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2003 OSU Team Orange "Kitty Hawk"
Summary
The Kitty Hawk was named in honor of the 100th anniversary of the Wright Brothers first flight, and was designed to compete in the 2002/2003 AIAA/Cessna/ONR Design/Build/Fly contest held in Ridgely River MD, in April of 2003. The objective was to fly two different missions: a missile decoy mission in which the aircraft carried a large external payload, and a sensor deployment mission in which the aircraft remotely deposited a payload on the runway. The mission score also depended on a timed task in which the aircraft which was initially stored in a 4'x2'x1' box, had to be assembled as quickly as possible. Aircraft were subject to several design constraints such as runway length, wing span, battery type and size, motor type, etc. The Orange team finished in 6th place overall at the contest.
The Airplane The Team Multimedia Contest Results Sponsors
Specifications
Wing
Wingspan: 8 ft.
Wing Area: 9.38 sq. ft.
Aspect Ratio: 6.75
Airfoil: Eppler 423
Fuselage
Length: 3 ft. main, 5.75 ft with tail boom extended
Width: 7 in
Height: 7.5 in
Propulsion
Motor: Astro 640S geared 3.1:1
Controller: Astro 204D
Fuel: 24 SR2400 NiCd batteries in series
Propeller: 20 in
Weights
Empty Weight (without batteries): 10.38 lb
Battery weight: 3.24 lb
Payload weight: 5 lb (internal)
Gross weight: 20 lb (including external payload)
Features
Pneumatic main brakes
Retractable boom tail
"V" tail
Remote control "bomb-bay" style payload release
Composite carbon sandwich panels for fuselage, carbon tailboom
Custom made Plexiglas squirrel cage internal 5 lb payload with hamster wheel.
Performance
Takeoff distance at full gross weight: <120 ft
Stall speed at full gross weight: 33 ft/sec
Max rate of climb at full gross weight: 6 ft/sec
The OSU Orange design team was led by a Chief Engineer, and divided into three primary groups: Aerodynamics/Stability and Control, Propulsion, and Structures.
Chief Engineer: Catie Roy
Aerodynamics / Stability and Control
Andy Gardos (Lead)
Valerie Barker
Propulsion
Brandon Blair (Lead)
Michael Duffy
Phung Ly
Structures
Aaron Wheeler (Lead)
Don Carkin
Catherine Higgins
Patrick Lim
Kuniko Yamada
Carin Bouska
Pilot: Dan Bierly
Spotter: Ronnie Lawhon
Faculty Advisor: Dr. Andrew S. Arena, Jr.
Assistant: Joe Conner
*(The above team roster does not include all people involved in the project)
Team Logo:
Team Mascot:
"Trogdor the Burninator"
Memorable Quotes:
"Add majestic lines...for majesty."
Video
It is recommended that you right click on the link and use "Save Target as..." to download the video to your computer before playing.
First Prototype flight video (35MB)
Team Video: The following music video introduces the team, and highlights the development and testing of the aircraft.
Full size version 501MB Small Version 26MB
Pictures
(Hover cursor over any thumbnail on this page for a description)
This is the final presentation made by the OSU Orange team
Orange Team Presentation Brochure
Teams were required to select two missions to fly at the contest, and the flight score from each was added together to achieve the overall flight score. The three missions were:
Missile decoy: A 5 lb block payload was carried internally, and a large external cylindrical payload was also carried. The external payload was a 6 in diameter, 3 in tall enclosed PVC pipe that had to stand off a minimum of 3in from the fuselage. The difficulty factor was highest for this mission.
Sensor deployment: The 6in x 6in x 12in 5 lb internal payload had to be flown twice around the course, and dropped on the runway after coming to a complete stop. The aircraft then had to take off and fly another two laps of the course. All this had to be done remotely. This mission had the next highest difficulty factor.
Communications repeater: The aircraft had to fly 4 laps of the course with the internal payload and then land. The airplane also had to perform 3 360 deg turns for each lap instead of one. This mission had the lowest difficulty factor.
The mission score also depended on a timed task in which the aircraft which was initially stored in a 4'x2'x1' box, had to be assembled as quickly as possible.
Flight score was calculated as follows, and summed for two missions:
Difficulty Factor
Mission Flight Time + Aircraft Assembly Time
RAC was a "Rated Aircraft Cost" which penalized many aspects of the design. It included penalties for design parameters such as; aircraft empty weight, engine power, wing area, etc. A link to the complete rules may be found below.
Overall score was calculated by summing the two best flight scores, multiplying by written report score, and dividing by the RAC.
Some of the more challenging constraints on the designs included:
120 ft short field takeoff distance
Brushed electric motor using NiCd batteries
High drag due to external payload of mission 1
Reliable remote control release of payload in mission two. The mission required a well designed release system, as well as brakes, in order to drop the payload in the prescribed area.
Speed assembly of the aircraft.
Aircraft must be lifted at the wing tips at full gross weight
OSU Team Orange Score Summary
Report Score: 90.5
Flight Score: 0.83 (OSU Orange chose missions 1 and 2 for the higher scoring potential.
Assembly time: 28 seconds
RAC: 10.24
Total Score: 7331.55
Overall Place: 6th
The following sponsors contributed to the project. The OSU Orange team greatly appreciates their support, and considers them members of our team. Without their support, the project would not have been possible.
Aero Services, Inc.
Chaney
Ditch Witch
El Chico
Industrial Rubber
Mercruiser
NASA Oklahoma Space Grant Consortium
OGE
Peascock
OSU Student Government Assoc.
Sally McGreevy
Sullivan
Westex
Wilcox
Whitehead