METHOD OF REALIZATION OF MODE OF FLOW OVER LIFTING PROPELLER BLADES AND AERO-SPACE SYSTEM WITH VARIABLE-DIAMETER LIFTING PROPELLER AT SUPERSONIC FLOW OVER BLADES Russian patent published in 2007 - IPC B64C27/467 B64C27/48 B64C29/02 B64C37/02 

Abstract RU 2297949 C2

FIELD: aviation.

SUBSTANCE: proposed method is used for forming flow over propeller blades at thickness ratio of 4-6% by increase of rotational speed of lifting propeller to magnitude of tip speed exceeding the sonic speed. Aero-space system includes aircraft stage 1, space stage 2 and alighting column with swivel brackets. Fuselages of stages are interconnected by means of coupling unit 3. Aircraft stage 1 has fuselage, wing 4, high-lift devices, power plant 7 and coaxial propeller. Each blade of coaxial propeller is mounted in hub by means of flexible spar 9 wound on drum which is connected with hub by means of clamp and lag hinge. Fuselage is provided with swivel stops of alighting gear. Space stage 2 has payload container, elevator and rudder.

EFFECT: reduced mass.

3 cl, 4 dwg

Similar patents RU2297949C2

Title Year Author Number
MAIN ROTOR 1994
  • Privalov Leonid Valentinovich
RU2093418C1
VERTICAL TAKE-OFF AND LANDING AIRCRAFT WITH ROTOR WITH FOLDING RETRACTABLE BLADES 2019
  • Zolotukhin Viktor Antonovich
RU2727787C1
VERTICAL TAKE-OFF AND LANDING SEAPLANE WITH A MAIN ROTOR WITH FOLDING RETRACTABLE BLADES 2021
  • Zolotukhin Viktor Antonovich
RU2781817C1
SUPERSONIC LOW-VISIBILITY AIRCRAFT-HELICOPTER 2018
  • Durov Dmitrij Sergeevich
RU2692742C1
HELICOPTER ROTOR, ROTOR BLADE 2008
  • Korzh Pavel Nikolaevich
  • Korzh Nikolaj Afanas'Evich
RU2374137C1
UNMANNED HIGH-SPEED HELICOPTER-AIRPLANE 2017
  • Durov Dmitrij Sergeevich
RU2664024C2
UNMANNED HEAVY HELICOPTER AIRCRAFT 2017
  • Durov Dmitrij Sergeevich
RU2667433C2
UNMANNED HIGH-SPEED HELICOPTER-AIRPLANE 2017
  • Durov Dmitrij Sergeevich
RU2653953C1
HIGH-SPEED HELICOPTER-AMPHIBIOUS AIRCRAFT 2017
  • Durov Dmitrij Sergeevich
RU2655249C1
MULTI-PURPOSE DECK HELICOPTER AIRCRAFT 2017
  • Durov Dmitrij Sergeevich
RU2652861C1

RU 2 297 949 C2

Authors

Privalov Leonid Valentinovich

Dates

2007-04-27Published

2004-07-19Filed