Today's Message Index:
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1. 07:53 AM - Re: Blended foil prop (Craymondw@aol.com)
2. 04:50 PM - Sportsman Cowl Dimensions (donmorrisey)
Message 1
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| Subject: | Re: Blended foil prop |
Because of the following, I haven't been able to test the performance of
my newly installed blended foil prop. One reason is I use Areo Shell 100/50
wt oil and in Georgia we have had a straight run of far below average
freezing temperatures. The second reason is that when I went to torque the
spinner bulk head bolts to 22 Ft pounds they wouldn't hold that torque value.
After talking to a Hartzell's tech adviser and thinking about it, I think a
combination of factory silicon on the hub's bolt surfaces and aluminum
filings getting in between the riveted aft spinner bulk head bolt reinforcement
plates from filing out those sections to clear the beefier hub were the
culprits. A Hartzell technician advised cleaning the hub surfaces with MEK
before installing and torquing the bolts. I thought the bolts may have been
stretching but the adviser replied the bolts could hold torque far beyond
the recommended 22 FT Pds. As soon as Georgia's temperatures return to
normal I will bring those bolts up to torque and test the performance.
Glasair's Harry Delong told me the factory installed a blended foil prop
on the Factory Super 2S RG and noted an increase of 7 MPH cruising speed. A
local RV 9 driver reported an increase of 10 MPH.
In a message dated 2/3/2010 11:19:42 P.M. Eastern Standard Time,
mkburrow@sbcglobal.net writes:
Let us know any performance differences....
____________________________________
From: "Craymondw@aol.com" <Craymondw@aol.com>
Sent: Wed, February 3, 2010 9:43:54 AM
Subject: Glasair-List: Re: Blended foil prop
Just replaced my old Hartzell prop with a new blended foil version. I
found the height of the new blended foil hub to be roughly 1/8 of an inch
deeper. I solved this by leaving only the four aft bulk head spacers in place
and not using any spacing washers. I found the aft spinner bulk head
wouldn't clear the hub flanges around the base of each blade because the hub
diameter around both blades is larger. To solve this problem I had to grind out
two, 2 1/2 inch long X 1/2 inch deep "U" shaped notches out of the aft bulk
head to clear the blade hub flanges.
On another subject, my fiber glass left main landing gear leg is softer
than my right leg causing my left wing to droop. I thought of removing the
leg and applying another couple of layers of cloth to firm it up. Has anyone
had this problem?
Note: I had delivery problems with YRC freight company' billing policies
in delivering the prop and Glasair Company's, Harry Delong, has gone out of
his way into putting in an extra effort to solving it.
Chuck Raymond
Gl2SFT N16CD
In a message dated 2/3/2010 3:11:27 A.M. Eastern Standard Time,
glasair-list@matronics.com writes:
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| Subject: | Sportsman Cowl Dimensions |
I'm hoping someone on this list can help me out. I'm building a Bushcaddy w/ a
lyc O-235. I found out last night that my standard ACS nosebowl is not going
to work on my plane becasue I have a Powerflow exhaust system. My nosebowl is
basically a crescent shape on the bottom and due to the Powerflow's configuration
a more rectangular nosebowl is required. The Powerflow system I have is
the exact system Powerflow makes for the Spotrsman. I have seen some pretty
good pics of the Sportsman cowl and am almost certain it will work for me. My
plan would be to use the forward portion and cut off the rest, then use aluminum
panels to mate that section to my firewall. What I'm looking for are some
general dimensions: Side to side from the widest forward part, center to center
of the air inlets, the diameter of the prop opening., a general height and
width of one of the air inlets. Any help would be greatly appreciated. Thanks
--------
Don...
BushCaddy R120
http://www.donsbushcaddy.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=284901#284901
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