[go: up one dir, main page]

WO1996008409B1 - Hinged aircraft ski for improving egress and ingress from an aircraft cabin - Google Patents

Hinged aircraft ski for improving egress and ingress from an aircraft cabin

Info

Publication number
WO1996008409B1
WO1996008409B1 PCT/US1995/011138 US9511138W WO9608409B1 WO 1996008409 B1 WO1996008409 B1 WO 1996008409B1 US 9511138 W US9511138 W US 9511138W WO 9608409 B1 WO9608409 B1 WO 9608409B1
Authority
WO
WIPO (PCT)
Prior art keywords
aircraft
aft portion
flotation apparatus
aft
respect
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1995/011138
Other languages
French (fr)
Other versions
WO1996008409A2 (en
WO1996008409A3 (en
Filing date
Publication date
Priority claimed from US08/305,767 external-priority patent/US5570857A/en
Application filed filed Critical
Priority to JP51022296A priority Critical patent/JP3689427B2/en
Priority to CA002199410A priority patent/CA2199410C/en
Priority to AU36262/95A priority patent/AU684235B2/en
Priority to EP95933725A priority patent/EP0781224A4/en
Publication of WO1996008409A2 publication Critical patent/WO1996008409A2/en
Publication of WO1996008409A3 publication Critical patent/WO1996008409A3/en
Publication of WO1996008409B1 publication Critical patent/WO1996008409B1/en
Priority to NO971166A priority patent/NO309598B1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Abstract

A flotation apparatus, specifically a ski (27), is provided for use on an aircraft (21) for improving the egress and ingress from the aircraft cabin (20). The ski (27) is particularly applicable to helicopters (21) having fixed wheeled landing gear (23). The ski (27) includes a forward portion (55) substantially fixed in a parallel configuration with respect to the longitudinal axis of the helicopter and an aft portion (57). The aft portion (57) is rotatable from a substantially parallel configuration with respect to the longitudinal axis of the helicopter; the aft portion (57) is rotatably attached to the forward portion (55) using a fastener, specifically a hinge means (35). To reconfigure the aft portion (57) into a flight or landing configuration, the operator grasp the aft portion (57) with the grapple hook (77) thereby pulling upward on the aft portion (57) until the aft portion (57) is securely latched to the forward portion (55).

Claims

AMENDED CLAIMS
[received by the International Bureau on 10 April 1996 (10.05.96); original claims 10 and 15 amended; remaining claims unchanged (3 pages)]
longitudinal ridge portions for providing rigidity to the runner portion and for providing a rigid mounting surface for securing the flotation apparatus to the aircraft landing gear and a means for securing the flotation apparatus to a landing gear of the aircraft, the flotation apparatus comprising: a. a forward portion of the flotation device in substantially fixed position with respect to a longitudinal axis of the aircraft; and b. an aft portion, the aft portion which is substantially movable with respect to the longitudinal axis of the aircraft, the aft portion being movable from a landing configuration wherein the lateral flat runner portion of the forward portion and the lateral flat runner portion of the aft portion are substantially co-planar, to an egress and ingress configuration wherein the lateral flat runner portion of the forward portion and the lateral flat runner portion of the aft portion are substantially non-co-planar with said aft portion lower than its position when its flat runner surface is coplanar with the flat runner portion of said forward portion.
11. The flotation apparatus of Claim 10, wherein the aft portion is secured to the forward portion with fastener means, the aft portion being rotatable in an arc from a landing configuration wherein the lateral flat runner portion of the forward portion and the lateral flat runner portion of the aft portion are substantially co-planar, to an egress and ingress configuration wherein the lateral flat runner portion of the
36 forward portion and the lateral flat runner portion of the aft portion are substantially perpendicular to each other.
12. The flotation apparatus of Claim 11, wherein the fastener comprises: a. at least one latch pin secured to an inner surface of one of the two longitudinal ridge portions; b. at least one latch means for receiving the at least one latch pin, the at least one latch means secured to an inner surface of one of the longitudinal raised ridge portions; and c. an interconnector for connecting the plurality of latch means secured to the inner surfaces of the two longitudinally raised ridge portions wherein the interconnector simultaneously releases the latch means, thereby allowing the aft portion of the flotation apparatus to rotate about the fastener means under the force of gravity from the substantially parallel configuration with respect to the longitudinal axis of the aircraft, to the substantially perpendicular configuration with respect to the longitudinal axis of the aircraft.
13. The flotation apparatus of Claim 11 further comprises: a. a plurality of latch pins each secured to an inner surface of each of the two longitudinal raised ridge portions, a plurality of latch means for receiving a plurality of latch pins, a plurality of latch means secured to an inner surface of each of the two longitudinal raised ridge portion; and
37 c. an interconnector connected between the plurality of latch means secured to the inner surfaces of the two longitudinal raised ridge portions, wherein the interconnector simultaneously releases the plurality of latch means, thereby allowing the aft portion of the flotation apparatus to rotate about the fastener means by the force of gravity from the substantially parallel configuration with respect to the longitudinal axis of the aircraft to a substantially perpendicular configuration with respect to the longitudinal axis of the aircraft.
14. A method for improving egress and ingress from an aircraft cabin, comprising the steps of: a. releasing a fastener securing aft portion of a flotation apparatus to a forward portion of the flotation apparatus; and b. rotating the aft portion of the flotation apparatus from a substantially parallel configuration with respect to the longitudinal axis of an aircraft, to a substantially perpendicular configuration with respect to the longitudinal axis of the aircraft.
15. The method of Claim 14, further comprising the steps of: a. reaching from the aircraft cabin to the aft portion of the flotation apparatus; b. grasping an interconnector with a grapple hook; and
PCT/US1995/011138 1994-09-13 1995-08-29 Hinged aircraft ski for improving egress and ingress from an aircraft cabin Ceased WO1996008409A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP51022296A JP3689427B2 (en) 1994-09-13 1995-08-29 Hinged aircraft skis to improve aircraft cabin exit and entry
CA002199410A CA2199410C (en) 1994-09-13 1995-08-29 Hinged ski for aircraft egress and ingress
AU36262/95A AU684235B2 (en) 1994-09-13 1995-08-29 Hinged ski for aircraft egress and ingress
EP95933725A EP0781224A4 (en) 1994-09-13 1995-08-29 Hinged aircraft ski for improving egress and ingress from an aircraft cabin
NO971166A NO309598B1 (en) 1994-09-13 1997-03-13 Hinged skis for planes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/305,767 US5570857A (en) 1994-09-13 1994-09-13 Hinged aircraft ski for improving egress and ingress from an aircraft cabin
US305,767 1996-01-24

