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For the next attempt (a “supercharger test flight”), they bolted ammo cans to the underside of a removable maintenance panel on each wing, well away from the engine—doubling their yield to 10 gallons, enough for 100 men. This time the mixture froze. The squadron again devoured it immediately. But the ice cream was too flaky for Reinburg’s taste, so his crew modified the ammo cans with small propellers: The wind turned the propellers, which drove a screw inside the can, churning the mixture. The result, finally, was a smooth, creamy chocolate ice cream.



https://www.airspacemag.com/as-next/cool-side-tropical-warfare-180969515/