Received-SPF: pass
 receiver=logan.com; client-ip=205.152.59.48; envelope-from=atlasyts@bellsouth.net
Mime-Version: 1.0 (Apple Message framework v750)
In-Reply-To: <list-1180309@logan.com>
References: <list-1180309@logan.com>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Message-Id: <2550FCBF-7A5D-41C1-B385-4218055A9085@bellsouth.net>
Content-Transfer-Encoding: 7bit
From: Bulent Aliev <atlasyts@bellsouth.net>
Subject: Re: [FlyRotary] Re: Engine rpm was  [FlyRotary] Life without a turbo....
Date: Fri, 16 Jun 2006 13:32:03 -0400
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>


On Jun 16, 2006, at 8:59 AM, Ed Anderson wrote:

> >>
>>> Buly, I have no experience with an IVO, but I do want to remind  
>>> you  that maximum static rpm does not NECESSARILY mean you are  
>>> getting  adequate thrust.  I recall one individual who concluded  
>>> that  maximum engine rpm = max thrust.  He reduce the pitch until  
>>> he had  maximum rpm, unfortunately the thrust was just enough to  
>>> get him  airborne, but not enough to accelerate to a safe speed.   
>>> He never  gained altitude and  impacted a cactus with fatal results.
>>>
>>> If your prop is set up similar to John's then you have a  
>>> comparison  and assuming your bird is similar in weight, etc,  
>>> then is probably  Ok to fly. I'd do a few taxi test and if your  
>>> acceleration feels  strong then you are probably  generating good  
>>> thrust.
>>>
>>> Any other "prop" guys want to advise Buly.
>>>
>>>
>>> Ed
>>>
>>
>> Ed, last night I found information on another Cozy with 6  
>> cylinder  Subaru 230 HP, same reduction ratio and the same prop.
>> At fine pitch like me, he was getting 4400 rpm and was able to  
>> get  2000 fpm at 80K on take-off.
>> I fully intend to do fast taxi tests before flying.
>> Buly
>>
>
> Ok, Buly, sounds like you are in good shape.  That  guy with the  
> Subaru is not Dwayne is it?
>
> Ed
>
>
His name is Keith Spreuer in CA.
Buly