Return-Path: Received: from sccrmhc12.comcast.net ([204.127.202.56] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3208006 for flyrotary@lancaironline.net; Wed, 05 May 2004 21:59:47 -0400 Received: from 204.127.205.142 ([204.127.205.142]) by comcast.net (sccrmhc12) with SMTP id <2004050601591801200b8m67e>; Thu, 6 May 2004 01:59:18 +0000 Received: from [68.51.45.250] by 204.127.205.142; Thu, 06 May 2004 01:59:17 +0000 From: kenpowell@comcast.net To: "Rotary motors in aircraft" Subject: HP calc for FI Date: Thu, 06 May 2004 01:59:17 +0000 Message-Id: <050620040159.22410.40999BF4000C9F0E0000578A2200748184FF93939A88908F919A@comcast.net> X-Mailer: AT&T Message Center Version 1 (Apr 12 2004) X-Authenticated-Sender: a2VucG93ZWxsQGNvbWNhc3QubmV0 Rusty, The calculations don't need RPM. The calcs are based on the PERCENT of 'ON' time for the injector. Thus, if the duty cycle is 80% the calc uses .8 * Injector capacity (ie, 43 lb per hr times .8). At 100% (full ON) the injector is flowing 43lb per hr. Simple. Ken Powell