Reserve fuel Solution

STEP 0: Pre-Calculation Summary
Formula Used
Reserve fuel = Fuel load-Mission fuel
Wresf = Wf-Wmisf
This formula uses 3 Variables
Variables Used
Reserve fuel - (Measured in Kilogram) - Reserve fuel for manoeuvring, holding, aborting the landing and making a diversion flight.
Fuel load - (Measured in Kilogram) - Fuel load may be available fuel (consumable fuel) or total fuel and is usually dry weight.
Mission fuel - (Measured in Kilogram) - Mission fuel is that fuel at the time of take-off.
STEP 1: Convert Input(s) to Base Unit
Fuel load: 9499 Kilogram --> 9499 Kilogram No Conversion Required
Mission fuel: 8761 Kilogram --> 8761 Kilogram No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Wresf = Wf-Wmisf --> 9499-8761
Evaluating ... ...
Wresf = 738
STEP 3: Convert Result to Output's Unit
738 Kilogram --> No Conversion Required
FINAL ANSWER
738 Kilogram <-- Reserve fuel
(Calculation completed in 00.004 seconds)

Credits

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Created by Himanshu Sharma
National Institute of Technology, Hamirpur (NITH), Himachal Pradesh
Himanshu Sharma has created this Calculator and 50+ more calculators!
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Verified by Kartikay Pandit
National Institute Of Technology (NIT), Hamirpur
Kartikay Pandit has verified this Calculator and 400+ more calculators!

19 Design Process Calculators

Summations of priorities of objectives that need to be maximized (Millitary planes)
​ Go Priority Sum of objectives to be maximized (%) = Performance Priority (%)+Flight Quality Priority (%)+Scariness Priority (%)+Maintainability Priority (%)+Producibility Priority (%)+Disposability Priority (%)+Stealth Priority (%)
Thrust-to-Weight ratio given vertical velocity
​ Go Thrust-to-weight ratio = ((Vertical Airspeed/Aircraft Velocity)+((Dynamic Pressure/Wing Loading)*(Minimum Drag Coefficient))+((Lift Induced Drag Constant/Dynamic Pressure)*(Wing Loading)))
Priority of objective weight in design process given minimum design index
​ Go Weight Priority (%) = ((Minimum Design Index*100)-(Cost Index*Cost Priority (%))-(Period Index*Period Priority (%)))/Weight Index
Priority of objective cost in design process given minimum design index
​ Go Cost Priority (%) = ((Minimum Design Index*100)-(Weight Index*Weight Priority (%))-(Period Index*Period Priority (%)))/Cost Index
Priority of objective period of design given minimum design index
​ Go Period Priority (%) = ((Minimum Design Index*100)-(Weight Index*Weight Priority (%))-(Cost Index*Cost Priority (%)))/Period Index
Period of Design Index given Minimum Design Index
​ Go Period Index = ((Minimum Design Index*100)-(Weight Index*Weight Priority (%))-(Cost Index*Cost Priority (%)))/Period Priority (%)
Weight Index given Minimum Design Index
​ Go Weight Index = ((Minimum Design Index*100)-(Cost Index*Cost Priority (%))-(Period Index*Period Priority (%)))/Weight Priority (%)
Cost Index given Minimum Design Index
​ Go Cost Index = ((Minimum Design Index*100)-(Weight Index*Weight Priority (%))-(Period Index*Period Priority (%)))/Cost Priority (%)
Minimum design index
​ Go Minimum Design Index = ((Cost Index*Cost Priority (%))+(Weight Index*Weight Priority (%))+(Period Index*Period Priority (%)))/100
Battery Weight Fraction
​ Go Battery Weight Fraction = (Range of Aircraft/(Battery Specific Energy Capacity*3600*Efficiency*(1/[g])*Maximum Lift to Drag ratio of Aircraft))
Summation of priorities of all objectives that need to be minimized
​ Go Priority Sum of objectives to be minimized(%) = Cost Priority (%)+Weight Priority (%)+Period Priority (%)
Electric Power for Wind Turbine
​ Go Electric Power of Wind Turbine = Shaft Power*Efficiency of Generator*Efficiency of Transmission
Propulsion Net Thrust
​ Go Thrust force = Air Mass Flow Rate*(Velocity of Jet-Flight Velocity)
Maximum payload capability
​ Go Payload = Maximum take off weight-Operating empty weight-Fuel load
Induced Inflow Ratio in Hover
​ Go Inflow Ratio = Induced Velocity/(Rotor Radius*Angular Velocity)
Range increment of aircraft
​ Go Range increment of aircraft = Design range-Harmonic range
Mission fuel
​ Go Mission fuel = Fuel load-Reserve fuel
Reserve fuel
​ Go Reserve fuel = Fuel load-Mission fuel
Fuel load
​ Go Fuel load = Mission fuel+Reserve fuel

Reserve fuel Formula

Reserve fuel = Fuel load-Mission fuel
Wresf = Wf-Wmisf

What is reserve fuel in aviation?

Final reserve fuel is the minimum fuel required to fly for 30 minutes at 1,500 feet above the alternate aerodrome or, if an alternate is not required, at the destination aerodrome at holding speed in ISA conditions.

How to Calculate Reserve fuel?

Reserve fuel calculator uses Reserve fuel = Fuel load-Mission fuel to calculate the Reserve fuel, Reserve fuel is an additional quantity of fuel carried on aircraft to accommodate unexpected events or deviations from the planned flight, it ensures that the aircraft has sufficient fuel to complete the journey safely and land at the intended destination with an appropriate margin of safety. Reserve fuel is denoted by Wresf symbol.

How to calculate Reserve fuel using this online calculator? To use this online calculator for Reserve fuel, enter Fuel load (Wf) & Mission fuel (Wmisf) and hit the calculate button. Here is how the Reserve fuel calculation can be explained with given input values -> 62 = 9499-8761.

FAQ

What is Reserve fuel?
Reserve fuel is an additional quantity of fuel carried on aircraft to accommodate unexpected events or deviations from the planned flight, it ensures that the aircraft has sufficient fuel to complete the journey safely and land at the intended destination with an appropriate margin of safety and is represented as Wresf = Wf-Wmisf or Reserve fuel = Fuel load-Mission fuel. Fuel load may be available fuel (consumable fuel) or total fuel and is usually dry weight & Mission fuel is that fuel at the time of take-off.
How to calculate Reserve fuel?
Reserve fuel is an additional quantity of fuel carried on aircraft to accommodate unexpected events or deviations from the planned flight, it ensures that the aircraft has sufficient fuel to complete the journey safely and land at the intended destination with an appropriate margin of safety is calculated using Reserve fuel = Fuel load-Mission fuel. To calculate Reserve fuel, you need Fuel load (Wf) & Mission fuel (Wmisf). With our tool, you need to enter the respective value for Fuel load & Mission fuel and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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