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Old 03-20-2012, 11:42 PM
NZtyphoon NZtyphoon is offline
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Question: How much fuel was needed to fly all defensive sorties flown by FC during the battle?

The Battle of Britain T.C.G. James: 51,364 sorties, day & night from July 10 through Sept 30: Hooton’s Eagle in Flames, Table 2, FC flew Sep 23-29: 4,825 defensive sorties Sep 30 – Oct 6: 1,782 defensive sorties.

Total = 57,971 sorties

1 imperial gallon of 100 Octane = 7.1 pounds ("Oil" by D.J Peyton-Smith the official British war history on the oil and petroleum industry during WW2 page xvii "Note on Weights and Measures"):

1 ton of 100 octane = 2,240 lbs divided by 7.1 = 315.5 imp gal

Fuel Capacities:

Defiant I = 97 imp gal
Hurricane I = 90 imp gal
Spitfire I & II = 84 imp gal
Total 271 imp gal

divided by 3 = 90.3 imp gal

315.5 divided by 90.3 = 3.5 fuel loads per ton of fuel

57,971 divided by 3.5
Answer: 16,563 tons of fuel

Crumpp likes to talk about shelf life and fuel being returned to depots etc: total 100 Octane fuel issued between July 11 and October 31 = 62,000 tons:

fuel consumed = 51,000 tons - 16,563 tons = 34,437 tons available for other purposes.

Now why, Eugene, would FC bother using 87 Octane fuel for half its frontline fighters? Hmmm? Can you give us some good, tangible reasoning bolstered by a modicum of evidence that this is the way things were done?
Pleeease?

Quote:
Originally Posted by fruitbat View Post
ahh, just wondered why you copy/pasted those!

By the way Osprey, i love the specs of your computer, if only i had the money
Here's mine http://oldcomputers.net/amiga1000.html I can play COD but very slowly.
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File Type: jpg weekly-issues-100octane.jpg (109.9 KB, 4 views)
File Type: jpg 100oct-consumption-bob.jpg (262.9 KB, 2 views)