Lockheed L-1249 Super Constellation adalah versi pesawat bertenaga turbin sayap rendah (low wing) dari keluarga pesawat Lockheed Constellation. Dibuat masing-masing pada tahun 1954 dan 1955, pesawat ini digunakan sebagai prototipe untuk pesawat angkut militer bertenaga turbo masa depan bagi Angkatan Udara Amerika Serikat dan Angkatan Laut Amerika Serikat.

Pesawat ini berumur sangat pendek dan kerangka pesawat kemudian digunakan untuk membangun L-1049 Super Constellation.

Referensi 

 Breffort, Dominique. Lockheed Constellation: from Excalibur to Starliner Civilian and Military Variants. Paris: Histoire and Collecions, 2006. Print. ISBN 2-915239-62-2

 The Characteristics Summary  and the Standard Aircraft Characteristics  of the R7V-2 from Alternate Wars.com
 Characteristics Summary for the YC-121F , available on alternatewars.com 
 Lockheed Constellation Survivors - A website that explains information and whereabouts of surviving Constellations of all variants. The fates of the four L-1249 aircraft are mentioned in the Q&A section of the website.
 1000 Aircraft Photos - Lockheed 1249A-94-75 YC-121F Constellation - A photograph of the second YC-121F delivered to the U.S. Air Force. Below the image is a small detailed summary on the L-1249A.
 Zoggavia - Lockheed 1951-1960  - A link which includes photographs and brief summaries of Lockheed aircraft from 1951 to 1960, including the YC-121F and R7V-2.

Pesawat terbang Lockheed
Pesawat terbang sayap rendah