Importance

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Abstract

A variable bodied helicopter is disclosed. The helicopter is of a type that has tandem lifting rotors (1, 2) with a body consisting of a front section (3) and a rear section (4). The rear section of the body is narrower than the front section of the body, thereby allowing the rear section to travel into the front section. Channelled railings (5, 6) attached to the front section of the body firmly hold the rear section through railings (7, 8) attached to the rear section. These railings guide the movement of the rear section relative to the front section. A shaft consisting of two sections (9, 10) is used to synchronize the tandem arranged rotors. The narrower section (9) of the shaft slides into the wider section (10) of the shaft when the rear section of the body moves into the front section of the body. Bearings (11, 12, 13) support the synchronizing shaft. One bearing (13) is firmly fixed to the front section (3) of the body while another bearing (12) is attached to the rear section (4) but is linked to the front section thus causing it to move against the rear section when the rear section moves relative to the front section. Another bearing (11) positioned on the rear section (4) is linked by a telescopic connection (14) to the front section of the body so that it is placed at the optimum position on the rear section as the body expands from a compressed state.

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First Claim