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Old 12-27-2012, 06:50 PM
KG26_Alpha KG26_Alpha is offline
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Location: London
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Quote:
Originally Posted by bongodriver View Post
OK then:

if you climb at constant airspeed then true airspeed increases with altitude, at constant indicated airspeed the 'mass' of air flowing through the cooling system remains constant with the added effect of reduced ambient temperatures.
penalties of high altitude on performance are not really a factor, bottom line is if you keep the same amount of air mollecules passing through the cooling system then you won't have problems cooling, I'm not entirely sure where crumpp gets the theory that maintaining constant indicated airspeeds is not possible but everyone else understands that a constant reading on the airspeed indicator means constant indicated airspeed and we also know how to achieve it.
To some extent engine temperatures will also fall off with the natural reduction of power with altitude also.


Oh and

Looking forward to the next installment from the Nonsensical Administration of Crumpp Aeronautics

p.s. I'll post you a picture of what high altitude shows on the Learjet PFD tonight as I have an empty sector back from Denmark tonight.




Quote:
Originally Posted by NZtyphoon View Post
Ahhh, crumpp troll! Maybe research at the Trolling Academy will one day be able to explain crumpp?
Congratulate yourselves on the closure of another thread.

I'm sure your making everyone happy here with your continued personal attacks resulting in thread closures.

Or perhaps infractions leading to banning is your preference.



Quote:
Originally Posted by JtD View Post
It's not a Crumpp problem here. The generalizations are pointless.

Indicated air speed is not equivalent to mass flow, because there's a square root over density in the IAS calculation. At a constant IAS, mass flow goes down with altitude. WW2 aircraft generally achieved lower IAS's with altitude, so mass flow goes down even more. This is countered by the reduced temperatures at altitude.

Now you can argue all day about the net effect, but unless you come up with a statistically significant number of test results, it will remain pointless. What remains is an unnecessary exchange of rudeness, which I think this forum has seen enough.
.

Quote:
Originally Posted by Dirkan View Post
Hi!

Has anyone tested the exact oil temperature at which the engine will break?
Or perhaps too much boost in combo with RPM, regardless of oil temp?
The radiator always breaks at 120 Celsius, 10/10 times, however, the oil temp is a bit more elusive.
(I don't give a rats ass about the pilot notes)

Thanks in advance

Last edited by KG26_Alpha; 12-27-2012 at 07:09 PM.