MEM 425 HW 2

MEM 425 HW 2 - MEM 425 10/07/2009 b) = VT min , = , = ( )...

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V t [email protected] =170 ft/s T r [email protected] =216.8 lbs V t [email protected] =200 ft/s T r [email protected] =216.8 lbs V t [email protected] =240 ft/s T r [email protected] =216.9 lbs V p [email protected] =128 ft/s P r [email protected] =5577267 lbs-ft/s V p [email protected] =150 ft/s P r [email protected] =6564598 lbs-ft/s V p [email protected] =180 ft/s P r [email protected] =7830232 lbs-ft/s Peter Carrion MEM 425 10/07/2009 Home Work 2 Wing span (B) = 35.8 ft. Wing area (S) = 174.0 ft 2 Normal gross weight (W) = 2950 lb Parasite drag coeff. = 0.025 Oswald efficiency factor (e) = 0.8 Propeller efficiency, = 0.8 Sea-level air density ( ) ρ = 2.3769*10 -3 slugs ft -3 = = = = , + = , + TR WCLCD CL LqS 2WρV2S CD CD 0 KCL2 CD 0 CL2πeAR a)
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Peter Carrion
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Unformatted text preview: MEM 425 10/07/2009 b) = VT min , = , = ( ) .-2wρskCD 0 2wρs1πeARCD 0 2 2950 2 3769x10 ( ) . ( . ). = . 3 174 1π 8 7 36 025 144 8fts c) = VP min , = , = ( ) .- ( ) . ( . ) 2wρsk3CD 0 2wρs1πeAR3CD 0 2 2950 2 3769x10 3 174 1π 8 7 36 ( )(. )= . 3 025 110 03fts d) e) 2 | P a g e Peter Carrion MEM 425 10/07/2009 f) g) h) i) j) k) l) m) n) o) p) q) r) s) t) u) v) w) x) y) = . = . [email protected] 168 49fts [email protected] 128 03fts z) = . = . [email protected] 198 32fts [email protected] 150 69fts aa) = . = . [email protected] 236 56fts [email protected] 179 75fts ab) ac) ad) 3 | P a g e...
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This note was uploaded on 12/06/2009 for the course MEM 425 taught by Professor Yousuff during the Fall '08 term at Drexel.

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MEM 425 HW 2 - MEM 425 10/07/2009 b) = VT min , = , = ( )...

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