Today's Message Index:
----------------------
1. 11:33 AM - Re: Fw: Flying with a level (Gary L Vogt)
2. 12:27 PM - Re: Fw: Flying with a level (Doug Doty)
3. 07:53 PM - Re: Re: Fw: Flying with a level (Bob Hodo)
4. 08:43 PM - Re: Fw: Flying with a level (Doug Doty)
5. 10:14 PM - Re: Re: Fw: Flying with a level (Gary L Vogt)
Message 1
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| Subject: | Re: Fwd: Flying with a level |
I have nothing to hide. Besides, I think there are a lot of folks who would l
ike the education even if they have nothing to add. Who knows, there may be a
lurker out there with some valuable information.
Gary
Sent from my iPad
On Nov 23, 2011, at 11:03 PM, Bob Hodo <bob.hodo@yahoo.com> wrote:
> >>Did this go out to the list? I didn't see it.
>
> No, my last several emails have gone only to you, and Bob Steward, and Ned
. I think Ned and Bob are kind of keeping it between the four of us as well
, at least for now.
>
> Bob Hodo
>
>
>
Message 2
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| Subject: | Re: Fwd: Flying with a level |
You are right about Lurkers. I drag raced for 25 years and crave speed and efficiency,
so don't think I am not enjoying the exchange of information, I am dying
to pick up a little and smoke a certain mooney !!!!!
--------
1977 AA5B N28454, Fuel Totalizer, Lopresti Nose, Red Rudder Cap, 4 cyl. egt, stock
otherwise.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=359129#359129
Message 3
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| Subject: | Re: Fwd: Flying with a level |
It wasn't that I was trying to keep anything from the lurkers, as much as I
was trying to organize my thinking, knew I was probably making some mental
mis-calculations, etc.
I had sent a 13 item list to Bob S, Ned, and Gary of a combo of facts and a
ssumptions, and immediately got two corrections from Ned, and later a strin
g from Gary.
I won't re-print the errant first draft, but will come back later on with s
ome ideas, or at least observations I have never seen addressed either here
or on the grumman gang.
I have not seen a word about any of this on the GG so far.
It began with Ned asking a very reasonable question about whether a certain
amount of split elevator might not be a lower drag arrangement.
Then Ned said something about flying with a level on his canopy rails, so I
had to go fly the cheetah and see what my level would show me.
Now I have downloaded an inclinometer for both my droid x and my Motorola X
oom, and am surprised at my first few readings.
I have also been staring at a wing rib borrowed from Bob Steward.- I am c
onvinced that we do not need to go into the experimental category to find s
ome speed and economy that Roy Lo-Presti said was in there.
....................
For the moment I will offer this:- Our canopy rails and the floor under t
he front seat, and the HS appear to all be parallel to each other.
When the flat bottom of the fuselage bends upwards, it does so at a 7 degre
e angle.- I am told that is a significant number.
When my cheetah is strait and level at 140 knots, the canopy rails are more
than 1 degree ( 1.27 is my first measurement ) nose down.- That means th
at rear section is 8.27 degrees nose down.
I just don't see how that is not a problem from a fuselage drag standpoint,
nevermind what the empenage is experiencing.
Another thing most of you do not know is that our wings are NOT flat on the
bottom.- They are flat with a 4+ degree bend just like the bottom of the
fuselage has its 7 degree bend.
The aft flat section of the wing sits two degrees nose down to the canopy r
ails, the flat front section being just more than 2 degrees nose up.- By
the time we reflex our flaps or ailerons or both, the bottom side of our wi
ng is just horrible compared to that beautiful camber on the top.
And then I walk across the maintenance hanger and look at that wing on the
Cirrus SR22...
Bob Hodo
GADsden, AL,- I need to start smoking a pipe.
Message 4
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| Subject: | Re: Fwd: Flying with a level |
I am always looking for some place to go so maybe I'll swing over that way and
compare notes some day, I am going to Florida to get warm soon and Louisiana to
visit a son healing from an Afghanistan wound a while back. I look at it.
Doug...
--------
1977 AA5B N28454, Fuel Totalizer, Lopresti Nose, Red Rudder Cap, 4 cyl. egt, stock
otherwise.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=359147#359147
Message 5
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| Subject: | Re: Fwd: Flying with a level |
This is the basic 64-415 airfoil. It really is a nice airfoil. Too bad the l
eading edge was messed with: http://worldofkrauss.com/foils/1674
7 or 8 degree rise in the aft fuselage in flight, though not all that optimu
m, is not that bad from a flow separation stand point. Just look at the aft e
nd of an Aerostar. Crawl under your plane after filling it with 8 qts of oil
and flying for an hour. The oil streaks are quite uniform. A while back, I p
ut dye on the sides where the fuselage breaks. Not great but not all that ba
d.
Any chance of getting the ribs to build a 64-415 wing for a Tiger?
Just an observation: look at the leading edge of a late AG5B. It's a lot s
harper than a 70s era wing.
Gary
Sent from my iPad
On Nov 24, 2011, at 7:51 PM, Bob Hodo <bob.hodo@yahoo.com> wrote:
> It wasn't that I was trying to keep anything from the lurkers, as much as I
was trying to organize my thinking, knew I was probably making some mental m
is-calculations, etc.
>
> I had sent a 13 item list to Bob S, Ned, and Gary of a combo of facts and a
ssumptions, and immediately got two corrections from Ned, and later a string
from Gary.
>
> I won't re-print the errant first draft, but will come back later on with s
ome ideas, or at least observations I have never seen addressed either here o
r on the grumman gang.
>
> I have not seen a word about any of this on the GG so far.
>
> It began with Ned asking a very reasonable question about whether a certai
n amount of split elevator might not be a lower drag arrangement.
>
> Then Ned said something about flying with a level on his canopy rails, so I
had to go fly the cheetah and see what my level would show me.
>
> Now I have downloaded an inclinometer for both my droid x and my Motorola X
oom, and am surprised at my first few readings.
>
> I have also been staring at a wing rib borrowed from Bob Steward. I am co
nvinced that we do not need to go into the experimental category to find som
e speed and economy that Roy Lo-Presti said was in there.
>
> ....................
>
> For the moment I will offer this: Our canopy rails and the floor under th
e front seat, and the HS appear to all be parallel to each other.
>
> When the flat bottom of the fuselage bends upwards, it does so at a 7 degr
ee angle. I am told that is a significant number.
>
> When my cheetah is strait and level at 140 knots, the canopy rails are mor
e than 1 degree ( 1.27 is my first measurement ) nose down. That means that
rear section is 8.27 degrees nose down.
>
> I just don't see how that is not a problem from a fuselage drag standpoint
, nevermind what the empenage is experiencing.
>
> Another thing most of you do not know is that our wings are NOT flat on th
e bottom. They are flat with a 4+ degree bend just like the bottom of the f
uselage has its 7 degree bend.
>
> The aft flat section of the wing sits two degrees nose down to the canopy r
ails, the flat front section being just more than 2 degrees nose up. By the
time we reflex our flaps or ailerons or both, the bottom side of our wing i
s just horrible compared to that beautiful camber on the top.
>
> And then I walk across the maintenance hanger and look at that wing on the
Cirrus SR22...
>
> Bob Hodo
> GADsden, AL, I need to start smoking a pipe.
>
>
>
>
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