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MJKTuck(at)cs.com
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 Posted: Thu Apr 14, 2011 7:48 pm Post subject: Mono Landing Gear Question |
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When I replaced the brakes recently I thought the red rubber block (that
has the vee's cut in it) which forms part of the landing gear suspension
was looking a bit tired. I looked at some early photos of the aircraft
and sure enough the top of the tire seems to be inline with the bottom
of the fuselage whereas now the top of the tire is inside the wheel well
by maybe 1/2 inch or so and both outriggers touch the ground whereas the
aircraft used to tip from one to the other slightly.
I assume I have to get a new block from Europa in the UK - but if it is
something I can get here I guess it makes sense to buy it here and save
on shipping costs. Same with the bungee cord which I might think about
replacing at the same time.
Anyone have to replace their block yet - if so, where can you get one?
How about the bungee - what is the spec?
I seem to recall someone coming up with an alternative solution to the
bungee but I can't recall what is was. I think it included some kind of
up-lock also.
Any help would be appreciated.
Regards,
Martin Tuck
N152MT
Wichita, Kansas
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davidjoyce(at)doctors.org
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| Posted: Fri Apr 15, 2011 12:45 am Post subject: Mono Landing Gear Question |
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Martin, Although Europa sell them (for £70+ as I remember it) there is a
supply of spare U/C bits around (in the UK at least) from those who have
converted their monos to trikes. Maybe you can find something similar in
your neck of the woods. Incidentally all the 'rubber' blocks I have seen are
black!
Regards, David Joyce G-XSDJ
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pete(at)lawless.info
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| Posted: Fri Apr 15, 2011 1:21 am Post subject: Mono Landing Gear Question |
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David
The red block was the original as supplied with the early kits. The black
one arrived as a replacement while I was still building. The red one gave
the wrong sort of bounce or something. Cut on the diagonal the red block
makes a great pair of chocks.
Pete
--
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Justin(at)systemwise.co.u
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| Posted: Fri Apr 15, 2011 1:36 am Post subject: Mono landing gear question |
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Hi Martin,
I was at LAA Sywell Rally last year and the subject of landing gear blocks came up. It transpired that most of the mono guys had black blocks. Now mine is red, like yours, so I contacted Europa and apparently the red block was superseded by the black one some time ago.
My permit inspection next week so I will be fitting the new black block this weekend. I am of course hoping that it will transform the aircraft into a docile puppy on landing however I fear it won’t make a huge difference.
I will let you know if I notice any difference.
I have just fitted a Trio ProPilot this winter so I can’t wait to get flying again.
Justin
G-ZTED Europa Classic Monwheel 912ULS Airmaster A332
[quote][b]
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acrojim7534(at)YAHOO.COM
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| Posted: Fri Apr 15, 2011 3:47 am Post subject: Mono Landing Gear Question |
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Martin, I just completed replacement of the rubber block, (black), bungee cord, and all of the bronze bushing in my plane..I used 3/8 inch bungee cord from aircraft spruce. I purchased 30 feet of cord. and used about 25 feet. You will need the extra length to have something to hold onto while you are wraping the cord around the frame.
You can tell if the bungee cord needs replacing by how hard it is to retract the gear... My original bungee cord had 7 wrap's around the frame.and so I replace with same number. My gear had reached the point that it took a hard push to get gear retracted.. I have 850. hours on the original setup.and 10 years time in service.. I also replaced all of the bronze bushings while I had the gear laying on the hanger floor.
The rebuild made a big difference in the gear retraction cycle, airframe set up higher, much easier to retract the gear. You will probably need to extend the outriggers. Buy new nylon replacement at Aircraft Spruce.. They have it in various diameters. You need the one and a quarter inch in diameter size..check yours to make certain...They sell it by the foot....
I have pictures of the whole operation, if you need to see.....
Jim Brown
From: Martin Tuck <MJKTuck(at)cs.com>
To: Europa Builders Forum <europa-list(at)matronics.com>
Sent: Thu, April 14, 2011 11:42:03 PM
Subject: Europa-List: Mono Landing Gear Question
--> Europa-List message posted by: Martin Tuck <MJKTuck(at)cs.com (MJKTuck(at)cs.com)>
When I replaced the brakes recently I thought the red rubber block (that has the vee's cut in it) which forms part of the landing gear suspension was looking a bit tired. I looked at some early photos of the aircraft and sure enough the top of the tire seems to be inline with the bottom of the fuselage whereas now the top of the tire is inside the wheel well by maybe 1/2 inch or so and both outriggers touch the ground whereas the aircraft used to tip from one to the other slightly.
