Aircraft List

The NASA Airborne Science Program provides a unique set of NASA supported aircraft that benefit the earth science community. These manned and unmanned aircraft carry the sensors that provide data to support and augment NASA spaceborne missions.

Reminder: All investigators with approved or pending proposals from the Research Opportunities in Space and Earth Sciences (ROSES) announcements that have a requirement for a NASA Airborne Science platform/instrument, must submit a Flight Request. The Flight Request is also the method to acquire an estimate if your proposal requires a cost estimate for Airborne Science support. However, for investigators proposing to participate on large, multi-aircraft experiments, a single Flight Request will be submitted for each mission by the Project Manager or Project Scientist. The Science Operations Flight Request System (SOFRS) can be reached directly at

Non-NASA Aircraft
NASA instrumentation may fly on non-NASA Federal aircraft as well as academic and commercial platforms for which agreements for access by SMD investigators are in place, in process, or have recently been approved by NASA Aviation Management as airworthy and safe to operate. For more information, please review the current ASP Call Letter for further requirements and guidance. Please note that in addition to filing the required Flight Request, investigators are responsible for contacting vendors to determine if the platform meets the requirements of the proposed scientific investigation. It is also the responsibility of the investigator to ensure that before any preliminary test flights or actual data collection flights utilizing NASA personnel, instruments or funds occur, all vendors successfully complete a NASA airworthiness/flight safety review in accordance with NASA Aviation Safety Policy for Non-NASA Aircraft.

Twin Otter International

Twin Otter International Ltd. (TOIL) operates a fleet of DHC-6 (Twin Otter) research aircraft. The twin otter is a STOL twin turboprop aircraft ideally suited for medium lift, slow flight. TOIL’s aircraft are equipped with a variety of modifications included; nadir and zenith ports, centerline hard points (nose and main fuselage), NATO wing hard points (4 stations), and up to 8400W science equipment power. TOIL aircraft have been integrated with over 50 different type instruments in support of several USG agencies worldwide.

Twin Otter International
Conventional Aircraft
5.0 hours (payload and weather dependent)
Useful Payload: 
4,500 lbs
Gross Take-off Weight: 
12,500 lbs
Onboard Operators: 
Max Altitude: 
25,000 MSL
Air Speed: 
65 knots
2,000 Nmi
5600W (200A MOD) OR 8400W (300A MOD)