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[Pulsar-Aviators] Damaged main gear

 
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gregsmi



Joined: 01 Jan 2011
Posts: 268
Location: Topeka, KS
PostPosted: Sat Apr 13, 2013 4:19 am    Post subject: [Pulsar-Aviators] Damaged main gear Reply with quote
I am aware of the Grove gear. We have a few Pulsars flying with it. I just
do not believe it is the best option for the Pulsar and prefer the glass
gear. I plan to talk about this at the Pulsar reunion this year, as well as
the nose gear.

Greg


In a message dated 4/12/2013 10:22:09 P.M. Central Daylight Time,
mnugents70(at)yahoo.com writes:




_Www.groveaircraft.com_ (http://www.groveaircraft.com/)

Sent from my iPad

On Apr 12, 2013, at 10:48 PM, Chris Horsten <_cphorsten(at)yahoo.ca_
(mailto:cphorsten(at)yahoo.ca) > wrote:


Greg, is there no aluminum option?
Sent from my iPlane.

On 2013-04-12, at 6:55 PM, _gregsmi(at)aol.com_ (mailto:gregsmi(at)aol.com)
wrote:



OK guys, seems no one has a glass gear for sale so I have decided to make
a good mold. Does anyone have a cracked gear I can use as a plug for the
mold? If not, does anyone have a gear I can borrow long enough to make the
mold?

Once I have the mold, I will be able to make gears for anyone that needs
one.

Thanks
Greg Smith

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rwilhelm(at)dc.rr.com
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PostPosted: Sat Apr 13, 2013 9:26 am    Post subject: [Pulsar-Aviators] Damaged main gear Reply with quote
I think the Grove gear is best for the heavier Pulsar II & III. It certainly is in my case. It is more flexible then the glass gear was on landings.



Ray Pulsar III/3300





From: owner-pulsar-list-server(at)matronics.com [mailto:owner-pulsar-list-server(at)matronics.com] On Behalf Of GREGSMI(at)aol.com
Sent: Saturday, April 13, 2013 5:18 AM
To: Pulsar-Aviators(at)yahoogroups.com; pulsar-list(at)matronics.com
Subject: Re: [Pulsar-Aviators] Damaged main gear



I am aware of the Grove gear. We have a few Pulsars flying with it. I just do not believe it is the best option for the Pulsar and prefer the glass gear. I plan to talk about this at the Pulsar reunion this year, as well as the nose gear.



Greg



In a message dated 4/12/2013 10:22:09 P.M. Central Daylight Time, mnugents70(at)yahoo.com writes:



Www.groveaircraft.com <http://www.groveaircraft.com/>

Sent from my iPad
On Apr 12, 2013, at 10:48 PM, Chris Horsten <cphorsten(at)yahoo.ca> wrote:



Greg, is there no aluminum option?

Sent from my iPlane.
On 2013-04-12, at 6:55 PM, gregsmi(at)aol.com wrote:



OK guys, seems no one has a glass gear for sale so I have decided to make a good mold. Does anyone have a cracked gear I can use as a plug for the mold? If not, does anyone have a gear I can borrow long enough to make the mold?



Once I have the mold, I will be able to make gears for anyone that needs one.



Thanks

Greg Smith

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gregsmi



Joined: 01 Jan 2011
Posts: 268
Location: Topeka, KS
PostPosted: Mon Apr 15, 2013 9:05 am    Post subject: [Pulsar-Aviators] Damaged main gear Reply with quote
The gear is made out of multiple layers of 17 oz. uni-directional glass of
varying lengths. I have planned a talk about this at the reunion.

The aluminum gear is much stronger than the attach points inside the
fuselage. A hard landing, a bad bounce, may not fail the gear but could fail the
attach points inside the fuselage. I like the idea of the gear absorbing
the stress.

Replacing the gear is a job. The bottom of the fuselage must be cut out the
same as when building. For ease of positioning the new gear, any wiring
and rudder control cables that are routed under the gear need to be moved out
of the way. Brake cables or brake lines should be removed or the axils
detached from the gear. Unbolt gear and remove from fuselage.

If you are repairing the gear, pay very close attention to the alignment of
the tabs. They must match up to the holes in the attach points inside the
fuselage. If you don't get them lined up correctly, then you will have to
replace the gear tabs and most likely the hard points inside the fuselage.
That turns a big job into a huge job. You will have to follow the
construction manual in glassing the hard points, paying very close attention to the
use of uni-directional glass.

That's my thoughts and I am sure there are more opinions on this and some
input from those that have replaced or repaired their gear.

Greg




In a message dated 4/15/2013 9:58:42 A.M. Central Daylight Time,
cphorsten(at)yahoo.ca writes:




Hi Greg,

I'm wondering, can you tell us how these legs are made? You mentioned
making a plug, but obviously the legs aren't hollow. Will you have to lay up a
structure one layer at a time? What would a cross section look like if you
cut one up?
Why are the aluminum ones not so great?

lastly, since I didn't actually build my Pulsar, what is the process for
replacing a damaged gear?

Thanks for taking this on. Might be good stuff for the reunion too?

Chris H
Pulsar C-GYSJ



____________________________________
From:


"gregsmi(at)aol.com" <gregsmi(at)aol.com>
To: Pulsar-Aviators(at)yahoogroups.com
Sent: Monday, April 15, 2013 8:10:56 AM
Subject: Re: [Pulsar-Aviators] Damaged main gear



Mile. I would have to take the tabs off. Would that be OK?

Greg


In a message dated 4/14/2013 10:53:35 P.M. Central Daylight Time,
mvmccann(at)gmail.com writes:



Greg, I have the true "original" gear from AD. I had installed it, but
then AD came out with the strengthened glass gear and suggested I pull the
original and use the revised gear.
I think the outside dimensions are identical if you want to use if for a
mold. It still has the aluminum/glass attach tabs on it.
Regards, Mike

On Fri, Apr 12, 2013 at 4:29 PM, Bernie <_bberger44(at)yahoo.com_
(mailto:bberger44(at)yahoo.com) > wrote:



Sent from my Verizon iPhone

On Apr 12, 2013, at 3:55 PM, _gregsmi(at)aol.com_ (mailto:gregsmi(at)aol.com)
wrote:




OK guys, seems no one has a glass gear for sale so I have decided to make
a good mold. Does anyone have a cracked gear I can use as a plug for the
mold? If not, does anyone have a gear I can borrow long enough to make the
mold?

Once I have the mold, I will be able to make gears for anyone that needs
one.

Thanks
Greg Smith


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