VTOL launching and retrieval systems

• US 4,123,020 A
• Filed: 04/11/1977
• Issued: 10/31/1978
• Est. Priority Date: 02/23/1976
• Status: Expired due to Term

• Current Assignee: Kazimierz Korsak
• Original Assignee: Kazimierz Korsak
• Inventors: Korsak, Kazimierz
• Primary Examiner(s): Barefoot, Galen L.
• Application Number:
  US05/786,683
• Time in Patent Office: 568 Days
• Field of Search: 244/114 R, 244/100 R, 244/115, 244/116, 244/50, 244/64, 180/14 C, 294/67 BB, 294/67 R, 294/67 B, 294/86 R, 269/257, 269/264, 269/267
• US Class Current: 244/116
• CPC Class Codes: B64F 1/00 Ground or aircraft-carrier-deck installations specially adapted for captive aircraft B64F3/00
• CPC Class Codes: B64F 1/125 Mooring or ground handling devices for helicopters
• CPC Class Codes: B64F 1/22 for handling aircraft
• CPC Class Codes: B64U 70/30 for capturing UAVs in flight by ground or sea-based arresting gear, e.g. by a cable or a net
• CPC Class Codes: B64U 80/86 Land vehicles

Abstract

A VTOL launching and retrieval system comprising a single stud type primary landing gear and a mechanical arm equipped with a clamping device arranged to take hold of the VTOL while it is held in upright position using its own flight control system and it is either fully airborne or to some extent supported on its stud. The system allows an orderly transfer of the VTOL motion control from that by means of its flight controls to that by means of the mechanical arm which may be of flexible type, allowing to move the VTOL to stabilize in space its grasping digits or to move the VTOL from the landing site to a hangar.

Claims

1. A VTOL launching and retrieval system using in combination:

(a) a VTOL landing gear comprising in combination a single cylindrical stud having shock absorbing means, the structure of said stud being adequately rugged to withstand the clamping required to fully restrain said VTOL in a vertical direction by friction, without affecting the operation of said shock absorber and

(b) a retrieval means at the landing site having a mechanical arm comprising;

two digits, at least one of which is movable in an essentially horizonal plane from an open position to a closed position to guide said stud into a slot formed by said digits in said closed position;

said mechanical arm further comprising stud clamping jaws, at least one of which is movable in said slot to further guide said stud in said horizontal plane to a predetermined position where it can be clamped by said jaws to fully restrain said VTOL, said combination thereby providing a VTOL retrieval by means of an orderly transfer of the control of the VTOL from that of its own flight control system to the control of said mechanical arm.

2. A VTOL launching and retrieval system set forth in claim 1 in which said mechanical arm having hingedly connected sectors and actuators allowing said arm to flex as required to stabilize said digits in space during VTOL retrieval when they tend to move due to motion of the support of said mechanical arm.