Mailing List flyrotary@lancaironline.net Message #12842
From: Tracy Crook <lors01@msn.com>
Subject: Re: [FlyRotary] Weight and Balance?
Date: Fri, 12 Nov 2004 16:15:38 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
Hi Tommy,  Have not re-weighed the plane but I dropped about 25 pounds with the new installation.  Only 10 of those were due to the lighter Renesis.  The rest were due to engine mount, oil filter, hoses, intake manifold, etc.  It was 934 pounds before paint back in 1994.  Time to weigh it again. 
 
Total 'shoe box' runner length is about 11 inches now.
 
Tracy  (Preliminary test results on longer intake runners - Woo Hooo!  More details later)
----- Original Message -----
Sent: Thursday, November 11, 2004 6:30 PM
Subject: [FlyRotary] Weight and Balance?

Hi T.  What is the new empty weight of the Otter?

What is the length of the new runners? (internal port to shoebox)

Regards, and very sorry to miss the flyin!

Tommy<><

 

 


 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Thursday, November 11, 2004 9:29 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: best cruise altitude and power

 

Correct on all counts Rusty.  I'm using the airplane as a dyno in these tests which has very little to do with the way airplanes are actually used.  As I have said in the past, top speed and HP numbers are good for only one thing -  Hangar bragging rights.  My comment about never testing above 6000 applies only to the recent Renesis testing.

 

As an example of why it makes no sense to go fast down low, I can fly 202 mph at 1000 ft (not full throttle) while sweating profusely in a hot cockpit while burning about 16 GPH. I can go the same speed at 14000 ft in complete comfort while burning 8.25 GPH (numbers from earlier 2nd gen 13B engine).

 

Tracy (installing longer intake runners in shoebox manifold - Turbo flyers beware : )

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