What are people buying?

[Etranger]

Didn't the first Me109 fly with a Rolls Royce engine?

RR Kestrel IIRC.

[grizzlymc]

I think so. Didn't that use evaporative cooling?

[Buff Orpington]

Not sure, but the 2 junkers were designed with it in mind.

Also remember the Gladiator and the Hurricane were both adopted as stopgap improvements until enough of the Interceptor they wanted were available. The first to give the raf a high altitude interceptor, the second to share some parts with the Fury it was replacing and give them an all round monoplane fighter.

Indeed, one of the main attractions of the Hurricane was that it took about 5000 less manhours to build, the simpler construction techniques made it easier to contract out as well.

[Etranger]

I think so. Didn't that use evaporative cooling?

Cooling system[edit]
One key advance in the Kestrel was the use of a pressurised cooling system. Water boils at 100 °C at standard atmospheric pressure, but this temperature decreases with altitude. Since the amount of heat carried out of the engine is a function of coolant temperature and volume, the coolant has to be kept below boiling point and an increasing amount of fluid has to be used, along with an increasingly large radiator to cool it. The solution was to pressurise the entire cooling system, thereby not only preventing the decrease in cooling performance with altitude, but in fact increasing the boiling point even on the ground. The Kestrel was built to maintain enough pressure to keep the boiling point at about 150 °C.[5]

https://en.wikipedia.org/wiki/Rolls-Royce_Kestrel WIki FWIW.

[grizzlymc]

So, not evaporative, but high pressure.

[Purple]

Spears.
Bases.
How very boring.

[levied troop]

But necessary.

Today I am buying a sofa. It’s the first time I’ve ever bought one. But I’ve bought bases and spears quite often.

[Purple]

What scale?

[grizzlymc]

I've never painted a sofa.

[Etranger]

I've never painted a sofa.

I have, with Humbrol Oxford Blue....