Today's Message Index:
----------------------
1. 05:56 AM - Re: Mixing fuel (Stuart Harner)
2. 03:18 PM - Re: Re: Wing structure upgrades (Richard Girard)
3. 05:35 PM - Re: Re: Wing structure upgrades (John Hauck)
4. 05:37 PM - Re: Sheathing for wires in the wing... (John Hauck)
5. 05:48 PM - Re: Re: Wing structure upgrades (John Hauck)
6. 05:49 PM - Twinstar MK II (Mark K)
Message 1
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Yes it would be easier. However, I don=99t like to leave mixed
fuel sitting, even with Sta-Bil in it. Many times I leave the house
headed to the airport with the intention of flying but before I actually
get the engine started the conditions change and I don=99t
actually get to fly. My method has the least amount of mixed fuel on
hand at any given time, but there is more available for mixing if the
need should arise. Also, since it may be several weeks before the next
opportunity to fly, the less mixed the better.
Stuart
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of John Hauck
Sent: Friday, March 30, 2018 8:25 AM
Subject: RE: Kolb-List: Mk3 Xtra Fuel Tank Install....
Would it not be easier to put the Stabil and two stroke oil in the gas
can before buying fuel? Save a few operations maybe.
john h
mkIII
Titus, Alabama
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Stuart Harner
Sent: Friday, March 30, 2018 7:26 AM
Subject: RE: Kolb-List: Mk3 Xtra Fuel Tank Install....
That is a good point. Sparks and vapors = bad things.
In the case of the Faucet style the pump and wiring is located outside
of the gas can. You would have to drop a pickup tube/hose into the can.
The most likely place for a spark to occur would be at the battery
connection. If a switch were used, a sealed one would be best. In an
open air situation unless the spark was fairly close to the open can or
tank this is probably not too much of a concern, but caution is always
advised.
In my situation I like the battery operated pump because I don=99t
have to mess with wires and just the one hose. For fueling the Firefly,
it is much easier with the wings folded so I fuel up before doing
anything else.
At the gas station I put exactly 5 gal. in my 6 gal. can(s). As soon as
I get to the hangar I add Sta-Bil to each new batch, even if I intend to
use it right away. Next, is the only messy part of the operation. I have
to take the TeraPump out of the mix can put it somewhere clean.
Pour a gallon or two into the mix can, then add my 2-stroke oil. Use a
little fresh gas to rinse the measuring cup and make sure that all the
oil gets into the gas, putting the rinse into the mix can. Shake
slightly, then pour the rest of the fresh gas into the mix can. Replace
TeraPump. Agitate again, just to make sure.
Then set the mix can and pump on something (plastic spool, chair, etc)
close enough to reach the tank with the hose. Clip the hose to the tank
and hit the start button. In a couple of minutes the tank is full and
there is no spilled fuel.
While the pump is running I do my preflight inspection of the engine,
mounts, fuel and electrical system because it is so much easier to get a
good look while the wings are folded and I am standing there anyway. I
don=99t have to watch the fuel flow as the pump will shut itself
off when the tank is about an inch from being full.
Stuart
Message 2
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| Subject: | Re: Wing structure upgrades |
Mike, The great thing about experimental aviation is that it's perfectly
okay for you to make this mod. I don't know if it will get you any benefit
but it will be your airplane and should stand out from other Mk 3's. Can't
wait to hear how she flies.
Rick Girard
PS Those are awesome build tables. I'm going to copy them once I get the
hangar cleared out to rebuild and restore the Firestar and Mk 3
On Fri, Mar 30, 2018 at 8:03 PM, k3x <consort2@msn.com> wrote:
>
> Late start so only finished one wing..... am somewhat tentative in postin
g
> todays photos as the signature "hungry horse" leading edges may be a touc
hy
> topic to purists. Formed leading edges probably make no difference.....
> except in weight (4.7 lbs each) .... so please consider these a cosmetic
> indulgence. Comparing the rigidity in column between the two made me gl
ad
> I indulged.
