Question: T W 0 = 0 . 4 W 0 S = 6 0 . 0 l b f t 2 Aspect Ratio = 7 .

TW0=0.4
W0S=60.0lbft2
Aspect Ratio =7.0
CD,0=0.022
e=0.7
Ccruise=0.55lbhr-lb,WcruiseS=0.85*W0S
Cloiter=0.45lbhr-lb,WloiterS=0.80*W0S
Mmax=0.8,
Mcruise=0.7,
Crew: 2 pilots each weighing 175 lbs , plus 25 lbs of luggage per pilot
Additional Payload: 3000 lbs
Note:
L/D can be solved for both cruise and loiter using the following equation:
LD=1qCD0WS+WSqAe
Assume cruise altitude is a constant 30,000ft
Determine Vloiter by maximizing L/D at the cruise altitude
When calculating mission fuel fractions, assume:
W1W0=0.97
W2W1=0.98
W5W4=0.99
W6W5=0.992
To calculate WeW0, use the "jet transport" a, b, and C coefficients in Raymer Table 6.1
Starting with an initial guess of W0=14,500lbs, approximate W0 by using the successive
approximation iteration method with the following equation and write out the result you
get after 3 iterations:
W0=Whuman+Wpayload1-(WemptyW0)-(WfuelW0) where WfuelW0=1.06(1-WxW0)
T W 0 = 0 . 4 W 0 S = 6 0 . 0 l b f t 2 Aspect

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