I assume I have to get a new block from Europa in the UK - but if it is something I can get here I guess it makes sense to buy it here and save on shipping costs. Same with the bungee cord which I might think about replacing at the same time.
Anyone have to replace their block yet - if so, where can you get one? How about the bungee - what is the spec?
I seem to recall someone coming up with an alternative solution to the bungee but I can't recall what is was. I think it included some kind of up-lock also.
Any help would be appreciated.
Regards,
Martin Tuck
[quote][b]
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egp8111
Joined: 25 Mar 2010
Posts: 49
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| Posted: Fri Apr 15, 2011 6:42 am Post subject: Re: Mono Landing Gear Question |
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timely post ! I just bought back the Europa I built 15 yrs. ago (long story) and when I got it home I wondered what that red stuff was that was falling out of the gear well. Yep, the old rubber block ! Anyone with one on these they are using for a door stop or whatever please PM me.
thanks,
E. G.
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MJKTuck(at)cs.com
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| Posted: Fri Apr 15, 2011 9:53 am Post subject: Mono Landing Gear Question |
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Hi Jim,
Thanks as always for your response. I would like to see your photos yes. I'm particularly interested in your method of lifting (and keeping) the aircraft up such that you can work on the gear.
Where did you get the (seems like black is the standard now) block? Someone claimed Europa wanted UKL70 for it - which I find hard to believe! I assume you no longer have to cut a couple of V's in it to make it less bouncy?
Regards,
Martin
On 4/15/2011 6:44 AM, Jim Brown wrote: [quote] Martin, I just completed replacement of the rubber block, (black), bungee cord, and all of the bronze bushing in my plane..I used 3/8 inch bungee cord from aircraft spruce. I purchased 30 feet of cord. and used about 25 feet. You will need the extra length to have something to hold onto while you are wraping the cord around the frame.
You can tell if the bungee cord needs replacing by how hard it is to retract the gear... My original bungee cord had 7 wrap's around the frame.and so I replace with same number. My gear had reached the point that it took a hard push to get gear retracted.. I have 850. hours on the original setup.and 10 years time in service.. I also replaced all of the bronze bushings while I had the gear laying on the hanger floor.
The rebuild made a big difference in the gear retraction cycle, airframe set up higher, much easier to retract the gear. You will probably need to extend the outriggers. Buy new nylon replacement at Aircraft Spruce.. They have it in various diameters. You need the one and a quarter inch in diameter size..check yours to make certain...They sell it by the foot....
I have pictures of the whole operation, if you need to see.....
Jim Brown
[b]
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acrojim7534(at)YAHOO.COM
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| Posted: Fri Apr 15, 2011 11:45 am Post subject: Mono Landing Gear Question |
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Martin;
I got the rubber block several years ago...from someone who had decided to build the tri-gear. I would contact Bud Yearly, he has done several conversions from the mono-wheel to a tri-gear... He may have one from a conversion.......
The bushings are american size, not metric. They fit AN bolts..I found mine at a hardware store......They are just bronze bushing,
Attached are pics of the conversion...I can tell you for certain that it is a dirty, dirty, job.......make friends with your wife, before you give her the old dirty clothes.........
I will send the pictures in two different groups.
From: Martin Tuck <MJKTuck(at)cs.com>
To: europa-list(at)matronics.com
Sent: Fri, April 15, 2011 1:49:57 PM
Subject: Re: Mono Landing Gear Question
Hi Jim,
Thanks as always for your response. I would like to see your photos yes. I'm particularly interested in your method of lifting (and keeping) the aircraft up such that you can work on the gear.
Where did you get the (seems like black is the standard now) block? Someone claimed Europa wanted UKL70 for it - which I find hard to believe! I assume you no longer have to cut a couple of V's in it to make it less bouncy?