> Mike C
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=478941#478941
>
>
> Attachments:
>
> http://forums.matronics.com//files/dsc02138_112.jpg
> http://forums.matronics.com//files/dsc02137_728.jpg
> http://forums.matronics.com//files/dsc02136_932.jpg
>
>
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>
--
=9CBlessed are the cracked, for they shall let in the light.=9D
Groucho Marx
<http://www.goodreads.com/author/show/43244.Groucho_Marx>
Message 3
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| Subject: | Re: Wing structure upgrades |
The wing also gets very rigid when the fabric is cemented on, shrunk, and
doped. I have no idea how much strength the fabric adds, but it does attach
all the parts and compresses them together. How much pressure? I don't
know, but enough to start bending tubes if one gets overzealous. Most of my
leading and trailing edges are bent. I like tight fabric.
john h
mkIII
Titus, Alabama
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of k3x
Sent: Friday, March 30, 2018 8:03 PM
Subject: Kolb-List: Re: Wing structure upgrades
Late start so only finished one wing..... am somewhat tentative in posting
todays photos as the signature "hungry horse" leading edges may be a touchy
topic to purists. Formed leading edges probably make no difference.....
except in weight (4.7 lbs each) .... so please consider these a cosmetic
indulgence. Comparing the rigidity in column between the two made me glad
I indulged.
Mike C
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=478941#478941
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http://forums.matronics.com//files/dsc02138_112.jpg
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Message 4
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| Subject: | Sheathing for wires in the wing... |
Hi Nick C/Kolbers,
I didn't run my wing wires through anything, but the ribs. Worked for me.
Hope Palmer is starting to warm a little.
john h
mkIII
Titus, Alabama
-----Original Message-----
From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Nick Cassara
Sent: Friday, March 30, 2018 8:50 PM
Subject: Kolb-List: Sheathing for wires in the wing...
Kolbers,
When I built my wings, I used air brake hose from NAPA. The hose is light weight,
very tough and has a smooth inner surface that make threading wire very easy.
For what it is worth.
Nick Cassara
Palmer, Alaska
Kolbra 607AK
Message 5
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| Subject: | Re: Wing structure upgrades |
Maybe you need to make your approach and touchdown fast enough to keep the
air flowing over the empennage. I have never had a problem running out of
elevator authority except once, but that wasn't during a landing.
Took a reporter/Army buddy flying in my MKIII at Sun and Fun many years ago.
I was showing how the MKIII handled recovery from unusual attitudes, spins,
and other stuff. I was trying to get into an accelerated stall by diving
and making a hard pull out, didn't work. Then I tried making hard, steep,
turns just above the stall. That would get it started into a stall if I
really worked at it. Then we tried a dive with full flaps ;-). This was a
first for me. Got up over 80 mph going straight down, pulled the stick back
and the MKIII kept on going straight down. The flaps had kicked the air off
the tail, engine was at idle. No air, no work. Released the flaps and she
pulled right out of it.
A higher speed approach and landing with full flaps could do the same thing,
kick the air down off the tail.
john h
mkIII
Titus, Alabama
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of Frankd
Sent: Friday, March 30, 2018 11:10 PM
Subject: Kolb-List: Re: Wing structure upgrades
Hello Mike C,
I have a MkIII Xtra and am watching your progress. The mods look nice and
certainly will add alot of strength. Good on ya, mate.
BUT... I fly with a Jabiru engine of 85Hp and when I take a passenger its a
little underpowered and every single pound does matter,,
I have actually limited my passenger weight to 200Lbs for safety, you lose
some elevator authority on landing with such a forward CG and I sometime
wish I could have saved a few LBs here and there.
Now, obviously, how your Kolb performs will depend on the engine you choose
and how your CG ends up. I wish you well in your final choice.
One other thing was I built exactly to the plans and I have never found any
issue with the design where I wished it was better.. its very strong in the
wing bow area and has never given me an issue.
One tip I would give you is to put 200 lbs of sandbags in the passenger seat
the first time you think of taking a passenger.. Its an eye-opening
experience but will give you the feel of what to expect.
best wishes and fun flying.
FrankD
N1014S, MkIIIXtra.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=478943#478943
Message 6
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I have a question and I hope a fellow Twinstar MK II can help. I am rebuilding
a Twinstar and I'm about to start on the tubing at the rear of the cage. I do
not have a template to go by neither the photo build manual nor the plans give
any details in regards to shape or a profile to follow.
Does anyone have any suggestions for getting the right shape bend for the tubing?
Has anyone done or redone this tubing installation?
I have some ideas for making templates and bending but was looking for any guidance
that any may have to offer.
Thanks in advance.
--------
Mark
Twinstar MKII
Great Bend, PA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=478954#478954
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