for communication between the tractor and one or more trailers. Its full title is "Road vehicles -- Interchange of digital information on electrical connections between towing and towed vehicles".
The protocol structure is similar to SAE J1939. The main differences are timing, bus voltage level and the structure of the message's 29-bit identifier.Lick Life
Lick Life (also known simply as Lizard Lick and previously known as Lizard Lick Towing) is an American reality television show that originated as a spin-off of the series All Worked Up and ran for four seasons on truTV from February 7, 2011, to August 18, 2014. The show follows Ron and Amy Shirley, Bobby Brantley, and their team of repossession actors in the Raleigh suburb of Wendell, North Carolina, the town that has jurisdiction over the Lizard Lick unincorporated area. The show is known for staged fights and scripted brawls that take place during the carefully choreographed repossessions of vehicles.It was announced in 2017 that Ronnie Shirley had been approached by UK channel Dave to make a TV series based on Lizard Lick Towing for the UK. The series, called Ronnie's Redneck Road Trip, will begin airing in the UK April 14, 2017.
It was announced on May 4, 2017 via Lizard Lick Towing Facebook page that a reboot of Lizard Lick Towing is in production as of May 2017. The new series will be titled Lick Life, an air date is yet to be confirmed. The reboot series will follow the same format but will also add new parts to the show as well. Monty Hobbs has signed on to produce Lick Life as well as guest star. Lick Life will be 6 episodes focusing on the Shirleys' lives with Hobbs brainstorming their creative adventures.List of Royal Air Force aircraft independent flights
This is a list of Royal Air Force independent Flights. An independent Flight is a military administrative structure which is used to command flying units where the number of aircraft is not large enough to warrant a fully fledged squadron.No. 30 Squadron RAAF
No. 30 (City of Sale) Squadron is a squadron of the Royal Australian Air Force (RAAF). Raised in 1942 as a long-range fighter unit, the squadron saw action in the Second World War, serving in the South West Pacific Area against the Japanese and operating mainly in the ground attack and anti-shipping roles from bases in New Guinea and the Netherlands East Indies. After the war, the squadron was disbanded, however, it was re-raised a short time later as a unit of the part-time Citizen Air Force, operating in the target towing and air defence role in New South Wales. In 1960s the squadron ceased flying aircraft and operated surface-to-air missiles, providing for the defence of Sydney and Darwin before disbanding in 1968. The squadron was re-raised again in 2010 and since then it has served as an airbase support squadron located at RAAF Base East Sale.Pair trawling
Pair trawling is a fishing activity carried out by two boats, with one towing each warp (the towing cables). As the mouth of the net is kept open by the lateral pull of the individual vessels, otter boards are not required. With the towing power of two boats and no otter boards, a larger net may be worked than would otherwise be possible, or alternatively, the two boats can share increased fuel efficiency.
As doors are not necessary, the gear arrangements are simplified, with the warps attaching directly to the wings of the net. Setting and hauling of the nets are carried out by one boat, while the other is only used for towing; usually each will take turns at these operations.
