FR2397978A1 - VTOL aircraft with convergent axis rotors - with resultant of rotor action varied in vertical plane parallel to aircraft axis - Google Patents

VTOL aircraft with convergent axis rotors - with resultant of rotor action varied in vertical plane parallel to aircraft axis

Info

Publication number
FR2397978A1
FR2397978A1 FR7722127A FR7722127A FR2397978A1 FR 2397978 A1 FR2397978 A1 FR 2397978A1 FR 7722127 A FR7722127 A FR 7722127A FR 7722127 A FR7722127 A FR 7722127A FR 2397978 A1 FR2397978 A1 FR 2397978A1
Authority
FR
France
Prior art keywords
aircraft
axis
vertical plane
rotors
plane parallel
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.)
Granted
Application number
FR7722127A
Other languages
French (fr)
Other versions
FR2397978B1 (en
Inventor
Andre Schweisch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR7722127A priority Critical patent/FR2397978A1/en
Publication of FR2397978A1 publication Critical patent/FR2397978A1/en
Application granted granted Critical
Publication of FR2397978B1 publication Critical patent/FR2397978B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/22—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
    • B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
    • B64C29/0016—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers
    • B64C29/0025—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers the propellers being fixed relative to the fuselage

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

The aircraft is convertible to fly horizontally or to take off and land vertically. It has two fixed engines with two rotors whose axes converge, and the blade pitch of the one rotor canbe varied independently of that of the other. The rotors are so arranged that the aerodynamic resultant of their action can vary in a vertical plane parallel to their axes and to the lengthwise axis of the aircraft. The line bisecting the angle between the rotor axes can be parallel to the latter axis.
FR7722127A 1977-07-19 1977-07-19 VTOL aircraft with convergent axis rotors - with resultant of rotor action varied in vertical plane parallel to aircraft axis Granted FR2397978A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7722127A FR2397978A1 (en) 1977-07-19 1977-07-19 VTOL aircraft with convergent axis rotors - with resultant of rotor action varied in vertical plane parallel to aircraft axis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7722127A FR2397978A1 (en) 1977-07-19 1977-07-19 VTOL aircraft with convergent axis rotors - with resultant of rotor action varied in vertical plane parallel to aircraft axis

Publications (2)

Publication Number Publication Date
FR2397978A1 true FR2397978A1 (en) 1979-02-16
FR2397978B1 FR2397978B1 (en) 1982-04-16

Family

ID=9193507

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7722127A Granted FR2397978A1 (en) 1977-07-19 1977-07-19 VTOL aircraft with convergent axis rotors - with resultant of rotor action varied in vertical plane parallel to aircraft axis

Country Status (1)

Country Link
FR (1) FR2397978A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808768A1 (en) * 1996-05-22 1997-11-26 Jean Soulez-Lariviere Vertical takeoff and landing aircraft
EP2836428A4 (en) * 2012-04-09 2015-12-16 Frick A Smith Aircraft with freewheeling engine
US9688397B2 (en) 2005-10-18 2017-06-27 Frick A. Smith Aircraft with a plurality of engines driving a common driveshaft

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808768A1 (en) * 1996-05-22 1997-11-26 Jean Soulez-Lariviere Vertical takeoff and landing aircraft
WO1997044241A1 (en) * 1996-05-22 1997-11-27 Soulez Lariviere Jean Aerodyne with vertical take-off and landing
US9688397B2 (en) 2005-10-18 2017-06-27 Frick A. Smith Aircraft with a plurality of engines driving a common driveshaft
EP2836428A4 (en) * 2012-04-09 2015-12-16 Frick A Smith Aircraft with freewheeling engine

Also Published As

Publication number Publication date
FR2397978B1 (en) 1982-04-16

Similar Documents

Publication Publication Date Title
JPS52118108A (en) Turbine rotor structure
MY7800256A (en) Improvements in or relating to helicopter rotor blades
FR2397978A1 (en) VTOL aircraft with convergent axis rotors - with resultant of rotor action varied in vertical plane parallel to aircraft axis
FR1085142A (en) Improvements to aerodynamic surfaces and more particularly to helicopter blades
FR2397976A1 (en) Dirigible balloon with adjustable propellers - has two bladed rotors geared together with pitches independently variable and converging axes
FR2405870A1 (en) Rotor head for helicopter - has coaxial counter-rotating sets of blades of different lengths to reduce deflection
GB607839A (en) Improvements in or relating to gas-turbine power-plants
GB796400A (en) Improvements relating to air intakes for aircraft power plant installations
SU414837A1 (en) FINISHING OF AIRCRAFT WING
CA503927A (en) Arrangement in propellers with variable pitch blades
MELZER et al. Possibilities for jet simulation in the 3 m-wind tunnel of the DFVLR-AVA Goettingen(Jet engine simulation with low speed wind tunnel models for interference drag measurement)
SCHAFFAR et al. Calculation of bang propagation in real atmosphere: Focalization geometry for Concorde ascent law and bang intensity near the longitudinal and lateral extinctions
BLAHA et al. Flight and wind tunnel investigation of installation effects on supersonic cruise exhaust nozzles at transonic speeds(Location effect of power plants on aft-mounted supersonic cruise exhaust nozzles at transonic speeds in flight and wind tunnel)
NIELSEN Aerodynamic characteristics of thin incompressible two-dimensional flexible airfoils, are obtained as functions of attack angle and length of fabric in excess of the chord length
GREUNE et al. Power and speed control for parallel operation of two single-shaft gas turbines in a helicopter application(Power and speed control for parallel operation of two single-shaft gas turbine helicopter engines)
UNTERSTELLER et al. Studies and research on marine hulls working with natural ground effect[Final Report]
LIPOWSKI The rolling moments due to sideslip of five airfoils with various planforms at supersonic speed(Rolling moments of five symmetrical untwisted airfoils of various planform tested in high-speed wind tunnel as functions of angle of attack and angle of yaw)
AU155647B2 (en) Improvements in and relating to operating gear for adjustable propeller type blades in hydraulic turbines or pumps
STERK Nederlandse Vereniging voor Luchtvaarttechniek, Yearbook 1977(Book)
DELFORGE The c-142 role in coin air mobile operations(C-142 high-wing aircraft with four turboshaft engines and tilt-wing deflected slipstream to attain V/STOL capability in COIN operations)
GB787013A (en) Jet propelled aircraft
WILSON Women commercial pilots
AU229702B2 (en) Improvements in or relating to turbine blades
AU147690B2 (en) Improvements in or relating to blades for turbines orthe like
GB864212A (en) Improvements relating to helicopters

Legal Events

Date Code Title Description
ST Notification of lapse