Thai Long Tails - 13 Mar 2016

Tashi Delek
Mike & Carol Kefford
Wed 30 Mar 2016 08:07

08:04.075N 098:26.739 E

 

One of the major features of life at sea and in the rivers in Thailand is the presence of Long Tails.

“There is much variation among these boats, but the sole defining characteristic is a second-hand car or truck engine.

This engine is invariably mounted on an inboard turret-like pole which can rotate through 180 degrees, allowing steering by thrust.  The propeller is mounted directly on the driveshaft with no additional gearing.  The engine also swivels up and down to provide a "neutral gear" where the propeller does not contact the water. The driveshaft must be extended by several metres of metal rod to properly position the propeller, giving the boat its name and distinct appearance.

Following this basic design pattern allows a variety of engines to be attached to a variety of different kinds of hulls. This flexibility simplifies construction and maintenance while sacrificing efficiency and comfort (noise).

Control is achieved by moving the engine with a lever attached to the inboard side. Ignition and throttle controls provide simple means to control this simple craft. Larger boats may include more than one "tail," with several operators piloting in tandem”.

A typical Long Tail at speed, note just how long the propeller shaft is

and that half of the prop is out of the water.

Long Tails usually have a classic design and a wonderful prow complete with prayer shawl like equivalents

 

Long Tails have a car or truck engine mounted on the long prop shaft which is pivoted on the stern.  The weight of the engine is partly balanced against the weight of long prop shaft.  The engine is cooled by sea water, note the pipes at the stern.  There is no silencer on the engine and the noise is horrendous.

Long Tails have no rudder so manoeuvre by swinging the long prop shaft and the engine!

 

Long Tails can also drive onto the beach and simply lift the propeller shaft clear of the bottom.