Today's Message Index:
----------------------
1. 02:22 AM - Re: Glasair-List Digest: 4 Msgs - 07/13/07 (Byron Covey)
2. 05:59 AM - Re: Re: Glasair-List Digest: 0 Msgs - 07/12/07 (Robin Young)
3. 09:03 AM - Re: Glasair-List Digest: 4 Msgs - 07/13/07 (Craymondw@aol.com)
4. 12:22 PM - Re: Re: Glasair-List Digest: 4 Msgs - 07/13/07 (steve korney)
Message 1
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| Subject: | Re: Glasair-List Digest: 4 Msgs - 07/13/07 |
The point of balane is not on the hinge line, but slightly aft of the hinge
about 3/5 ths of the way up from the bottom of the rudder. The ideal
balance is to prevent not only "left-and-right" flutter, but also flutter
about a horizontal axis through the rudder.
I used sheet lead in my not yet flying Super II - FT, and had planty of
spare room for the counterweight, even with it shorter (fore and aft) than
called for in the manual.
BJC
----- Original Message -----
From: "Glasair-List Digest Server" <glasair-list@matronics.com>
Sent: Saturday, July 14, 2007 2:56 AM
Subject: Glasair-List Digest: 4 Msgs - 07/13/07
> *
>
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> ----------------------------------------------------------
> Glasair-List Digest Archive
> ---
> Total Messages Posted Fri 07/13/07: 4
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 08:21 AM - Re: Glasair-List Digest: 0 Msgs - 07/12/07
> (Craymondw@aol.com)
> 2. 09:29 AM - Re: Re: Glasair-List Digest: 0 Msgs - 07/12/07 (steve
> korney)
> 3. 01:13 PM - Re: Re: Glasair-List Digest: 0 Msgs - 07/12/07
> (Craymondw@aol.com)
> 4. 01:55 PM - Re: Re: Glasair-List Digest: 0 Msgs - 07/12/07 (steve
> korney)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 08:21:10 AM PST US
> From: Craymondw@aol.com
> Subject: Glasair-List: Re: Glasair-List Digest: 0 Msgs - 07/12/07
>
> After I assembled my rudder I ran a wire through the hinge to get some
> idea
> how well it was balanced and found it not to be so good. One builder that
> lived down the street made a plaster cast of the cavity and poured molten
> lead
> to
> get more weight in the counter balance cavity. Using the plans method, I
> couldn't get in the required weight and I wasn't about to drill out the
> lead
> shot. I have over 1,000 hours and as I mentioned before, I have performed
> high
>
> speed passes well in excess of 260 mph and haven't experienced flutter.
> At the time I had stopped constructing an RV 4 and decided to weight
> the
> tail feathers and found the total weight of the RV 4 tail feathers almost
> equaled the weight of my Glasair rudder!! I completed the very first 2S
> and
> discovered that although I installed a 200 hp IO360, constant speed prop
> and all
>
> weather instrument panel, my plane was not as nose heavy as I thought it
> would be. The next to complete the 2S had an aft CG problem and that led
> Stoddard Hamilton to advise moving the wing back and introducing the
> Super 2S
>
> series. I thought; "How bazaar, why didn't they just offer the tail
> feathers and
>
> control surfaces in carbon fiber!!"
>
>
> ************************************** Get a sneak peak of the all-new AOL
> at
> http://discover.aol.com/memed/aolcom30tour
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 09:29:23 AM PST US
> From: "steve korney" <s_korney@hotmail.com>
> Subject: RE: Glasair-List: Re: Glasair-List Digest: 0 Msgs - 07/12/07
>
>
> (snip) " I have performed high speed passes well in excess of 260 mph and
> haven't experienced flutter"
>
> Do ya think your RV-4 could have done 260 mph and not flutter...?
