The Kaman KSA-100 SAVER (Stowable Aircrew Vehicle Escape Rotorseat) is an American aircraft-stowable gyroplane escape device designed and built by the Kaman Aerospace Corporation for the United States Navy.
Designed to be used in naval combat aircraft to deploy as part of the ejection sequence, only one was built and it did not enter service.
The United States Navy Air Development Center awarded a number of contracts to aerospace companies to find a method for ejected aircrew to escape from the scene of the crash.
[1] Kaman proposed a turbofan powered gyroplane it called the Stowable Aircrew Vehicle Escape Rotorseat or SAVER.
After an additional two seconds, the turbofan would run up to full power and the seat would fly as a gyroplane.