The Marine Corps version of the V-22 Osprey tilt rotor aircraft arrived at Grand Forks AFB, N.D., last week to begin cold weather testing, the Grand Forks Herald reports. The Marines are at the Northern Tier base to field test cold weather maintenance on the new aircraft under “extreme” conditions, says the Herald.
Denys Overholser, the Lockheed Martin engineer whose insights on the mathematics of radar cross section led directly to the first operational stealth attack airplane and permanently reshaped combat aircraft design and tactics, died April 28 at the age of 86.