CH 46 Sea Knight VS CH 47 Chinook (A Comparison) F-16 vs. F-15- (U.S. Air force) Cruiser VS Destroyer: (Looks, Range, and Variance) By Author Logan. The unit cost of a CH-47F is $37.94 million, according to the US Department of Defense. The airframe costs $24.08 million, the two T55-GA-714A engines cost $2.32 million -- $1.16 million each With a per-unit cost of $32 million, the CH-47F Block II is also far more affordable in terms of initial acquisition compared to the CH-53K, which has a flyaway cost of $91.6 million per aircraft. The CH-47 Chinook, Boeing's offering in the German and Israeli heavy lift competitions. Wikipedia. The German solicitation alone is worth many billions of dollars, encompassing the purchase of 44 The CH-46 and the CH-47 Chinook are very similar-looking aircraft and seem to serve similar purposes - only though for different branches of the U.S. military. What are the differences between the CH-46 and the CH-47? Why does the military run both instead of settling on one? The Boeing CH-47 Chinook is an American twin-engined, tandem rotor, heavy-lift helicopter developed by American rotorcraft company Vertol and manufactured by Boeing Vertol (later known as Boeing Rotorcraft Systems). The CH-47 is one of the heaviest lifting helicopters that are Western. Chinook, its name, is from the Native American Chinook The Marines’ primary lift at Hue, the CH-46 Sea Knight—known as the “Phrog” for its head-on appearance—began life as the YHC-1A, one of two proposed medium lift transports for the Army. The Army chose the larger, more powerful YHC-1B, which became the CH-47 Chinook. When the Marine Corps required a gas turbine–powered replacement The effort to replace the CH-53G had already run into some problems after its official launch in December 2017, at which point the CH-47 and CH-53K were identified as the only candidates. The Boeing CH-47D Forward Cargo Hook installed on 90-00183. The Dangers of Slinging It The wrong way to handle a CH-47 Center Cargo Hook - it will rotate even further up and forward, but will damage the manual release cable which can lead to lost loads and disastrous consequences. CH-46 Pictures; CH-46 vs CH-47: HH-46D Sea Knight Sea Knight. US Marine Corps HH-46D Search and Rescue (ASAR) As of early 2007 the US Marine Corps operated three HH-46D to provide heliborne SAR xlLG.