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Date: Wed, 09 Mar 2011 08:26:26 -0500
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Subject: Re: [LML] Re: LNC4 Observed Performance?
From: Colyn Case <colyncase@earthlink.net>
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David can you post your climb rates all the way to fl250?

On Mar 8, 2011, at 3:54 PM, Dr. Weinsweig wrote:

> hi craig,
> 
> although obviously biased i feel that the turbine ivp ie propjet is the
> way to go.  
> 
> i see right around 300ktas from fl180(39 gph) to fl280(29gph) and
> typically 32-33 gph at fl250 in my tks deiced propjet.  with 146 gallons
> usable i can comfortably plan for 900 nm and still have over an hour for
> reserves.
> 
> yes fuel burn is higher and range slightly less than a piston but when
> you add climb/descent rates, short field advantages(due to power and
> prop beta), perceived reliability, the smell of jet a, and the coolness
> factor it is hard to beat!
> 
> just my $.02 fwiw,
> 
> david weinsweig
> n750dw propjet 233 hrs- still for sale(need a family plane now) but
> lovin' her
> 304-633-5221
> weinsweigd@gmail.com
> 
> 
>>>> cj@AwlBiz.com 03/02/2011 9:31 PM >>>
> If this is posted elsewhere, please point me to the data.
> 
> The Lancair site says a piston IV-P will do 330 mph (~286 KTAS) at
> FL240. 
> I'd be interested in what speed and fuel-flow you guys see at
> sustainable
> power settings at various altitudes.
> 
> Most of you flying LOP?  I'm going to the APS class this Friday in
> Ada.
> 
> How much speed do you lose equipping with the thermal or TKS icing
> products?
> 
> Although probably beyond my budget, I'd also be interested in similar
> data
> for turbine-powered IVPs.
> 
> My typical flight is 720 nm Oklahoma City to Phoenix, MEA 13000',
> prevailing westerlies, 1-2 people and 50 lb stuff.  The Mooney M20J
> does
> great on non-stop range and economy, but I'm evaluating options for
> going
> a lot faster, and preferably with at least inadvertent ice equipment. 
> Currently thinking Mooney Rocket, P-Baron, IV, IVP...?  Thoughts on
> appropriate planes would be welcomed.
> 
> Craig
> 
> 
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