CONTROLLABILITY OF THE X-15 RESEARCH AIRPLANE WITH INTERIM ENGINES DURING HIGH-ALTITUDE FLIGHTS
Calibration of solar cells using high-altitude aircraft
Space calibration of standard solar cells using high-altitude balloon flights.
Summary of High-Altitude and Entry Flight Control Experience with the X-15 Airplane
Summary of high-altitude and entry flight control experience with the X-15 airplane
High-altitude hypersonic flow effects on the lateral range capability of entry vehicles.
Further Assessment of Clothing Combinations for Protection at an Altitude of 75,000 Feet
ER-2: Flying Laboratory for Earth Science Studies
Condensation trails : where they occur and what can be done about them
High-altitude cooling I : resume of the cooling problem
High Altitude Aerodynamic Platform Concept Evaluation and Prototype Engine Testing
Structural Sizing of a Solar Powered Aircraft
NASA Earth Research-2 (ER-2) Aircraft: A Flying Laboratory for Earth Science Studies