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MIL POWER TAKEOFF (12Klb a/c, no wind)

{(1) calculate ground roll for TO
{(2) calculate refusal speed from adjusted TOF
{(3) find ground roll to Vref
{(4) add ~1000' for 3 sec reaction time to put good engine to MAX
(5) accel thrust - 2 E (MIL) ~ 2 x 2050 = 4100 1 E (MAX) ~ 2900
ratio 1E(MAX)/2E(MIL) ≈ .7

=>[[strikethrough]] dist from Vref to VTO is ↑ by 10/7
IF SETO ≃ 156, use this: dref + 1000 + (dTO - dref) x 10/7 [[/strikethrough]]

(6) if ∆Vse > 0, use SE thrust chart to calculate ∆roll from Vref to VSETO 
mil power to "reasonable" if dSETO < runway length

EFD (SL, 9000')
@ 30°C (MIL TOF = 4.5, [[circled]]MAX TOF (∆VSE=4)=3.0)[[/circled]][[arrow to TOF]]   

[[left margin]]always reasonable on 17-35[[/left margin]] 

dTO=4800' 
Vref=145 
dref=4100' [[circled]]∆SE=1600[[/circled]] 
total=(4100)+(1000)+(1600)=6700

[[right margin]]
@ 40°C (MIL TOF = 5.0, MAX TOF [∆VSE = 9] = 3.3)  
dTO = 5400' 
Vref = 140 
dref = 4100' ∆SE = 3200 
total = (4100) + (1000) + (3200) = 6700'
[[/right margin]]

[[left margin]] 12K lb a/c: reasonable for T≤80°F at ELP (RWY 22)[[/left margin]]

ELP (4000', 12,000')[[arrow down to MAX TOF]] ∆VSE= 16
@ 20°C (MIL TOF = 5.5, MAX TOF = 3.8) 
dTO=6100' 
Vref=150 
dref=5500  ∆SE=3500 
total=(5500 + 1000+ 3500)=10,000

 12.5K lb [[box]]6800' 148 5700 4900 =>11,600 [[/box]

[[right margin]]
@ 30°C (MIL TOF=6.0, MAX TOF [∆VSE=19]=4.0)  
dTO=6800' 
Vref=146 
dref=5800 ∆SE=5600 
total = 5800 + 1000 + 5600 = 12,400
[[/right margin]]

Transcription Notes:
VRef - Landing reference speed or threshold crossing speed.