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• March 30, 2016 Create Date
• March 30, 2016 Last Updated

Aircraft Empennage Structural Detail Design

1. Project Summary
1.1 si

This project involved the detailed design of the aft fuselage and empennage structure,
vertical stabilizer, rudder, horizontal stabilizer, and elevator for the Triton primary flight trainer.
The main design goals under consideration were to illustrate the integration of the control
systems devices used in the tail surfaces and their necessary structural supports as well as the
elevator trim, navigational lighting system, electrical systems, tail-located ground tie, and
fuselage/cabin interface stmcture. Accommodations for maintenance, lubrication, adjustment,
and repairability were devised. Weight, fabrication, and (sub)assembly goals were addressed.
All designs were in accordance with the FAR Part 23 stipulations for a normal category aircraft.
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The Statement of Work for the cockpit set forth several design requirements. The
structural designs are required to sustain anticipated loading conditions which can occur in
normal flight training operations. Easy removal or re-installation of the fail portions from/to the
fuselage must be provided by means of interface structures which safely carry the applicable
loads defined in FAR Part 23 and the Statement of Work. Adverse effects due to varying
environmental conditions must be addressed, including sand or dust, rain, ice or snow, and salt
or fog. The aircraft must have a service life of 20 years. The critical design components are

required to provide a safe life of 101 load cycles and 10,000 operational mission cycles.