This is a draft cheat sheet. It is a work in progress and is not finished yet.
Alternate Landing Area (ALA)
|
5%/ 1in 20 20X height away from end TODA
|
Climb Gradient
CG |
RoC ÷ GS |
RoC Req. |
CG x GS |
Vtoss |
TO Chart |
TAS/RoC |
Max RoC Chart |
Density Height
PH |
Elev/Alt + [1013-QNH]x30hPa |
ISA Temp |
15-2x(PH÷1000) |
ISA Corr. |
120x(OAT-ISA Temp) |
DH |
PH+ISA Correction |
Decl. DH |
Elev + Chart correction |
Fuel Calculations
FF |
Time@Rate/Total DistxRate÷GS |
Min Fuel Req |
(FFx1.15)+FR+SU/Taxi |
FF Avail. |
(usable fuel@SU-FR-SU/Taxi)÷1.15 |
Safe Endur. |
FF Available@Rate |
Alternate |
Add time from Dest to Altern in FF Calc |
Holding |
Extra item in fuel calc list |
Echo: 35%PWR, 17.2gph (WX/Search Ops) |
FF Avail - Transit Fuel = Hold/Search fuel |
Range/ Endurance
SAR (ANMPG) |
TAS ÷ Flow Rate |
SGR (GNMPG) |
GS ÷ Flow Rate |
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Establishing MTOW
Least of: |
TO Limit |
| |
Landing Limit + FF |
| |
MZFW + FoB@TO (FFx1.15+FR) |
Max Payload
ZFW |
MTOW - FOB@TO |
Payload |
ZFW - (BEW + Pilot) |
Max Cargo |
Payload - PAX |
Max Fuel
Payload |
Max Cargo + PAX |
ZFW |
Payload + (BEW + Pilot) |
FoB @ TO |
MTOW - ZFW |
Shifting Weight (AFT Limit)
Shift (mm) |
Pres. CoG - Req. CoG |
Wt. to Shift |
(Pres.Wt. x Shift)÷Diff in Arms |
OR |
Change Moment÷Change Arms |
Ballast Fuel/ Add/Sub WT (AFT)
Shift |
Pres. CoG - Req CoG |
Weight to Add |
(Pres.Wt. x Shift) ÷ (Req CoG - Comp. Arm) |
Ballast fuel is WEIGHT not FF
Add hard ballast up to MZFW then fuel
Shift Weight (FWD Limit)
Shift |
Fwd Limit - Pres CoG |
Wt to shift |
(Pres Wt x Shift)÷Diff in arms |
ECHO:
Fwd Lim. = [Pres Wt.-2360]x.27+2400
.27 = Diff in limits (mm)÷Diff in weights
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Add/Sub Weight (FWD Limit)
Must use graph (CoG Envelope)
Plot present Wt./Index (A)
Add/Sub 100kg and Units
Plot new Wt./Index (B)
Draw line (A)-(B) |
Floor Load Intensity
Pressure = |
Force ÷ Area |
Force = |
Pressure x Area |
Area = |
Side 1 x Side 2 |
MAC
ECHO:
#mm-2190 = (A)mm
% of 1900 = ((A)÷1900)x100 |
ETP (CP)
Dist to ETP |
Total DistxGS(H)÷2xTAS |
Time ETP-A |
Dist to ETPxGS(H) |
Time ETP-B |
[Total Dist-DistToETP]xGS(O) |
Halfway in nil wind, moves upwind
PNR
Time to PNR |
[Safe Endur. x GS(H)]÷2xTAS |
A - PNR |
Time to PNR @ GS(O) |
B - PNR |
[Safe Endur.-Time to PNR]@GS(H) |
@= |
(Dist÷GS)x100 |
Greatest out in nil wind, any wind decreases dist.
AvGas
Gal-Kg x2.72
Gal-L x3.8
L-Kg x0.72 |
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