Accession Number:

ADA273003

Title:

Design, Fabrication and Test of a Vertical Attitude Takeoff and Landing Unmanned Air Vehicle

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1993-06-01

Pagination or Media Count:

234.0

Abstract:

Future fleet needs for real-time intelligence require an unmanned platform capable of operations from small surface combatants without the need for extensive support personnel and equipment and without causing disruption to the operations of the ship from which it operates. A candidate must not only takeoff and landing vertically but also be capable of high forward flight speeds and efficient on-station performance. The design and initial fabrication of a Vertical Attitude Takeoff and Landing VATOL Unmanned Air Vehicle UAV airframe was completed at the Naval Postgraduate School. The vehicle, called Archytas, was a combination of two existing UAVs--the AROD and Aquila--as well as locally manufactured components, including a canard and wing spar. The objective of creating Archytas was to provide a proof-of-concept platform for research to explore performance mde-offs and stability augmentation. A three- degree-of-freedom simulation was used as the focus of the design efforts, to validate design decisions made in the fields of propulsion, aerodynamics, structures and flight mechanics. Engine tests were conducted to determine thrust and control power. Structural components were designed, fabricated and then tested, making modifications where necessary to ensure sufficient airframe strength. A longitudinal control system was designed, validated by simulation, and tested structurally. Unmanned Air Vehicle UAV, Vertical Attitude Takeoff and Landing VATOL, Tailsitter, Design, Fabrication, Test, Simulation.

Subject Categories:

  • Pilotless Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE