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The official data sheet gives 570 miles at most economical speed (210 mph at 20,000 feet).
I believe ( and could well be wrong) that the data sheets have an allowance for warm-up, take-off, reserve and combat?
First I want to mention, I don't want to turn this thread to a FW 187 thread.
Specific consumption of the DB 601 A1 at 5000m from engine data sheets.
1.15 ata 0,22 gr/PS/h = 0,289 l/PS/h
0.8 ata 0,225 gr/PS/h = 0,296 l/PS/h
So if someone have the specific data's of the Whirwind and the RR Peregrine engine he can do a calculation.
I have my doubts about a theoritical range of the Westland Whirland of 800 miles, because this would be more then the theoretical performance of a FW 187 B with 1100l internal capacity and I don't believe that the Peregrine engines consumes so much less fuel then the early Db 601 A1 with 1100PS.
The combat radius of 150 miles seems reasonable, perhaps a little optimistic. Depends on how much combat power reserve and blocked residual fuel amount.
Hello SR6,
is the weight and wingspan important?
At german data sheets the specific fuel consumption is mentioned for the individual engines (Jumo 210, 211, 213 Db 601 etc...) in Liter/h or Gramm/PS/h at X ata.
I think/thought you must only know which speed the a/c will reach which X ata/specific engine and the speed depends on weight, aerodynamik (wingspan etc.) of the individual a/c.
Is this right or have I an error in reasoning?