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Lifeboat Engine

Tnecniv Edipar

Well Known and Active Website User
Non-VOC Member
I can't recall seeing an internal arrangement drawing , but , about a year or 2 ago one of these was actually sold on ebay and I saved all the pictures as it was sold in a dismantled condition !! The pix are on another computer though so I will have to dig them out. Wish I'd had the $$$ to buy it , think it fetched about £2-3000.
 

Peter Stokes

Well Known and Active Website User
VOC Member
Most interesting pictures!

It is a good puzzle if you have never seen one before, and the numbers of bits doesn't seem to add up - were there some spares included? Is it an opposed piston (ie two cranks and no heads) two cylinder two stroke?

Look forward to more info.

Pete
 

clevtrev

Well Known and Active Website User
VOC Member
Most interesting pictures!

It is a good puzzle if you have never seen one before, and the numbers of bits doesn't seem to add up - were there some spares included? Is it an opposed piston (ie two cranks and no heads) two cylinder two stroke?

Look forward to more info.

Pete
Short answer ...... yes.
 

Tnecniv Edipar

Well Known and Active Website User
Non-VOC Member
Just found a good description of the working configuration :-

500cc twin cylinder two stroke. 2 four bearing cranks , opposed piston working cylinders , 2 further charging cylinders , so 6 pistons in all !! Centre 2 are the charging cylinders. The port timing was variable by changing the relative angle of the cranks , clever or what ??!! This allowed performance and / or fuel consumption to be optimised as required. Triple pumps , oil , water and bilge. Amal marine carb. Engine was rated at 15 bhp continuous. Reverse gear and electric start were included.

I would so love to have one of these !! How cool would it be to install one into a bike !!
 

Peter Stokes

Well Known and Active Website User
VOC Member
It would make some interesting noises too. I think blown two strokes need a 'free' exhaust for good scavenging.
 

roy the mechanic

Well Known and Active Website User
VOC Member
life boat

Typical Vincent- the answer to several engineering problems that did not really need attention. Whose life was to be saved? The airman or the failing company?
 

Tnecniv Edipar

Well Known and Active Website User
Non-VOC Member
Thats a very harsh view ,weren't Vincent competing for a Ministry tender ? Fuel efficiency and light weight were the principle goals and this was more than achieved.
 

vibrac

Well Known and Active Website User
VOC Member
I saw it running at Heaver on rally it started and we poured buckets and buckets of water in it time passed buckets continues suddenly it started to spray it back out over the crowd great stuff

Don't blame Vincents they had a spec and a contract they for-filled it to the letter - no, did more than was expected
It was the pathetic bureaucrats that again missed the point that the helicopter and long range aircraft were on the scene
I say again because it was probably the same pathetic lot that wanted a target aircraft before good radio control was proven.
Perhaps the only fault was PCV thinking the Ministry in peace time was as reliable and trustworthy as the one in war time that had stood the company in good stead
 

david bowen

Well Known and Active Website User
Non-VOC Member
At the back of Vincent No. 1 factory was the test house this is where the Dyno installed, a Marine engine was put on it in 1947 was started up and not stopped for two weeks the two stroke drone all most sent us the wall, and the smoke from the exhaust blow all over the factory and the school next door ( what would happen these days) the funny side the fuel tank was on top of the test house roof 14 meters high a steel ladder at the side of the building and the guys had to carry a jerry cans of fuel up this every few hours no safety harnesses in those days.
 

david bowen

Well Known and Active Website User
Non-VOC Member
The man that was in charge of this operation was Matt Wright famous left Vincents in 1949 and went to AJS and ran the racing dept there, and two years after that C J (Jack) Williams left Vincents and joined Matt there.
 

Upstreeter

Well Known and Active Website User
VOC Member
Funny old world innit? About three years ago I found a lifeboat engine...and then about six months later a (sort of) Comet. These things never usually happen to me, but you never can tell. They do say that things happen in threes, so the unrestored Lightning or Series 'A' twin is just waiting for me to trip over it...
 

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Upstreeter

Well Known and Active Website User
VOC Member
Yep...well the chap who bought it reckoned six months or so. Surprisingly, it looked pretty oily when I removed the inspection caps and although the tank was missing it was mostly all there...the spokes might need slight attention!
 

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