Russian Revolutionary Hybrid car

[Doctor Drivel]

This man is a knob.

[Doctor Drivel]

[Doctor Drivel]

All rather late in WW2, when we needed proper engines in the early part. The Crusader with an excellent engines would have slaughtered the Germans in the desert, especially after the 6pdr gun was fitted.

[Doctor Drivel]

Yes. Look it up.

< snip drivel >

[Doctor Drivel]

Years of Cold War propaganda is still lodged in their kinds. Sad isn't it.

[Terry Fields]

Only when it makes its first successful delivery.

Terry Fields

[Nightjar]

...

It was faster than its opponents with the Liberty engine. Having a Meteor engine would not have overcome the problems with the gearbox and would have made the engine cooling problems worse. What it really lacked was armour and hitting power. The best thing that could be said for the

6pdr was that it was better than the 2pdr, but by the time that was on the scene in any quantity, so was the Lee Grant, with its much better gun.

Colin Bignell

[Terry Fields]

Apologies...I see it already has done so!

Terry Fields

[David]

As far as I know it was standard. Cannot re-do the test as I do not have manual gearboxes now.

I believe that there is a different solution....

When the power and torque curves are plotted against rpm, on the same graph, then the engine is giving it's best output when the 'area under the curves' is at the maximum for a given rpm. Therefore, between the peaks has the greatest area under the curve.

I will see if the petrol car we have now has 'lock up' of the torque converter in 2nd or 3rd 'gear' and try again sometime soon.

The trouble with higher gears is that the aerodynamic drag will skew the true output figures.

Ideally, maybe a rolling road test would show where the steepest part of the acceleration graph (delta rpm / delta time) (rpm against time) identifies best acceleration.

David

[David]

Manufacturer figures for that car. Note I said around 4,000 rpm, from memory. Of course I may be wrong.

David

[Huge]

You mean other than the two it's already made?

[Jules Richardson]

Well, by that metric, you are a brace of knobs.

[Jules Richardson]

As a child, a friend and I had a short-lived venture spray-painting rocks with gold paint and selling the resulting solid gold nuggets to kids who would eventually grow up to be Drivel.

[John Rumm]

He has still got his pet rock.... stops his pipes scaling up ;-)

[The Natural Philosopher]

I thought he smoked all his rocks

[Dave Plowman (News)]

'Fraid not. BHP is no magical output. It is simply a product of torque and revs. Revs on their own have absolutely no meaning as regards rate of change of speed - it's all down to the torque.

[hugh]

In message , "Dave Plowman (News)" writes

It was Land Rover 200TDi

[Andy Champ]

Tell you what Dave, lets try the simple approach.

Get a friend and a stopwatch, and do some acceleration runs keeping the engine revs as close as possible to peak torque.

Then try again, keeping them as close as possible to peak power.

Andy

[Andy Champ]

do you think as he does that maximum acceleration through the gears is attained by keeping the engine at peak torque?

Andy

[Andy Champ]

QE2 did about 100 gallons per mile, with about 1700 passengers. I make that 17 passenger miles per gallon. Significantly worse than the 'plane.

Andy