claycookiemonster
Well Known Member
Given that short take off and landing distance is baked into RV's, has anyone tried to quantify a way to take off using less than full power since many runways are long enough to do a couple of stop and go's?
All my Air Force flying (T-38s and F-111s) was done with full afterburner regardless of the actual runway available; but maintenance was free and we had ejection seats. Now in the airlines, we almost NEVER use full power for take off, preferring to save the engines and money.
Airliners reduce power by tricking the engines into acting as though the outside air temperature was higher than is actually is, therefore producing less thrust. Extensive calculations are on the books to ensure these reductions still allow sufficient thrust to meet all FAA climb requirements.
Couldn't some of the more sophisticated electronic injection systems and EFIS systems do these calculations? Since the weight of an RV doesn't change to the degree it does on airliners, I believe all we'd have to worry about is runway length and pressure altitude.
Of course, reducing take off power might not allow one to fly beyond TBO (although it might be worth asking that question) but if you can operate safely and go easier on the motor, why wouldn't we?
I'll now step back and let the smart types step up to the mike.
All my Air Force flying (T-38s and F-111s) was done with full afterburner regardless of the actual runway available; but maintenance was free and we had ejection seats. Now in the airlines, we almost NEVER use full power for take off, preferring to save the engines and money.
Airliners reduce power by tricking the engines into acting as though the outside air temperature was higher than is actually is, therefore producing less thrust. Extensive calculations are on the books to ensure these reductions still allow sufficient thrust to meet all FAA climb requirements.
Couldn't some of the more sophisticated electronic injection systems and EFIS systems do these calculations? Since the weight of an RV doesn't change to the degree it does on airliners, I believe all we'd have to worry about is runway length and pressure altitude.
Of course, reducing take off power might not allow one to fly beyond TBO (although it might be worth asking that question) but if you can operate safely and go easier on the motor, why wouldn't we?
I'll now step back and let the smart types step up to the mike.