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

How many parachutes failed on D-Day? - Quora

How accurate are modern paratroop drops? - Quora

What kind of plane do paratroopers jump out of? - Quora

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

Are paratroopers better than marines? - Quora

Did the D-Day paratroopers use tandem jumps, or did they primarily/exclusively went solo? - Quora

Do paratroopers in any military (current or history) ever train to shoot on descent? - Quora

Did WWII paratroopers carry their parachutes on their backs while jumping? What was the standard procedure for parachuting during World War II? - Quora

What happened to the WWII German paratroop forces (Fallschirmjäger) after their last parachute assault during the Greece campaign? - Quora

During an airborne drop, how are crew served weapons deployed on the battlefield, considering that some weapon systems are too large to normally attach to a paratrooper and jump with? - Quora