The U.S. Air Force in late November announced the re-entry into service of the USAF’s first C-21A (Learjet 35A) transport with an aft-fuselage fin modification designed to improve directional stability. The Air Force said it ordered the Delta Fins modification after an undisclosed number of its twin...
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U.S. Air Force Installs ‘Delta Fins’ On C-21s To Counter Dutch Roll is published in Aerospace Daily & Defense Report, an Aviation Week Intelligence Network (AWIN) Market Briefing and is included with your AWIN membership.
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