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Good point. What does that do to rof and ammunition load? I'm not including an aircraft redesign of belts under the pilot or such, so we're still limited by nose volume for magazine space.By the time the Whirlwind could have been in action in SEA, belt fed Hispanos were available.
there was no 37mm gun. The gun in the photos of a single gun Whirlwind is a 20mm Hispano. What they were testing seems to be lost in time.
A number of books and many websites say the gun is a 37mm but the British had no 37mm gun in development at any of the British gun companies or government arsenals.
37mm was not a standard British gun size and no other British gun in several decades was a 37mm. (except for purchased guns). British had a variety of 40mm guns (2pdrs).
For taking on this Japanese strike this single Hispano version might be useful, especially against the bombers. I assume the extra space in the nose was dedicated to larger ammunition capacity. The single Hispano would be firing 700 rpm or 12 rounds per second down target. Only a few hits into the unprotected bombers and lightly built fighters should do the trick.The single mounting shown is certainly a magazine-fed Hispano (the muzzle brake visible in the pic has a distinctive shape and was only used with magazine-fed versions of the gun).
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A three gun armament would be unusual. I don't think that was a proposed armament option, but the 4 belt-fed Hispanos does seem to be on the table.My pick - 3 belt-fed Hispanos with as much of ammo carried as possible.
I'm proposing it.I don't think that was a proposed armament option.
Then you're in the wrong thread.I'm proposing it.
It was mocked up, so I'd say it passes the bar as a legitimate weapons option. I like this option too, as I assume the pilot has two gun switching, so can use his cannons to down the bombers and the .303 machine guns (especially if incendiary rounds are available) against the lightly built fighters.four 20mm guns, with or without the extra three .303 guns would seem to be the best option if we are allowed a little leeway.
Great pics. Is there any other British twin engine WW2 era aircraft that tried so many nose gun options? The Mosquito comes to mind of course.I suspect the single off-center weapon set-up was just for fit/firing trials for the port inboard 20mm gun. The original intent was to have the outboard 20mm guns in the rear position, as in the top picture below.
View attachment 603815
The blister in the upper right corner of single 20mm gun picture was clearance for the top outboard corner of the port 20mm ammo boxes, after they moved the inboard guns to the rear position and the outboard guns to the forward position. Shown in the pictures below.
View attachment 603816
View attachment 603818
View attachment 603819
Also, the 40mm 'S' gun was going to be mounted on centerline, so . . .?
The "continuous feed" system referred to in the picture caption was the pneumatic powered system and not belt feed. Consumption of compressed air was way, way beyond what was anticipated and the planned (and fitted) air bottle would only fire a few rounds from ONE gun before the air supply was gone and the fitted compressor could not keep up. Four guns using the compressed air magazines would have needed a substantial air supply and compressors.