PPRuNe Forums - View Single Post - Jet engines - why thrust decreases with speed
Old 6th Mar 2006, 18:56
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powdermonkey
 
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STR, Thank you for that, they omitted the thrust equation, and with it it is very obvious, I'm sure I had it in AGK,but forgot it now.
My problem is my notes state " any increase in forward airspeed will compress the air at the intake increasing the mass per unit volume"
But then according to the formula, any increase in forward speed/intake velocity reduces thrust.
So is it a case of one having the greater overall effect of thrust reduction?

By that token, should not intake lag help with thrust according to the formula, if exhaust velocity is constant then if intake velocity is reduced, thrust should increase relatively.

Very confused
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