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| Allied and Soviet Air Forces Please use this forum to discuss the Air Forces of the Western Allies and the Soviet Union. |
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#1
17th January 2008, 20:42
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Max bomb loads to distances for BC 4 engine bombers
Does anyone know how to go about calculating this for the Lanc and Halifax in particular?
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#2
17th January 2008, 21:16
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Re: Max bomb loads to distances for BC 4 engine bombers
Start by obtaining the Flight Manuals with the aircraft performance included, particularly the cruise section. This last part might be more difficult to obtain. Then you'll be able to calculate the fuel consumption at particular weights throughout the flight, remembering to include allowances for start-up and taxi, take-off, climb/descend and a comfortable reserve.
Be careful regarding which variant, particularly of the Halifax, you are considering.
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#3
17th January 2008, 21:50
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Re: Max bomb loads to distances for BC 4 engine bombers
Fuel load for the Lancaster is 200+trackmiles/0,94 gallons.
All-up-weight of Lanc III=65.000lbs, tare weight=36.000lbs, service load+oil=3800lbs. Bomb load=65.000-36.000-3800-fuel load.
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#4
17th January 2008, 22:48
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Re: Max bomb loads to distances for BC 4 engine bombers
200+trackmiles/0,94 gallons. Lost me a bit there. I assume not 200mpg but 200 gals + 0.94 gals per track miles?
Fuel weight is 6lbs/gal; correct? I am thinking that the top load to Berlin was ca. 4.5 tonnes which was 500+ mi. direct so probably at least 6-700 according to flight plan and weather?
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#6
18th January 2008, 07:26
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Re: Max bomb loads to distances for BC 4 engine bombers
A fairly standard bomb load carried by the Lancaster of Main Force to Berlin in '44 was 1 x Cookie (4,000 lb) and 8 x 500 lb.
Don't have any info on what the Halifax may have carried.
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#7
18th January 2008, 11:43
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Re: Max bomb loads to distances for BC 4 engine bombers
Lancaster bomb loads
http://www.lancaster-archive.com/Lanc-bombs-Loads.htm This is the bomb load of Halifax III, MZ906, AL* H from Leeming, Yorkshire to Essen. - 6 x 500 lb MC bomb - 1 x 2000 lb HC bomb - 5 x 1000 lb SAP bomb
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#8
18th January 2008, 13:02
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Re: Max bomb loads to distances for BC 4 engine bombers
This mathematics is not too difficult!
200 gallons reserve Berlin is 1836 miles: needed 1836/0,94 gallons=1954 gallons. Full fuel load=200+1954=2154 gallons. Fuel weight: 2154x7,2 lbs=15.509lbs. (Fuel density is 7,2lbs per gallon)
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#9
18th January 2008, 13:08
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Re: Max bomb loads to distances for BC 4 engine bombers
Another completion: fuel consumption of 0,94 miles per gallon.
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#10
18th January 2008, 14:44
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Re: Max bomb loads to distances for BC 4 engine bombers
Plus allowance for non-direct approach? What about the greater fuel burn in the (long slow) climb?
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