In 1956, Kaman began to diversify as an aerospace subcontractor of McDonnell Douglas, Grumman and others. In the mid-1960s Kaman diversified outside of the aerospace industry, using the expertise Kaman had gained in composite materials and the end of the need for skilled woodworkers to craft wooden rotor blades. Charles Kaman, a guitarist as well as an aerospace pioneer, worked with his engineers and other musicians to create the round-backed, composite-body Ovation guitar, which revolutionized the guitar industry and led to the eventual creation of Kaman Music. Kaman Music is an independent distributor of musical instruments and accessories, and a major producer of guitars and guitar parts and accessories.
Tomahawk — A Seasprite modified with stub wings and a pair of twin guns side-by-side under the nose. Kaman's proposal for the US Army 's interim gunship helicopter between the AAFSS (AH-56) and AAH (AH-64) competitions. Lost to the Bell 209 (AH-1 HueyCobra)
Due to the limited power of its single engine, the Seasprites are modified for the USN into twin turbine helicopters.
US Navy begins LAMPS (Light Airborne Multipurpose System) development to obtain an on board helicopter for escort ships
SAVER — The Stowable Aircrew Vehicle Escape Rotoseat is the first jet-powered autogyro with telescoping rotor blades
The Egyptian Air Force accepts delivery of its 10th SH-2G Super Seasprite for use in anti-submarine warfare missions, completing the order and becoming the first international customer to operate the aircraft.
New Zealand approves purchase of SH-2G(NZ).
Australian SH-2G(A) begins initial flight testing.
U.S. Government purchases 5 K-MAX for Peru.
The 5 Peruvian K-MAX are transferred to the Colombian Army where they are still in service as of 2008.
All Royal Australian Navy SH-2G Seasprite helicopters are withdrawn from service and returned to supplier as budget blew-out and contract specifications unable to be met.