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 firstname.lastname@example.org
What about R44 blades?