Helicopter blade aerofoil

United States of America Patent

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Oct 5, 1999
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N/A
app pub date
Feb 13, 1998
filing date
Feb 14, 1997

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Expired

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Abstract

The coordinates defining the upper surface, lower surface, leading edge configuration and center of circle for a helicopter blade airfoil are given to increase maximum lift coefficient and lift-to-drag ratio, and to reduce noise level.

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Patent Owner(s)

Patent Owner	Address
ADVANCED TECHNOLOGY INSTITUTE OF COMMUTER-HELICOPTER LTD	2 KAWASAKI-CHO KAKAMIGAHARA-SHI GIFU

International Classification(s)

B63H:MARINE PROPULSION OR STEERING

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Aoki, Makoto	Kakamigahara, JP	185	3294
Nishimura, Hiroki	Kakamigahara, JP	12	218
Yamakawa, Eiichi	Kakamigahara, JP	18	488

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Helicopter blade aerofoil

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09023699

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PATENT NO	5961290
SERIAL NO	09023699
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