Pair trawling is effective on all demersal species. In shallow waters, where the noise from a single vessel may scatter fish, two vessels operating a distance apart tend to herd fish into the path of the net. Catch per vessel often considerably exceeds that attainable through standard bottom trawling. Pair trawlers targeting cod off the coast of New England have reported average per vessel catches of three to six times that from single trawls.Because of the increased efficiency of pair trawling, vessels are able to tow their gears in mid-water at a faster speed to target species which are normally able to escape trawl nets, such as the European seabass. This has caused some controversy, due to the high level of marine mammal bycatch associated, leading to the British government introducing a ban on pair trawling for bass in UK territorial waters.ST Cervia
ST Cervia was built in 1946 as a seagoing tug for use as a fleet auxiliary by Alexandra Hall & Company Ltd of Aberdeen, Scotland. Today she is a floating Museum still undergoing restoration in Ramsgate, Kent.South Beach Tow
South Beach Tow is an American television series that portrayed dramatized reenactments of the day-to-day business of Tremont Towing, a family run towing business in Miami Beach, and South Beach Towing, a towing company in Gladeview created by the workers of Tremont in Season 4. It was produced by Bodega Pictures and Nuyorican Productions, and it aired on the American cable channel truTV, the show ran for 4 seasons from July 20, 2011 to December 10, 2014. The final episode titled "Checkmate" aired on December 3, 2014, which ended the story. A week later, a bonus episode ("Bernice's Top 20") aired on December 10, concluding the series with a total of 87 episodes. Although the program is fictionalized, Tremont Towing and South Beach Towing are real towing companies in Miami Beach and Gladeview.Target tug
A target tug is an aircraft which tows an unmanned drone, a fabric drogue or other kind of target, for the purposes of gun or missile target practice. Target tugs are often conversions of transport and utility aircraft, as well as obsolescent combat types. Some, such as the Miles Martinet, were specially designed for the role. It was, and is, a relatively hazardous job, as live fire is typically employed and the people doing the shooting are usually still in training.Tow hitch
A tow hitch (or tow bar) is a device attached to the chassis of a vehicle for towing, or a towbar to an aircraft nose gear. It can take the form of a tow ball to allow swiveling and articulation of a trailer, or a tow pin, or a tow hook with a trailer loop, often used for large or agricultural vehicles where slack in the pivot pin allows similar movements. Another category is the towing pintle used on military vehicles worldwide.Tow truck
A tow truck (also called a wrecker, a breakdown truck, recovery vehicle or a breakdown lorry) is a truck used to move disabled, improperly parked, impounded, or otherwise indisposed motor vehicles. This may involve recovering a vehicle damaged in an accident, returning one to a drivable surface in a mishap or inclement weather, or towing or transporting one via flatbed to a repair shop or other location.
A tow truck is distinct from a motor carrier that moves multiple new or used vehicles simultaneously in routine transport operations.Towboard
A towboard is a piece of aquatic survey equipment consisting of a board attached to a rope that is towed by a surface vessel. It is used to tow one or more divers underwater at a constant depth to survey bottom features such as coral reefs. The diver may use a scuba set, or if only a snorkel, may remain at the surface, or travel underwater for around two minutes.
The towing vessel travels at approximately 1 to 2 miles per hour and may tow two divers, one with a camera pointing down, and other with a camera facing forward. The boat follows a depth contour to keep the towboard over a specific depth. The divers can also maneuver the board to maintain a more precise depth and avoid obstacles. A survey may cover up to nearly 2 miles over a period of around 50 minutes.
This type of surveying method is called a towboard survey, towed-diver survey, and the manta tow technique, the latter named after the Manta Board, an oval towboard marketed for recreational use. A variant is the SAM or "Single-armed Manta-board". This consists of a small board with a strap to secure and tow the diver by the forearm. This frees the other arm, allowing the diver to take notes on a pad held by the towing arm.The use of a towboard is considered safe for NOAA reef surveys by trained divers at depths where no decompression stops are required (down to approximately 90 feet).Towboards may be equipped with sensors to record the temperature and depth every few seconds and the tow vessel may have a GPS to record position. Position of the diver is approximate and must be calculated from the boat position, heading and towline length.Towpath
A towpath is a road or trail on the bank of a river, canal, or other inland waterway. The purpose of a towpath is to allow a land vehicle, beasts of burden, or a team of human pullers to tow a boat, often a barge. This mode of transport was common where sailing was impractical due to tunnels and bridges, unfavourable winds, or the narrowness of the channel.
After the Industrial Revolution, towing became obsolete when engines were fitted on boats and when railway transportation superseded the slow towing method. Since then, many of these towpaths have been converted to multi-use trails. They are still named towpaths — although they are now only occasionally used for the purpose of towing boats.Trailer (vehicle)
A trailer is an unpowered vehicle towed by a powered vehicle. It is commonly used for the transport of goods and materials.
Sometimes recreational vehicles, travel trailers, or mobile homes with limited living facilities where people can camp or stay have been referred to as trailers. In earlier days, many such vehicles were towable trailers.