MEM425F09_5.ClimbGlide03

MEM425F09_5.ClimbGlide03 - MEM425 Aircraft Performance...

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MEM425: Aircraft Performance & Design ** Glide & Climb Dr. Ajmal Yousuff Dept. MEM Drexel University
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Power “choking” As altitude increases the P req increases while the P avail decreases Yousuff MEM 425 aircraft 2 P R V P R @ sea level P avail @ sea level
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Climb performance Yousuff MEM 425 aircraft 3 horizon velocity q
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Climb Analysis Yousuff MEM 425 aircraft 4 Viewing T=T avail TV=P avail . Note: DV = P R . sin cos T D W L W q q / sin TV DV R C V W q
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Climb, contd. 1 1 cos sin sin / T D T W W L D q q Yousuff MEM 425 aircraft 5 Angle of climb: For a jet-a/c (T avail ~const.), with small q : max max L D C C q
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Ceilings Absolute Ceiling: It’s that altitude at which R/C=0 . Service Ceiling: Altitude at which (R/C)
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