This airplane was designed for the 1998/1999 AIAA/Cessna/ONR Design/Build/Fly contest.  The mission objective was to carry the heaviest possible payload consisting of water bottles, over a specified course using multiple sorties.  Aircraft were subject to several design constraints including a runway length of 100 ft., span length of 9 ft, motor type, etc.  The Hercules aircraft finished in 11th place at the contest.

Specification List: 
  • Wing span:        107 in
  • Empty weight:    35 lb
  • Motors:               Dual Astro FAI 40 with 3:1 gear ratio
  • Batteries:           2 x 17 cell Sanyo 5000 mah NiCd packs


  • Tractor / Pusher dual motor design
  • Twin boom, twin vertical tail design
  • Nosewheel braking
  • Wing endplates
  • Plywood fuselage construction
  • Foam core wing with tissue/glue covering
Team Info: 

The Hercules design team was led by a Chief Engineer, and divided into three primary groups: Aerodynamics/Stability and Control, Propulsion, and Structures.

Chief Engineer:  David Roberts

Aerodynamics / Stability and Control:

  • Justin Raffety (Lead)
  • David Roberts


  • Leonel Blanco (Lead)
  • Aaron Frable
  • Tyson Hanes
  • Brian Hargrave
  • Aaron Ochs


  • Fu Yuet (Lead)
  • Lee Kuan-Jye
  • Ban Fu Chee
  • Gan Vee Ling
  • Yap Eg-Sin
  • Lee Chin Teck
  • Gim Khuan Ng
  • Chris Riemer
  • Chad Goodman

Pilot: Dr. Ron Delahoussaye

Faculty Advisor: Dr. Andrew S. Arena, Jr.

Assistant: Joe Conner


The following sponsors contributed to the project.  The Hercules team greatly appreciates their support, and considers them members of our team.  Without their support, the project would not have been possible.

NASA Oklahoma Space Grant Consortium
Ditch Witch
Advanced Racing Composites
Richardson Engineering

Design, Build, Fly