>
>
> Best... Steve
>
>
> ----Original Message Follows----
> From: Craymondw@aol.com
> Subject: Glasair-List: Re: Glasair-List Digest: 0 Msgs - 07/12/07
>
> After I assembled my rudder I ran a wire through the hinge to get some
> idea
> how well it was balanced and found it not to be so good. One builder that
> lived down the street made a plaster cast of the cavity and poured molten
> lead to
> get more weight in the counter balance cavity. Using the plans method, I
> couldn't get in the required weight and I wasn't about to drill out the
> lead
> shot. I have over 1,000 hours and as I mentioned before, I have performed
> high
> speed passes well in excess of 260 mph and haven't experienced flutter.
> At the time I had stopped constructing an RV 4 and decided to weight
> the
> tail feathers and found the total weight of the RV 4 tail feathers almost
> equaled the weight of my Glasair rudder!! I completed the very first 2S
> and
> discovered that although I installed a 200 hp IO360, constant speed prop
> and all
> weather instrument panel, my plane was not as nose heavy as I thought it
> would be. The next to complete the 2S had an aft CG problem and that led
> Stoddard Hamilton to advise moving the wing back and introducing the
> Super
> 2S
> series. I thought; "How bazaar, why didn't they just offer the tail
> feathers and
> control surfaces in carbon fiber!!"
>
>
> ************************************** Get a sneak peak of the all-new AOL
> at
> http://discover.aol.com/memed/aolcom30tour
>
> _________________________________________________________________
> http://newlivehotmail.com
>
>
> ________________________________ Message 3
> _____________________________________
>
>
> Time: 01:13:09 PM PST US
> From: Craymondw@aol.com
> Subject: Re: Glasair-List: Re: Glasair-List Digest: 0 Msgs - 07/12/07
>
> I never completed the RV 4 I was building, so I can't tell you if the
> rudder
> would have fluttered at 260 MPH. I came close to that speed doing
> aerobatics
> in one that a friend owned, but I wouldn't recommend approaching that
> speed
> in one. Also, because of all the structural failures in RV's I never felt
> comfortable in one. Second to RV structural failures are Lancairs. I have
> never
>
> heard of a structural failure in any Glasair. Before building my Glasair
> I
> owned an S1S Pitts with a souped up IO 360. I had that plane well over
> 200 mph
>
> doing aerobatics and never experienced a flutter. Before owning both
> planes
> I flew a T-18 and performed 230 mph runs with it. That plane didn't have
> a
> counter weighted rudder.
> I have flown my Glasair to 46 states, Canada and Mexico. The plane has a
> ride like a Cadillac. I have flown in bad thunder storms, snow, ice and
> freezing rain that was so bad, chunks of ice flew off the prop and
> cowling and
>
> smash into the wind screen. And I have hand flown solid IFR for hours on
> end.
> I
> have had the plane close to 18,000 feet altitude and I find the plane
> stable
> and as smooth as glass. And survivability in a crash is the best of all
> the
> composites. My beef with Stoddard Hamilton was not offering parts or even
> the
>
> whole kit in Carbon fiber. I always felt a carbon fiber version would
> shed
> hundreds of pounds in weight and would open up a whole new market.
> Especially
>
> if all the known speed modifications were introduced. Although my plane
> burns
>
> 10 gallons per hour, I average close to 210 mph giving me 21 miles per
> gallon.
>
>
> ************************************** Get a sneak peak of the all-new AOL
> at
> http://discover.aol.com/memed/aolcom30tour
>
> ________________________________ Message 4
> _____________________________________
>
>
> Time: 01:55:36 PM PST US
> From: "steve korney" <s_korney@hotmail.com>
> Subject: Re: Glasair-List: Re: Glasair-List Digest: 0 Msgs - 07/12/07
>
>
> "Although my plane burns 10 gallons per hour, I average close to 210 mph
> giving me 21 miles per gallon. "
>
> When you say that, is it at wide open throttle, 2700 rpm's and @ sea level
> /
> standard day....or 18000 ft. or what...? I need more information...
