The Rockair technique (research rocket launched from aircraft) was developed by the Office of Naval Research and the University of Maryland. A 2.75-inch FFAR rocket was fired from a Navy F2H-2 Banshee aircraft to an altitude of approximately 60,000 m.

From NASA SOUNDING ROCKETS, 1958-1968 - A Historical Summary, NASA SP-4401, 1971, by William R. Corliss

If balloons were so useful in stretching rocket performance, why not try high-altitude aircraft? Thus, the "rockaire" concept was born. Actually the rockaire concept was first suggested by Hermann Oberth in his 1929 classic Wege zur Raumschiffahrt. The Air Force studied the idea on and off from 1947 on. The Navy did the same and finally tried the idea out on August 16, 1955, using a Navy F2H2 aircraft off Wallops Island. An altitude of 54 864 m (180 000 ft) was reached with a 69.9-mm (2.75-in.) folded-fin aerial rocket (FFAR) of Korean vintage. The Air Force launched theirs in 1956. In general, however, the rockaire concept never achieved the popularity of the rockoon. Apparently no important scientific rocket research was carried out with rockaires, in contrast to the hundreds of rockoons fired during the 1950s.

Manufacturer: ONR, University of Maryland. Launches: 5. Failures: 4. Success Rate: 20.00%. First Launch Date: 1955-08-16. Last Launch Date: 1955-11-01. Launch data is: complete. Apogee: 50 km (31 mi). Liftoff Thrust: 3.000 kN (674 lbf). Core Diameter: 0.0700 m (0.2290 ft). Total Length: 1.20 m (3.90 ft).