Main Menu

Schweizer X-26 Frigate



The X-26A was an Schweizer SGS 2-32 sailplane that was used by the Navy to expose novice pilots to the phenomenon of yaw/roll coupling. Conventional jet trainers reacted much too quickly and dangerously for effective instruction - an aircraft that had unusually slow roll rates and excellent recovery characteristics was needed instead. Four of the gliders were originally delivered, but accidents soon claimed three of them. In each case the aircraft was replaced with a new one, and the training program continued, making the X-26 the longest-lived X-vehicle.


The Lockheed X-26B was created in response to a requirement for a stealth-type observation aircraft in Vietnam. Two of the Navy X-26A aircraft were temporarily modified with small engines and slow-speed propellers, and were eventually equipped with a variety of intelligence-gathering sensors. Testing in Vietnam was evidently successful as 14 further aircraft were acquired under various designations, including 11 Lockheed YO-3As.

The original X-26As were demodified and returned to the Navy after the construction of the YO-3As. One X-26B and a YO-3A are preserved in the Army Aviation Museum at Fort Rucker, Alabama. USN serial were 157932-157933, 158818, 159260, and 161571.



Copyright © 2021 all-aero. All Rights Reserved.
Joomla! is Free Software released under the GNU General Public License.