The Design, Construction, and Operation of Airguide 1 and Airguide II by Don Hewes

Softcover. Condition: Good+. 1980.

Electro-Fluidic autopilot systems for homebuilt aircraft.

Donald E. Hewes (1924-1985) was a Langley engineer whose inventions made it possible for humans to land and walk on the Moon. He conceived of what is now the Landing and Impact Research Facility, where the Apollo astronauts trained for six successful Moon landings and where engineers have crashed aircraft in the name of safety and drop tested space capsules to improve water landings for more than 50 years.