When did "Reheat" become "Afterburner" ?

[Null Orifice]

Re #73
Anybody know if the man with the extinguisher still has a 'ringing' sound in his ears? 'Elf'n'safety, etc.

By the way, undercarriage down and locked is impossible to determine from the cockpit/flight deck! Even though there may be three greens indicated.

[H Peacock]

Confusing one for me Is LIGHT OFF call during engine start. Especially when during the start you are also monitoring warning lights that you also expect to go OFF.

Glad you brought that one up. I spent 10 years reading Bombardier documentation that refers to 'Light Off' during the start sequence. Now I'll reluctantly go along with 'Touch & Go' when doing Rollers, but I ain't ever going to teach an RAF student to use the term 'Light Off' when he starts a jet engine! (or is that now called a gas turbine!?)

[SASless]

We are, indeed, two nations divided by a
common language ....

That and a whole lot of salt water thank goodness!

[Blacksheep]

Originally Posted by hoss183

The term was changed after confusion caused by crew meals being prepared in the Vulcan's microwave oven. Ok i'll get my hat & coat....

Ah! You must mean the "Ration Heaters"? I remember finding a turd in one of them during an After-Flight inspection. That's about all they were fit for I reckon.

[SASless]

Could one utilize the Microwave Oven when operating "EMCON"....would hate for the Nav to give away the aircraft's position by heating up some Pies?

[dook]

…..a certain Lightning formation leader called "Reheat, Reheat, Go.....Now", which caused a stir among his formation members...…

That would be 'Spike' Newman then.

[LTCTerry]

Why do the Americans call the ground floor the 1st floor.

Uh, because it is?

The Germans say "ground floor" and "first upper floor."

[ShyTorque]

Originally Posted by LTCTerry

Uh, because it is?

The Germans say "ground floor" and "first upper floor."

They also say "halb sieben" (half seven) - but actually mean 06:30. Don't be late for briefing!

[weemonkey]

Originally Posted by Saintsman

Man vs Fire.

That man is wearing no safety equipment!

What was he thinking...

I think he's also looking in the wrong direction.

But hey Ho..

[PDR1]

Originally Posted by megan

The following is what Ed Schmued had to say re the radiator design

Thanks for that, Megan - an interesting piece. I would only take issue with one part (which I'm sure was an unintended "mispeaking" at the time because Ed Schmued definitely know what he was talking about!), where he says:

The distribution of power is approximately as follows: 100 percent energy in fuel is put into the engine, but about 30 percent of this has to be radiated into the air to cool the engine. Another 30 percent of the energy is lost in the exhaust heat of the engine. Then 25 percent is usually used on the propeller. This amount of power drives the airplane, overcoming the drag, so 15 percent of the fuel energy is lost in mechanical friction.

The energy dissipated in friction will of course be converted into heat which is included in the "30% radiated into the air" that he mentions - it can't be a separate element in this sum. I don't doubt his figure for the overall thermal efficiency (25%), but I would add the frictional losses and cylinder cooling losses together to get a ballpark number for the radiator sizing. So if it's a 1,000bhp engine I would expect the radiator and oil cooler to have to dissipate a large chunk of the 1,800bhp (~1.3MW) of heat dumped to the engine casing. Somewhere I have a piece in one of Ricardo's books which suggests that for watercooled engines like the Merlin and Sabre over half the thermal energy dissipated through the engine casing comes out as radiated heat (he was suggesting this is the only reason that aircooled engines didn't melt!), so I'd suggest that for a 1,000BHP engine the radiator and oil cooler would need to be able to dissipate at least 800BHP (~600kW) at full power - 80% of the nominal power dyno'd at the propshaft.

PDR

[tdracer]

Originally Posted by Wensleydale

Not when, in reality, you put your trunk into the boot!

Interesting - I usually put my foot in a boot, and my bag in the trunk, but to each his own

[Wensleydale]

Interesting - I usually put my foot in a boot, and my bag in the trunk, but to each his own

The Trunk is a large wooden chest, used to carry possessions on expeditions and long journeys. It was usually stored in the boot room of large houses which was near the servant's entrance and also where the dirty boots and shoes were kept before they could be cleaned. Therefore, possessions in trunks were often placed into the "boot" before being carried out to the coach: instructions to the house staff being what to put into the boot! I would assume that American coaches did not have a separate boot, but the trunk was strapped onto the top or back of the coach, leading to where possessions were placed. (American houses probably didn't have a boot room either).

[Bing]

American houses probably didn't have a boot room either

I know standards in the colonies were lower, but really.

[SASless]

Ah, but we do leave our boots in the Mud Room.

[Wensleydale]

Ah, but we do leave our boots in the Mud Room.

Then why do you have fenders instead of mudguards?

[PDR1]

Originally Posted by Wensleydale

Then why do you have fenders instead of mudguards?

So do we, but only on boats - and therein lies the clue. The typical american car has always had the agility, fuel-consumption and handling of a fully-laden supertanker so they feel it appropriate to apply maritime terminology to their cars...



PDR

[ORAC]

Could one utilize the Microwave Oven when operating "EMCON"....would hate for the Nav to give away the aircraft's position by heating up some Pies?

Just follow the smoke trail, just like on USAF F4s......

[SASless]

I suppose if we had wings instead of fenders....we would have no need for mud rooms.

But how do you retain your bonnets while using wings?