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tkrolfe(at)toast.net
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 Posted: Mon Jul 07, 2008 6:57 am Post subject: Sport Pilot article |
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Steve Boetto,
Congratulations on the very nice article in the July issue of Sport
Pilot magazine. You should be happy with the very extensive coverage
they did on your puddle hopping FireFly. Nice job!!
Hope to get to see it up close in the near future!
Terry - FireFly #95
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jbhart(at)onlyinternet.ne
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| Posted: Mon Jul 07, 2008 8:05 am Post subject: Sport Pilot article |
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Steve,
I noticed in the leading page photo, that you have four piano hinges per
aileron. This was great to see. My plans called for three, and I am just
about ready to replace the inner hinge pin on the left wing for the second
time at 242 hours. I will add another hinge segment inboard to the left
wing/aileron.
If your empty weight is 328 pounds, what do you consider to be your gross
weight limit?
How does the new FireFly empty weight compare to that of the "Puddle
Buster"?
Good article.
Jack B. Hart FF004
Winchester, IN
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Steve Boetto
Joined: 11 Jan 2006
Posts: 364
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| Posted: Mon Jul 07, 2008 3:35 pm Post subject: Sport Pilot article |
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Terry, you are welcome anytime, thanks for the comments
Steve B
Firefly 007/Floats
Firefly 0040/ Floats 2008 SnF Grand Champion
In a message dated 7/7/2008 10:57:43 A.M. Eastern Daylight Time, tkrolfe(at)toast.net writes:
| Quote: | --> Kolb-List message posted by: TK <tkrolfe(at)toast.net>
Steve Boetto,
Congratulations on the very nice article in the July issue of Sport
Pilot magazine. You should be happy with the very extensive coverage
they did on your puddle hopping FireFly. Nice job!!
Hope to get to see it up close in the near future!
Terry - FireFly es y --> - MATRONICS WEB FORUMS nbsp; - List Contribution Web Site ; ========================
|
Gas prices getting you down? Search AOL Autos for fuel-efficient used cars.
[quote][b]
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Steve Boetto
Joined: 11 Jan 2006
Posts: 364
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| Posted: Mon Jul 07, 2008 4:05 pm Post subject: Sport Pilot article |
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In a message dated 7/7/2008 12:06:21 P.M. Eastern Daylight Time, jbhart(at)onlyinternet.net writes:
| Quote: |
I noticed in the leading page photo, that you have four piano hinges per
aileron. This was great to see. My plans called for three, and I am just
about ready to replace the inner hinge pin on the left wing for the second
time at 242 hours. I will add another hinge segment inboard to the left
wing/aileron |
Pretty good eyes there Jack. We work this Lil furfly pretty hard so Bryan added an extra hinge. Don't think it was really needed but I never argue with "The Master".
If your empty weight is 328 pounds, what do you consider to be your gross
weight limit?
Based on how the Firefly is built in comparison to the other Kolbs, I have no problem giving Him a Gross Weight of 600 lbs. I would Wring Him out at that weight and would not have a problem of an overgross of 650 lbs. Now keep in mind that we added a few other little do dads that your eyes cannot see.
How does the new FireFly empty weight compare to that of the "Puddle
Buster"?
The PuddleBuster is a few pounds underweight but I really would not add anything to Him. By the Way He is for Sale.
Good article
Thanks, I really hate Writing but Mary Jones asked me if I would do this one. I had to do it during the time of John W's death and that really sucked so my heart was not really in it. Thanks for your compliments and how is your new engine project coming along?
Steve B
Firefly 007/Floats
Firefly 0040/ Floats 2008 SnF Grand Champion
do not archive
Gas prices getting you down? Search AOL Autos for fuel-efficient used cars.
[quote][b]
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jbhart(at)onlyinternet.ne
Guest
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| Posted: Mon Jul 07, 2008 4:43 pm Post subject: Sport Pilot article |
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From: N27SB(at)aol.com
Date: Mon, 7 Jul 2008 19:55:25 EDT
| Quote: | .........................
Thanks for your compliments and how is your new engine project coming along?
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| Quote: | ...................
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Steve
Very slow at the moment. I remain in the process digging a walkout for my
basement shop, and the smoothing and seeding the soil surrounding the house.
If it rains to the point that I have to stay in, I work on the engine project.
I have a few experiments to perform on the Bing and the Victor 1+. Richard
Pike gave me an idea of how to change the air fuel mixture in flight. All
the parts have been fabricated and they wait for me to get the new battery
installed, and to make a few test flights. This FireFly has been the best
and most interesting toy!