>
>
> Best... Steve
>
>
> ----Original Message Follows----
> From: Craymondw@aol.com
> Subject: Re: Glasair-List: Re: Glasair-List Digest: 0 Msgs - 07/12/07
>
> I never completed the RV 4 I was building, so I can't tell you if the
> rudder
> would have fluttered at 260 MPH. I came close to that speed doing
> aerobatics
> in one that a friend owned, but I wouldn't recommend approaching that
> speed
> in one. Also, because of all the structural failures in RV's I never felt
> comfortable in one. Second to RV structural failures are Lancairs. I have
> never
> heard of a structural failure in any Glasair. Before building my Glasair
> I
> owned an S1S Pitts with a souped up IO 360. I had that plane well over
> 200
> mph
> doing aerobatics and never experienced a flutter. Before owning both
> planes
> I flew a T-18 and performed 230 mph runs with it. That plane didn't have
> a
> counter weighted rudder.
> I have flown my Glasair to 46 states, Canada and Mexico. The plane has
> a
> ride like a Cadillac. I have flown in bad thunder storms, snow, ice and
> freezing rain that was so bad, chunks of ice flew off the prop and
> cowling
> and
> smash into the wind screen. And I have hand flown solid IFR for hours on
> end. I
> have had the plane close to 18,000 feet altitude and I find the plane
> stable
> and as smooth as glass. And survivability in a crash is the best of all
> the
> composites. My beef with Stoddard Hamilton was not offering parts or even
> the
> whole kit in Carbon fiber. I always felt a carbon fiber version would
> shed
> hundreds of pounds in weight and would open up a whole new market.
> Especially
> if all the known speed modifications were introduced. Although my plane
> burns
> 10 gallons per hour, I average close to 210 mph giving me 21 miles per
> gallon.
>
>
> ************************************** Get a sneak peak of the all-new AOL
> at
> http://discover.aol.com/memed/aolcom30tour
>
> _________________________________________________________________
> http://newlivehotmail.com
>
>
>
Message 2
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| Subject: | Re: Glasair-List Digest: 0 Msgs - 07/12/07 |
"Although my plane burns 10 gallons per hour, I average close to 210 mph
giving me 21 miles per gallon. "
When you say that, is it at wide open throttle, 2700 rpm's and @ sea level /
standard day....or 18000 ft. or what...? I need more information...
Steve, I get the same performance as mentioned in the previous post. I have
an original TD with 160Hp and a constant speed prop. At any altitude that I
can lean out 10GPH, I get 210MPH. At 7500' it means full throttle at about
2500RPM. Higher and the full throttle requires more RPM. Lower altitude
with full throttle and the RPM goes down to an over square power setting
2350/27MP or so....or 24 sq at 10gph still gets 210MPH TAS. I have flown
close formation with many different planes and the airspeed ind checks
against the other planes.
I hope this helps. Robin Young
Message 3
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| Subject: | Re: Glasair-List Digest: 4 Msgs - 07/13/07 |
My GL 2S FT has a Hartzel constant speed prop. My plane cruises at 210 mph
using 10 gals per hour at 8,000 feet with full throttle. My RPM is 2375.
Higher RPM'S actually make the plane fly slower. A friend has a GL 2 FT using
a
McCauley prop and cruises at 220 MPH.
The lister that has the TD with a 160 hp, fixed pitch appears to be in
the speed range for that configuration.
************************************** Get a sneak peak of the all-new AOL at
http://discover.aol.com/memed/aolcom30tour
Message 4
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| Subject: | Re: Glasair-List Digest: 4 Msgs - 07/13/07 |
At 10 gal. per hour your making about 125 to 130 horse power... I guess
that means that we should all be using a McCauley prop... Like your
friend...
Best... Steve
----Original Message Follows----
From: Craymondw@aol.com
Subject: Glasair-List: Re: Glasair-List Digest: 4 Msgs - 07/13/07
My GL 2S FT has a Hartzel constant speed prop. My plane cruises at 210 mph
using 10 gals per hour at 8,000 feet with full throttle. My RPM is 2375.
Higher RPM'S actually make the plane fly slower. A friend has a GL 2 FT
using a
McCauley prop and cruises at 220 MPH.
The lister that has the TD with a 160 hp, fixed pitch appears to be in
the speed range for that configuration.
************************************** Get a sneak peak of the all-new AOL
at
http://discover.aol.com/memed/aolcom30tour
_________________________________________________________________
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