Float mounting throat angle and step location
Posted: Sat Feb 18, 2012 10:16 am
Bob, most have mounted the float top deck in relation to the cabin bottom at
between 2 and 3 degrees nose up.....which works out to approx 6 to 7 degrees
to the theoretical wing cord. I'll have to find the data but I believe I had
Howard's at 2.7* throat angle in relation to the cabin floor and Garry's
FOKM is pretty similar as well. Works beautiful at this angle. End of step
on MAM 1800's approximately 27 inches back from the inside (rear) face of
the forward most strut attach fitting on the fusleage.
Wayne
----- Original Message -----
From: "Bob Andrews" <robert@montanasky.us>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, March 08, 2005 10:55 PM
Subject: RE: rear float brackets
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between 2 and 3 degrees nose up.....which works out to approx 6 to 7 degrees
to the theoretical wing cord. I'll have to find the data but I believe I had
Howard's at 2.7* throat angle in relation to the cabin floor and Garry's
FOKM is pretty similar as well. Works beautiful at this angle. End of step
on MAM 1800's approximately 27 inches back from the inside (rear) face of
the forward most strut attach fitting on the fusleage.
Wayne
----- Original Message -----
From: "Bob Andrews" <robert@montanasky.us>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, March 08, 2005 10:55 PM
Subject: RE: rear float brackets
of... it looks like that particular float installation has 9 to 10 degrees
...throat angle ... which also could produce less then optimal performance
on-the-stepwould think 3-5 should do it leaving the rest for rotation once
whichspeed gets up there. What throat angle are you setting your floats at on
the Rebels?
Bob e612
-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Wayne G. O'Shea
Sent: Tuesday, March 08, 2005 8:35 PM
To: rebel-builders@dcsol.com
Subject: Re: rear float brackets
Yes Bob! Ron's old airplane. I agree..step is too far forward by about 9
inches or so comparing pictures of side to side on what I know works.
Problem may be weight (probably the + side of 380lbs for the Bilmars -
rearleaves one 200 lb pilot and 4 gallons of fuel to be legal and actually
wouldn't pass TC's useful load calculation) to work out an acceptible C of
G..but I'd think further back would improve the C of G if anything. The
Rebelstrut would still be slanted back though so moving the rear fus attach
forward as Bob (Keith) are doing makes a lot of sense. Both struts leaning
the same way just begs for collapse in a hard landing. Glad Howard's rear
strut was straight TFSure.
Wayne
...................
Mark C-FPSR Serial No 077R
Common Name Murphy Model REBEL
File Location Toronto Basis for Eligibility for Registration Amateur
Built - CAR Standard 549
Type of Registration Private
Category Aeroplane Weight (Kgs) 748
Manufacturer RON C. BARBER
Year of Manufacture 1995
Country of Manufacture CANADA
Owner Registration
Owner Registered Since 2001-08-02 Last Certificate of Registration
Issued 2001-08-02
Engine Piston Number of Engines 1
Owner Information
Name ( 1 of 1 ) 629995 Ontario Inc. Mail Recipient Yes
Address P.O. Box 98
City Braeside Province Ontario
Postal Code K0A 1G0 Region Ontario
..................
----- Original Message -----
From: "Bob Patterson" <beep@sympatico.ca>
To: <rebel-builders@dcsol.com>
Sent: Tuesday, March 08, 2005 9:04 PM
Subject: Re: rear float brackets
Hi Al !
From the photo, that looks like Ron Barber's old Rebel.
The step appears to be over a foot or more too far forward -
that would account for the angle of the rear support ....
and also the poor performance !! ;-) :-)
Guess they had <some> reason for the positioning.
......bobp
-------------------------------orig.-------------------------
On Tuesday 08 March 2005 12:05 am, Alan Hepburn wrote:Wayne:
It was Eric Draper's Rebel. I've posted the pic on Rebel/Float
Installations. The rear spreader is about the same location as on the
Montana 2200s.
Al
----- Original Message -----
From: "Wayne G. O'Shea" <oifa@irishfield.on.ca>
To: <rebel-builders@dcsol.com>
Sent: Monday, March 07, 2005 9:31 PM
Subject: Re: rear float brackets
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