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Date: Fri, 20 Jul 2007 20:39:11 -0500
From: Charlie England <ceengland@bellsouth.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: NSI subi cooling ...
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Bobby J. Hughes wrote:
>  
> What airframe is it?   
> Glastar 2 place
>   
> What is the cruise speed? 
> I think he said 130 knts\ 60% power
> 
> What is the fuel burn at that speed? 
> About 7 per hour. 
> 
> 
> 
> He also said he had plenty of engine left but the plane would not fly
> any faster.

7galx6lb per gal=42 lb/hr
at .45 lb per hp/hr, 42/.45=93.3 hp (BSFC might not be that good)

If the 60% is real, that's 155.5 max hp

Thanks,

Charlie

> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> Behalf Of Charlie England
> Sent: Friday, July 20, 2007 5:10 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: NSI subi cooling ...
> 
> Bobby J. Hughes wrote:
>>  
>> I visited with a local NSI subi builder here in Austin on Monday. This
> 
>> guy has the most hours on a NSI conversion. About 735 hours in the 
>> last two years. He has had a couple of failure due to assembly errors 
>> by NSI in their last days. His engine is a modified 4 cylinder turning
> 
>> about 200 HP. The package uses a single radiator with 735ci core and a
> 
>> small oil to water cooler. He has closed the space between the two air
> 
>> duct feeds to the radiator and attempted to radius the bends in the 
>> lower cowl ducts. I am amazed he is cooling as well as he is. He 
>> reports climb temps around 195-200 and cruise at 180 on hot days.
>>  
>> Bobby
>>  
> 
> There might be a simple explanation for his ability to cool.
> 
> What airframe is it?     
> What is the cruise speed? faster. 
> What is the fuel burn at that speed? 
> 
> Thanks,
> 
> Charlie
> 
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