Transport: Second In-Line

Approved by the Civil Aeronautics Authority last week was the second high-powered U. S. engine to be built inline, for streamlining into wings and fuselages of high-speed airplanes. Like the Army's 1,000-horsepower Allison (TIME, Jan. 30), which has much less head resistance than broad-beamed radials, the new Ranger has twelve cylinders in two banks. Unlike the Prestone-cooled Air Corps motor, it is air-cooled, has finned cylinders set head down below the crankcase for better pilot visibility.

Developing 500 horsepower, the Ranger is the lightest powerplant of its size in the world (1.28 pounds...

Want the full story?

Subscribe Now


Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!