The CH-37 transport helicopter, a cute looking one, was used extensively during the Vietnam War

The SIkorsky CH-37 helicopter was commissioned by the U.S. Army in 1956 and has a total of 94 helicopters in service.In appearance, the CH-37 is similar in size to the DC-3 transport aircraft, but is nicknamed the wide-eyed Frog by military fans because of its two large eyes.In service, the helicopter was used extensively in the Vietnam War to carry out transport duties and was an important tool in leapfrog tactics.The HELICOPTER weighs 9.5 tons and has a maximum takeoff capacity of 14 tons. It can fly 233 kilometers at 209 kilometers per hour and reach an effective altitude of 2,650 meters.With a crew of three, the CH-37 is capable of carrying up to 26 soldiers and can be equipped with howitzers and jeeps for different tactical missions.It is equipped with a 907 kg winch crane and a dedicated track for fast loading and unloading.Due to its extensive use in the Vietnam War, the CH-37 helicopter was required to operate at night. For this purpose, it was equipped with dedicated flight equipment and subdivision systems such as automatic stabilization, giving it all-weather combat characteristics.In terms of structural composition, the CH-37 is equipped with all-metal rotors and tail blades, and can be folded.For power, it has a Pratt & Whitney R-2800 piston engine with nacelles on either side of the fuselage, which now looks a bit out of place.Because of its unique appearance, THE CH-37 attracted special attention from American soldiers, who gave it extensive painting, such as green fuselage and big eyes.As a result, the outside world regards the CH-37 helicopter as a big-eyed little frog, which is particularly cute and lovely.Of course, only the land models mentioned above, there are also naval versions, which look like a bunch of frogs swimming in the sky!Notably, the US Navy upgraded the CH-37 helicopter in subsequent developments, introducing other models such as the HR2S-1W early warning helicopter.The aircraft is known to have a mechanical scanning radar called AN/APS-20E, but the design features such as radome have made it even uglier.

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