Cammacorp was set up in 1979 to oversee the CFM International CFM56 retrofit programme for the McDonnell Douglas (MDC) DC-8 Series 60, and the company no longer exists. Other partners in the programme were MDC, CFMI, and Grumman Aerospace, the latter being responsible for the manufacture of the engine pods, cowlings and pylons.
Between 1981 and 1986, 110 aircraft were retrofitted, with the modified aircraft dubbed the Series 70 (the variants were designated DC-8-71, -72, and -73). Most are now freighters.
The CFM56-2C5 engines provided the -70 with fuel-consumption improvements of up to 23%. Take-off, climb, cruise-altitude and range performance were also significantly improved.
For aircraft details see McDonnell Douglas entry.
Company no longer exists
Source: Flight International
