Return-Path: Received: from pop018.verizon.net ([206.46.170.212] verified) by logan.com (CommuniGate Pro SMTP 4.1.3) with ESMTP id 2590057 for flyrotary@lancaironline.net; Mon, 22 Sep 2003 23:01:37 -0400 Received: from netzero.net ([4.4.60.238]) by pop018.verizon.net (InterMail vM.5.01.05.33 201-253-122-126-133-20030313) with ESMTP id <20030923030136.IOBR11703.pop018.verizon.net@netzero.net> for ; Mon, 22 Sep 2003 22:01:36 -0500 Message-ID: <3F6FB78E.5010404@netzero.net> Date: Mon, 22 Sep 2003 23:01:34 -0400 From: Finn Lassen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax; PROMO) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Some turbo thoughts from a pro .... References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------090309040903010002060201" X-Authentication-Info: Submitted using SMTP AUTH at pop018.verizon.net from [4.4.60.238] at Mon, 22 Sep 2003 22:01:36 -0500 This is a multi-part message in MIME format. --------------090309040903010002060201 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Now these are real loose numbers from memory. But on a 90F day I'm not seeing much more than 10GPH climbing out through 1500'. I seem to recall seeing 13+ GPH on a 50 or 60F day. But surely someone here should be able to present a formula or graph that shows HP vs air temp. Finn Russell Duffy wrote: > (antagonizing text deleted ) > > Of course, by fuel flow, I'm only producing 120 (hot day) to 150 > (cold day) HP. > > You're saying you have a 30 HP difference between hot and cold days? > Holy cow !!! Do you have intake temps to go along with that? If not, > what would be your definition of hot and cold? I'm going to have to > find those intercoolers... > > Thanks for the info. > Rusty > --------------090309040903010002060201 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Now these are real loose numbers from memory. But on a 90F day I'm not seeing much more than 10GPH climbing out through 1500'.
I seem to recall seeing 13+ GPH on a 50 or 60F day.

But surely someone here should be able to present a formula or graph that shows HP vs air temp.

Finn

Russell Duffy wrote:

Message
(antagonizing text deleted <g>)

Of course, by fuel flow, I'm only producing 120 (hot day) to 150 (cold day) HP.

You're saying you have a 30 HP difference between hot and cold days? Holy cow !!! Do you have intake temps to go along with that? If not, what would be your definition of hot and cold? I'm going to have to find those intercoolers...

Thanks for the info.

Rusty

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