Regards,
Martin
On 4/15/2011 6:44 AM, Jim Brown wrote: | Quote: | Martin, I just completed replacement of the rubber block, (black), bungee cord, and all of the bronze bushing in my plane..I used 3/8 inch bungee cord from aircraft spruce. I purchased 30 feet of cord. and used about 25 feet. You will need the extra length to have something to hold onto while you are wraping the cord around the frame.
You can tell if the bungee cord needs replacing by how hard it is to retract the gear... My original bungee cord had 7 wrap's around the frame.and so I replace with same number. My gear had reached the point that it took a hard push to get gear retracted.. I have 850. hours on the original setup.and 10 years time in service.. I also replaced all of the bronze bushings while I had the gear laying on the hanger floor.
The rebuild made a big difference in the gear retraction cycle, airframe set up higher, much easier to retract the gear. You will probably need to extend the outriggers. Buy new nylon replacement at Aircraft Spruce.. They have it in various diameters. You need the one and a quarter inch in diameter size..check yours to make certain...They sell it by the foot....
I have pictures of the whole operation, if you need to see.....
Jim Brown
<================== [/b] |
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member(at)flyers.freeserv
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| Posted: Fri Apr 15, 2011 2:32 pm Post subject: Mono Landing Gear Question |
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[quote]We changed the block from red to black a year ago with no noticeable difference to the landing characteristics.Would also suggest that the shock absorbers are replaced when you change the rubber block.Also it is worth removing the bearing end caps on the undercarriage swinging arm to check there is no corrosion on the frame itself. This is usually the main culprit when raising the undercarriage becomes difficult (ie: rust/ corrosion). Its easy to do this even when the whole undercarriage is assembled (ie: with the bungee cords in place - in fact this makes it easier as the bungee supports the swinging arm).Carl & DotG-LABS | Quote: | ========================================Message Received: Apr 15 2011, 12:50 PMFrom: "Jim Brown" To: europa-list(at)matronics.comCc: Subject: Re: Mono Landing Gear Question
Martin, I just completed replacement of the rubber block, (black), bungee cord, and all of the bronze bushing in my plane..I used 3/8 inch bungee cord from aircraft spruce. I purchased 30 feet of cord. and used about 25 feet. You will need the extra length to have something to hold onto while you are wraping the cord around the frame.
You can tell if the bungee cord needs replacing by how hard it is to retract the gear... My original bungee cord had 7 wrap's around the frame.and so I replace with same number. My gear had reached the point that it took a hard push to get gear retracted.. I have 850. hours on the original setup.and 10 years time in service.. I also replaced all of the bronze bushings while I had the gear laying on the hanger floor.
The rebuild made a big difference in the gear retraction cycle, airframe set up higher, much easier to retract the gear. You will probably need to extend the outriggers. Buy new nylon replacement at Aircraft Spruce.. They have it in various diameters. You need the one and a quarter inch in diameter size..check yours to make certain...They sell it by the foot....
I have pictures of the whole operation, if you need to see.....
Jim Brown
From: Martin Tuck To: Europa Builders Forum Sent: Thu, April 14, 2011 11:42:03 PMSubject: Mono Landing Gear Question--> Europa-List message posted by: Martin Tuck <MJKTuck(at)cs.com (MJKTuck(at)cs.com)>When I replaced the brakes recently I thought the red rubber block (that has the vee's cut in it) which forms part of the landing gear suspension was looking a bit tired. I looked at some early photos of the aircraft and sure enough the top of the tire seems to be inline with the bottom of the fuselage whereas now the top of the tire is inside the wheel well by maybe 1/2 inch or so and both outriggers touch the ground whereas the aircraft used to tip from one to the other slightly.I assume I have to get a new block from Europa in the UK - but if it is something I can get here I guess it makes sense to buy it here and save on shipping costs. Same with the bungee cord which I might think about replacing at the same time.Anyone have to replace their block yet - if so, where can you get one? How about the bungee - what is the spec?I seem to recall someone coming up with an alternative solution to the bungee but I can't recall what is was. I think it included some kind of up-lock also.Any help would be appreciated.Regards,Martin Tuck | Quote: | | http://forums.matronics.c"http://www.matronics.com/contribution">http://www.matronics.com/contributi============= |
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