four 5,500 hp Pratt and Whitney YT34-P-12A
Wing span was reduced 4.4 ft.
Max speed at 20,000 ft was 506 mph. Compared to a model 1049G of 370 mph at 20,000 ft.
Four were built for the Navy, BuNo 131630, 131631, 131660 and 131661.
131660 and 131661 were transferred to the Air Force as YC-121F.
The following information is from Joe Baugher's web site.
131630 was broken up Nov 1956.
131631 was modified by Rohr as a testbed for the Allison 501 turboprop for the Electra. Nicknamed ‘Elation’. Later fitted with T34-P-6 engines. Accident Jul 30, 1959 at Palmdale AFB CA. Bought by California Airmotive Corp. 05.60 reg as N7938C (NTU). For spares 05.60. Fuselage used to rebuild TWA L1049G MSN 4684 N7121C that was damaged at Idylwild APT, NYC Jun 25, 1959, resulting in unusual configuration with round windows. Broken up at Miami, FL 1972-73.
131660 to USAF as 53-8157
131661 to USAF as 53-8158. Back to Lockheed for engine test work
The following photo is US Air Force YC-121F, 53-9157, but it still has its US Navy BuNo, 131660, on its tail.
Some had tip tanks, some did not.
