Mailing List flyrotary@lancaironline.net Message #59361
From: <Lehanover@aol.com>
Subject: Re: [FlyRotary] Re: turbo manifold
Date: Fri, 4 Jan 2013 17:39:48 -0500 (EST)
To: <flyrotary@lancaironline.net>
The same RPM and same blades only means the same HP was applied in both situations. One engine could have 1,000 HP and the other only 150 HP and still produce the same result.
 
It does not mean that all of the available HP was being applied in either case. Typically a more gradual application of throttle will allow improved airflow through the prop disc and un-stalled blades will improve airflow rates (Velocity) and lower the effective angle of attack of the blades, so that additional power may be applied (absorbed). In some cases all the way up to full throttle. In other cases, only allowing the aircraft to accelerate to some speed will lower effective angle of attack enough for the prop to absorb full throttle energy.  
 
The (side exhaust port) Renesis, with zero port overlap is less sensitive to exhaust back pressure than earlier (peripheral exhaust port) rotaries. So, it is a better candidate for turbo charging.
 
Lynn E. Hanover
 
 
 
In a message dated 1/3/2013 4:44:23 P.M. Eastern Standard Time, argoldman@aol.com writes:
Interesting results. If the blades stalled (overpowered) at such a low RPM would it be correct to assume that at that RPM the engine was producing more power than the non Renesis engines at the same RPM with the same prop???

I am so confused... interested also in perhaps turboing the renesis in the future??

Please help

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