WWII - 1943, USA: Testing Weapons, Firepower Vs. Jap Log Pillboxes

WWII - 1943, USA: Testing Weapons, Firepower Vs. Jap Log Pillboxes Titles. 10:34:41 Men cutting logs & constructing Japanese pillboxes at AberdeenProving Grounds, Maryland from plans by Army Corps of Engineers. Men moving logs, notching & putting in place w/ earthfilled oil drums, cover & camouflage. 10:35:48 Animated drawings (overexposed). 10:36:23 Sergeant / soldier inspecting. 10:36:49 Pan over weapons to be tested (beginning overexposed). 10:37:14 Rifle grenades, bazookas, rockets, 81mm mortars, 37mm field guns & 105mm howitzers are loaded & fired for treetop bursts as well as direct hits. 10:39:43 Soldier inspects damage; CUs Mark II fragmentation grenade w/ adaptor M1 fired from 1903 rifle (launcher grenade M1). 10:40:36 M9 A1 80 tank rifle grenade fired from carbine M8 launcher. CUs using blank cartridge. White phosphorus T5 rifle grenade & M17 rifle grenade. 10:41:25 Bazooka, 2.36” rocket launcher M1A1 in CU, loading & firing. 10:41:37 Inspecting damage inside of pillbox w/ 38 lb 4.5” rocket M8 fired from T-35 rocket launcher. MS & CU loading, setting up in field & electrical firing by remote control. 10:42:35 End R1 10:42:50 Damage viewed after penetrating 6 ft of earth by 4.5” rocket. 10:43:26 MCU M2 mortar shown & modification for lowering angle for firing & maximum damage. 10:43:54 Soldier inspecting damaged pillbox. 10:44:19 4.2” chemical mortar shown. Damage shown. 10:44:36 T-32 37mm gun shown in MCU. More damage inspection 10:44:59 75mm pack howitzer w/ M48 high explosive shell shown. Heavy damage shown. 10:45:13 105mm howitzer on M3 & M2 carriages shown. 10:45:30 Summary title of conclusions. The End. WW2; Weapon Development; Note: entire card sold as single reel.