This is a model of unknown scale of the Delta B, a three-stage liquid-fuel rocket developed by Douglas Aircraft for the National Aeronautics and Space Administration (NASA), using as its first stage a modified first stage from the Thor intermediate-range ballistic missile. NASA used the rocket to launch mostly meteorological satellites beginning in December 1962.
The model's manufacturer is unknown. John and Cynthia Heyde donated it to the museum.
Gift of John S. and Cynthia H. Heyde.