development of advanced composite rotor blades R22
feel free to contact us ms@robinsonhelicopters.org

 

mtnhawker
Member Since : 2014
Posts(1)
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development of advanced composite rotor blades R22

03-02-2014 12:00:35

I am seeking feasibility input from R22 owners, mechanics and flight instructors to the idea of aftermarket development of an advanced set of rotor blades for the R22. As many of you have read (let me know if you would like links to these reports), the R22 has many reports of unanswered rotor separation even with the 2200 hour life and the 12 year required corrosion replacement. With over 4000 flying, it is a great aircraft but time has come to consider upgrading this critical component.  With a rotor blade upgrade to a composite construction, the flight characteristics of the R22 would improve in both performance and safety with added longevity. Virtually all helicopters since the 70's have used cambered and composite blades and there are no recorded fatigue failures of these blades. A cambered air foil (vs symmetrical) will allow optimization of the span wise aero performance resulting in lower drag at higher lift coefficients. A development program like this will take about 18 months and cost about $1.5M which would be recouped through amortization in blade cost. The blades would cost about 10-15% higher but increased life span should offset this cost. My team consists of a very experienced staff of engineers with aircraft and helicopter design, testing and manufacturing experience. Please comment your interest to me and pass this info on. Brian Lundy mtnhawker@gmail.com       

Replies

13snoopy
Member Since : 2007
Posts(339)
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03-08-2014 11:45:05
I am seeking feasibility input from R22 owners, mechanics and flight instructors to the idea of aftermarket development of an advanced set of rotor blades for the R22. As many of you have read (let me know if you would like links to these reports), the R22 has many reports of unanswered rotor separation even with the 2200 hour life and the 12 year required corrosion replacement. With over 4000 flying, it is a great aircraft but time has come to consider upgrading this critical component.  With a rotor blade upgrade to a composite construction, the flight characteristics of the R22 would improve in both performance and safety with added longevity. Virtually all helicopters since the 70's have used cambered and composite blades and there are no recorded fatigue failures of these blades. A cambered air foil (vs symmetrical) will allow optimization of the span wise aero performance resulting in lower drag at higher lift coefficients. A development program like this will take about 18 months and cost about $1.5M which would be recouped through amortization in blade cost. The blades would cost about 10-15% higher but increased life span should offset this cost. My team consists of a very experienced staff of engineers with aircraft and helicopter design, testing and manufacturing experience. Please comment your interest to me and pass this info on. Brian Lundy mtnhawker@gmail.com     

What about R44 blades?
mlagersson
Member Since : 2013
Posts(13)
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05-07-2014 12:23:43
+1


What about R44 blades?
jabr800
Member Since : 2008
Posts(134)
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06-13-2015 06:56:41
Any updates on this?
Thanks.