How did WW2 paratroopers know when to open their parachutes? Did altimeters existed at the time?Did they just count? - Quora

Why in WWII, American paratroopers are the only Allied forces that have reserve parachutes? - Quora

Why did so many US Airborne troopers carry M1 Carbines in WW2? - Quora

Why didn't the Fallschirmjäger use the same parachutes as Luftwaffe pilots? - Quora

If they were more widely deployed throughout WWII, how effective would the German paratroopers be? And if they did use them, would they have made much of a difference? - Quora

What planes are used for paratroopers? - Quora

Do those doing a HALO style free fall parachute jump rely on the parachute to open automatically? - Quora

What becomes of the parachute after a jump into a military operation? (Was it different between WWII and current operations?) - Quora

Why did the German Fallschirmjäger drop their (long) weapons in separate containers during WW2, while paratroopers of other countries carried their weapons with them during the jump? - Quora

How do paratroopers know when to jump? - Quora

How did WW2 paratroopers know when to open their parachutes? Did altimeters existed at the time?Did they just count? - Quora

How were captured paratroopers treated during WW2? - Quora