Rotorcraft
Sikorsky buys Keystone, adds aftermarket services
Last month, Sikorsky Aircraft announced an agreement to acquire privately owned Keystone Ranger Holdings for an unspecified sum.

Last month, Sikorsky Aircraft announced an agreement to acquire privately owned Keystone Ranger Holdings for an unspecified sum. Previously backed by investors that included Meridian Venture Partners, Keystone specializes in engineering, completion and technical support for commercial helicopters, and aeromedical flight operations. Closing was expected by year-end, subject to government approval, as well as certain other conditions. Keystone is expected to continue to operate under the Keystone name as a wholly owned subsidiary of Sikorsky.