Product Description

A synchro-pter (intersecting rotor) is a type of helicopter in which two rotors rotate in opposite directions crossing each other to cancel out reaction torque. This type cancels out the torque generated as a reaction to turning the main rotor, so there is no need for a tail rotor, there is less waste of power, and it is said to be easier to maintain and have better flight balance than two-rotor types such as contra-rotating and tandem types.
Founded in 1945, Kaman designed the HTK-1 (renamed TH-43E in 1962) with cross-rotating rotors, which first flew in 1947 and was adopted by the U.S. Navy, which ordered 29 aircraft. In 1950, the Navy adopted a larger version of the HTK-1, the HUK-1 (renamed UH-43C in 1962), and the Marine Corps adopted the HOK-1 (renamed OH-43D in 1962).

・80 pages
・Soft cover
・Text: English
- Size: 21.6cm x 27.95cm
-Photos: 174 black and white, 8 color
- Illustrations: 51
・Patch images: 15
Commentary by Tommy Thomason and Steve Ginter


Item Size/Weight : 27.9 x 21.5 x 0.7 cm / 318g

Product Specifications

Item series

Naval Fighters

Item code

SGBNF120

ISBN code

9798989950942

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