The Pterosoar is a plane designed to break several official FAI world aviation endurance and range records in the F5COMB category (Any sources of current, 5kg limit).  The plane was designed around a Proton Exchange Membrane fuel cell designed and built by Horizon.  To date the airplane has set a world record for distance to point and return.

The Pterosoar was a joint project with California State University Los Angles, Horizon Fuel Cell, and Oklahoma State University as sponsors

Specification List: 

Wingspan:              14.5 ft

Aspect Ratio:          20

Fuselage Length:    6.7 ft

Empty Weight:        4.75 lb

Gross Weight:        10.4 lb

Cruise Power: 60 Watts
Fuel Cell Energy Capacity: 1000 WH
Stored Hydrogen: 62 grams


Endurance: 16.7 Hours
Range: 300 Miles


  •          Ram air inlets located forward of the wing to provide cooling for the Fuel Cell
  •          Lightweight composite molded construction
  •          4 piece wing for ease of transportation

Hydrogen Fuel Cell:

Horizon Fuel Cell Proton Exchange Membrane Fuel Cell using Hydrogen Gas

Maximum Power Output:  150W

Fuel Cell Weight:  1.0 lb

Hydrogen Tank Weight: 4.0lb

Maximum Tank Pressure: 4450 psi 

Team Info: 

Oklahoma State University Team:

Design and Fabrication of Aircraft:

Dustin Gamble

Ryan Paul

Valentin Sanchez

Dr. Andrew Arena

Test Pilot:

Dan Bierly

California State University LA Team:

Provide and maintain the Hydrogen Fuel Cell

Charles Chaing

Christopher Herwerth

Alan Ko

Shigeru Matsuyama

Matthew Walters

Sang Bum Choi

Dr. Maj Mirmirani

Horizon Fuel Cell Technologies

Design and Construction of Hydrogen Fuel Cell

Jin Placido

Arthur Koschany

Geroge Gu

Lowe Todd 

Taras Wankewycz

Record Attempt Pilots:

Jay Replogle

Jerry Krancock

Contest Summary: 

 Point and Return    Endurance


To attempt an official point and return mission, the proposed  launch/landing point, and the turn-around point must be stated before the flight, and signed by the FAI official.  Credit is only given for this distance, and the aircraft must land within a certain distance of the proposed point.

 World Record Attempt Wednesday, September 12, 2007 at 7:30AM PST

The morning of June 2nd was chosen for the light wind conditions predicted.  The flight was to be primarily a range test at partial fuel, since the range capabilities of the airplane had not been fully demonstrated. 

Mission Route Map

After completing preflight checks and signing all appropriate FAI paperwork with the assistance of the FAI observer, Darrell Martin.

The performance of the airplane was better than predicted, and within 15 minutes of launch, the capabilities of the airplane were known.  Landing occurred approximately 3 hours later on a dirt road where which the plane was launched.

Pterosoar flight on September 12, 2007:      120.05 km


Endurance Mission



On hold pending safety approvals in California


Oklahoma State University

Link back to Cal State L.A. CSULA

    Oklahoma NASA Space Grant Consortium

    California NASA Space Grant Consortium

Research and Project
Research Category: 
Proton Exchange Membrane Fuel Cell Record Plane
Point Return
Take Off Climb Cruise