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IJV -> RE: Valiant Tankers have no buddy fuel (3/1/2019 6:06:17 AM)
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quote:
ORIGINAL: Randomizer
@IJV. Your numbers don't really add up. Wikipedia's numbers conform to those on the BAE web site entry for the Valiant and come converted into metric.
Empty weight = 34,491 kg
Max Takeoff Weight = 63,600 kg
Therefore max useful load is 29,109 kg.
Max bomb load is on the order of 10,000 kg (1 x Blue Danube @ ~9,000 kg or 9,450 kg conventional bombs) which leaves ~20,000 kg for max fuel. Of course empty weight and mission ready zero fuel weight may be quite a bit different. A bomb bay tank probably weighs less than a full load of conventional bombs but 38,360 kg of fuel seems clearly impossible. You would need to know the mission ready zero fuel weight of the B.(K)1, which has to exceed empty weight since it includes all of the detritus that gets put onto a military aircraft before it flies and then subtract that from all-up take off weight. 15,000 kg mission fuel may be too little but 36,000 is clearly too much.
-C
Well, I'm assuming based off the pilots' handbook noting tyre pressures for weights up to 167,000lb / 75.7t (apparently you have to bump the tyre pressure up above 138,000lb which perhaps means it's a 'possible if you must but we'd rather you didn't' sort of thing?) that one can actually fill the tanks and also take a useful load. If 34t/64t is correct then the aircraft can't even lift a full fuel load with zero payload which seems hard to believe. Normal loadouts also won't have been that heavy - Blue Danube is afaik around 4.5t (not 9), Yellow Sun 3t to 700kg, Red Beard 800kg or so for 1.6t total. In game all three of the aircraft have longer ranges when carrying much higher weights of HE which is part of the problem I'm writing up.
The B-47 by comparison seems to have required around 45t of fuel to take a 10t load to 2000nm and return (vs 1400-1500nm for the Valiant), at the side of which which 20t seems to smell rather off, 36t less so.
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