C-17 Engine Cradle (ETU-117/E)
The engine cradle is designed to secure a Pratt and Whitney PW2040 turbofan engine (military designation F117-PW-100) to various ground support trailers for installation, removal and transport.
It is designed to fit on I-beam rails used on engine transport and engine positioning trailers.
Pictured left is an engine cradle being pushed into place on a PT90 Engine Positioning Trailer prior to an engine change-out on a C-17 Globemaster III aircraft. The US Air Force photo was taken by SSgt Sheila deVera. The airmen shown are from the 8th Expeditionary Mobility Squadron.