Popular Mechanics, v. 76, n. 3, 1941

Google books

1941-09

Public Domain (Google digitized)

Is Part Of
Title	Alternate label	Class
Uncle Sam's Iron Fighters
Armed Target Mimics Bandit by Shooting Back
"Pin Boys" Score Hits On Rifle Range From Trench
Power-Driven Assembly Line Steps Up Airplane Deliveries
Merchants Ship Converted Into War Raiders
Paint and False Structures Provide Disguise
Parachutists Make First Jumps in "Suspenders"
Towers Flash Radio Beams to Detect Warplanes
Wind Buggies Blow Rookie Glider Pilots in Air
Monster Warbird "B-19" Tries Out Its Wings
Test-Flying Planes Before they are Built
"Pilot Buggy" Trains the Reflexes of Fledgling Airmen
Invisible Lamp for Blackout Illuminates Road Signs
Forty Different Raw Materials Used in Military Trucks
Building Tomorrow's Navy
Pilot's Skill Saves Parachutist Dangling in Air
Air Photos Are Printed in a Gas-Ribbed Tent
Bullet Speed Is Measured To 1,000th of Second
Pendulum Helps Pilot Keep Level While "Flying" Blind
"Paratroops" Make First Jumps From a Captive Baloon
Cutaway Drawings Speed Aircraft Production
One-Ton Bomb Is Ready to Start on Air Journey Abroad
Pulley Exerciser Helps Sailors Keep Waistline Limber
Ten 200-Pound Assault Boats Are Nested on Army Truck
Robot Clock for Navigator Shows Position of a Plane