Hello! This is my first build using blueprints, and it ended up pretty well! This took me like 3 days to make. Anyways, here are the control groups. AG 1: Engine 1. AG 2: Engine 2. AG 3: Activates the doors on the side, and you can use trim to open and close them. AG 4: Activates the wing lights. AG 5: activates a system where it enhances the engine speed, or can be used to navigate onthe ground without starting the engines. AG 6: Once you open the doors, you can use this activation group to send out an airdrop. Here is some history. The C-47 differed from the civilian DC-3 in numerous modifications, including being fitted with a cargo door, hoist attachment, and strengthened floor, along with a shortened tail cone for glider-towing shackles, and an astrodome in the cabin roof. During World War II, the armed forces of many countries used the C-47 and modified DC-3s for the transport of troops, cargo, and wounded. The U.S. naval designation was R4D. More than 10,000 aircraft were produced in Long Beach and Santa Monica, California and Oklahoma City, Oklahoma. Between March 1943 and August 1945, the Oklahoma City plant produced 5,354 C-47s.The C-47 was vital to the success of many Allied campaigns, in particular, those at Guadalcanal and in the jungles of New Guinea and Burma, where the C-47 and its naval version, the R4D, made it possible for Allied troops to counter the mobility of the light-traveling Japanese Army. C-47s were used to airlift supplies to the encircled American forces during the Battle of Bastogne in Belgium. Possibly its most influential role in military aviation, however, was flying "The Hump" from India into China. The expertise gained flying "The Hump" was later used in the Berlin Airlift, in which the C-47 played a major role until the aircraft were replaced by Douglas C-54 Skymasters. Here are some pictures.