- #1
aeroseek
- 49
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For a glider to sustain flight at a constant speed, the aircraft must be placed in a dive so that the forward motion is maintained by the component of gravity acting along the glide slope ( as a ball rolling downhill ). This force must equal to the drag on the aircraft. The less drag, the lower the dive angle needed.
For an aircraft wing there is an angle of attack at which the drag is the lowest value for the lift that is produced: ( The L/D) ratio. This is the most efficient angle of attack for the wing and corresponds to the angle of the dive (relative to the fuselage centre line) .
My question is: how does one arrive at the correct weight necessary to maintain the forward force needed to maintain the required forward speed to obtain the best L/D ratio?
How do you arrive at the correct weight for an Radio Controlled model glider for the lowest sink rate and the greatest distance?
I am a little confused at the moment. This seems to address the issue:
http://aviation.stackexchange.com/q...last-if-it-is-trying-to-stay-aloft-without-an
For an aircraft wing there is an angle of attack at which the drag is the lowest value for the lift that is produced: ( The L/D) ratio. This is the most efficient angle of attack for the wing and corresponds to the angle of the dive (relative to the fuselage centre line) .
My question is: how does one arrive at the correct weight necessary to maintain the forward force needed to maintain the required forward speed to obtain the best L/D ratio?
How do you arrive at the correct weight for an Radio Controlled model glider for the lowest sink rate and the greatest distance?
I am a little confused at the moment. This seems to address the issue:
http://aviation.stackexchange.com/q...last-if-it-is-trying-to-stay-aloft-without-an