Publications (3)

Publication Number Publication Date
WO1996008409A2 WO1996008409A2 (en) 1996-03-21
WO1996008409A3 WO1996008409A3 (en) 1996-04-18
WO1996008409B1 true WO1996008409B1 (en) 1996-06-13

Family

ID=23182257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/011138 Ceased WO1996008409A2 (en) 1994-09-13 1995-08-29 Hinged aircraft ski for improving egress and ingress from an aircraft cabin

Country Status (7)

Country Link
US (1) US5570857A (en)
EP (1) EP0781224A4 (en)
JP (1) JP3689427B2 (en)
AU (1) AU684235B2 (en)
CA (1) CA2199410C (en)
NO (1) NO309598B1 (en)
WO (1) WO1996008409A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2902079B1 (en) * 2006-06-09 2008-08-29 Lisa Airplanes Sas MOTORIZED AIRCRAFT WITH HYDRODYNAMIC AND AERODYNAMIC MIXED STRUCTURE FOR TAKING AND LANDING ON WATER, SOIL OR SNOW
FR2953197B1 (en) 2009-11-30 2012-02-24 Eurocopter France STAND FOR PROTECTING A STRUCTURAL ELEMENT OF AN AIRCRAFT, AIRCRAFT PROVIDED WITH SUCH A STAND, AND ANTI-TIPPING METHOD USED BY THE SAME
EP2340996B1 (en) * 2009-12-30 2012-02-08 AGUSTAWESTLAND S.p.A. Retractable helicopter landing gear
US20190161141A1 (en) 2017-11-29 2019-05-30 Ryan D. Aberle Snowmobile ski dampener
CN109774926B (en) * 2019-01-22 2022-05-03 南京航空航天大学 Wheel and skid combined take-off and landing device of hypersonic vehicle
CN111516862B (en) * 2020-04-15 2021-08-06 南京航空航天大学 A sled-type landing device with rectification and auxiliary wheel suitable for narrow retractable space

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1876158A (en) * 1930-12-08 1932-09-06 Winter Leonard Willoughby Landing and beaching gear for aircraft
US2574404A (en) * 1947-03-27 1951-11-06 Inv S Soc D Aircraft retractable landing skid
US2548832A (en) * 1948-09-17 1951-04-10 Curtiss Wright Corp Combined landing gear door and fluid foil
US2686023A (en) * 1952-02-29 1954-08-10 Clifford C Larry Aircraft ski
US2673698A (en) * 1952-03-14 1954-03-30 Eriksson Carl Erik Sectional aircraft pontoon
US3128065A (en) * 1961-05-15 1964-04-07 Wesley K Landes Heavy duty aircraft ski
FR2299212A1 (en) * 1975-01-28 1976-08-27 Messier Hispano Sa SKI DEVICE FOR MOUNTING ON A TANDEM WHEEL LANDING GEAR

Similar Documents

Publication Publication Date Title
US4267987A (en) Helicopter airborne load systems and composite aircraft configurations
US4678141A (en) Aircraft launcher and retriever
US5975464A (en) Aircraft with removable structural payload module
US4736910A (en) Aircraft with interchangeable fuselage
CA2015859A1 (en) Landing pylon
US2634656A (en) Rotary bomb bay door with bomb releasing means
US3374972A (en) Hinged end section for cargo aircraft
CA2237846A1 (en) Multi-service common airframe-based aircraft
GB2187155A (en) Aircraft supporting means
US4027835A (en) Airplane
EP0980823A3 (en) Fuselage nose for aircraft flight control
WO1996008409B1 (en) Hinged aircraft ski for improving egress and ingress from an aircraft cabin
US5465923A (en) Vertical take-off/landing of aircraft
CA1130770A (en) Tail rotor control cable-pylon fold accommodation
CA2199410A1 (en) Hinged ski for aircraft egress and ingress
CA2212789A1 (en) Suspendible carrier for carrying multiple cargo loads by helicopter
US4824047A (en) Hang glider launch vehicle
CN216611615U (en) Unmanned aerial vehicle material throwing mechanism and unmanned aerial vehicle
EP0190138A1 (en) Aircraft with interchangeable fuselage modules
US2683005A (en) Airplane with detachable cargo compartment
US20090302160A1 (en) System for refuelling operations
EP0131607A1 (en) Glider
US2615659A (en) Aircraft enclosure jettison system
CN221115220U (en) Unmanned aerial vehicle conveying device for agricultural products
GB2120621A (en) Aircraft wing