Jack B. Hart FF004
Winchester, IN
do not archive
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tkrolfe(at)toast.net
Guest
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| Posted: Thu Jul 10, 2008 5:41 am Post subject: Sport Pilot article |
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Jack B. Hart wrote:
| Quote: |
Steve,
I noticed in the leading page photo, that you have four piano hinges per
aileron. This was great to see. My plans called for three, and I am just
about ready to replace the inner hinge pin on the left wing for the second
time at 242 hours. I will add another hinge segment inboard to the left
wing/aileron.
If your empty weight is 328 pounds, what do you consider to be your gross
weight limit?
How does the new FireFly empty weight compare to that of the "Puddle
Buster"?
Good article.
Jack B. Hart FF004
Winchester, IN
Jack,
|
Have been mauling over your need to replace the hinge pin on the left
side twice in just 242 hr.s. I checked out my hinges after reading that
and find no problems with any of them at 870 hr.s.
Curious as to what you think the cause is!!
Terry - FireFly #95
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jbhart(at)onlyinternet.ne
Guest
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| Posted: Thu Jul 10, 2008 6:51 am Post subject: Sport Pilot article |
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At 09:39 AM 7/10/08 -0400, you wrote:
| Quote: |
Jack,
Have been mauling over your need to replace the hinge pin on the left
side twice in just 242 hr.s. I checked out my hinges after reading that
and find no problems with any of them at 870 hr.s.
Curious as to what you think the cause is!!
|
Terry,
There is excessive clearance between the bolt that makes the inner most
aileron hinge pin and the hole in the steel rib. I have tried to shim it
with no success. This transmits a lot of vibration load to the first piano
hinge.
I have thought of taking the aileron off and drilling and bushing the hole
in the steel end rib, but that is too much effort. The other day riding the
mower, I came up with a solution. What I will do is purchase some thin wall
brass tubing at the RC model shop, and some valve grinding paste. I will
slip the tube over the bolt and place a dab of valve grinding compound on
the end and lap out the hole in the steel rib. Then I will cut a short
piece of the tubing off and use it as bearing material between the bolt and
the hole. Next I will JB Weld the tube to the rib which will let me keep a
longer bearing surface length. It should be a permanent fix.
Jack B. Hart FF004
Winchester, IN
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tkrolfe(at)toast.net
Guest
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| Posted: Thu Jul 10, 2008 8:22 am Post subject: Sport Pilot article |
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Jack B. Hart wrote:
| Quote: |
At 09:39 AM 7/10/08 -0400, you wrote:
>
>
> Jack,
>
> Have been mauling over your need to replace the hinge pin on the left
> side twice in just 242 hr.s. I checked out my hinges after reading that
> and find no problems with any of them at 870 hr.s.
>
> Curious as to what you think the cause is!!
>
>
Terry,
There is excessive clearance between the bolt that makes the inner most
aileron hinge pin and the hole in the steel rib. I have tried to shim it
with no success. This transmits a lot of vibration load to the first piano
hinge.
I have thought of taking the aileron off and drilling and bushing the hole
in the steel end rib, but that is too much effort. The other day riding the
mower, I came up with a solution. What I will do is purchase some thin wall
brass tubing at the RC model shop, and some valve grinding paste. I will
slip the tube over the bolt and place a dab of valve grinding compound on
the end and lap out the hole in the steel rib. Then I will cut a short
piece of the tubing off and use it as bearing material between the bolt and
the hole. Next I will JB Weld the tube to the rib which will let me keep a
longer bearing surface length. It should be a permanent fix.
Jack B. Hart FF004
Winchester, IN
Jack,
|
Sounds like a plan!! Wonder how the hole got to be to large, I assume
the right side is OK since you don't have a problem with it.
It would be a disaster to weld or braze the tang so close to the
fabric!! I've used the RC thin wall tubing in similar situations,
should work.
Terry - FireFly # 95
Do Not Archive
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Possums
Joined: 03 Nov 2007
Posts: 247
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| Posted: Thu Jul 10, 2008 4:14 pm Post subject: Sport Pilot article |
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At 12:19 PM 7/10/2008, you wrote:
| Quote: |
Jack B. Hart wrote:
>
>
>At 09:39 AM 7/10/08 -0400, you wrote:
>
>>
>>
>>Jack,
>>
>>Have been mauling over your need to replace the hinge pin on the
>>left side twice in just 242 hr.s. I checked out my hinges after
>>reading that and find no problems with any of them at 870 hr.s.
>>
>>Curious as to what you think the cause is!!
|
I've seen more than one of those hinges next to the engine have
problems before.
I have four also. I have small cotter pins drilled thru both ends of each hinge
so the pin can't "eat" it's way through 750+ hrs. Just squeezing the
ends of the hinge
doesn't always work (if that's what they still tell you to do). The
pin is a lot harder than the
hinge material and will push/rotate/grind it's way out, if it can.
Especially the ones
closest to the engine.
Makes the preflight check easier to do with the cotter pins anyway.
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