XHRH | |
---|---|
Role | Cargo helicopter |
National origin | United States |
Manufacturer | McDonnell Aircraft |
Status | Cancelled; mockup phase only |
Primary user | United States Marine Corps |
Number built | 0 |
The McDonnell HRH, company designation Model 78, was a 1950s transport helicopter proposal for the United States Marine Corps (USMC) by McDonnell Aircraft, designed to operate from Commencement Bay-class escort carriers.