Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

[Pulsar-Aviators] Nose gear failure

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Pulsar-List
View previous topic :: View next topic  
Author Message
ccoulter(at)wavecable.com
Guest





PostPosted: Wed May 21, 2014 5:36 pm    Post subject: [Pulsar-Aviators] Nose gear failure Reply with quote

Interested but am not a member of the yahoo net.

Clarke

On Mon, 5 May 2014 15:20:39 -0500
"Tim Engel" <TSEngel(at)comcast.net> wrote:
Quote:

<TSEngel(at)comcast.net>

I've created a folder in the Pulsar-Aviators Files
section titled:
Pulsar XP - Nose Gear Modifications
http://tinyurl.com/lmf5zxh

There are three files in it:

1) Pulsar III - SkyStar Nose Wheel Exploded Parts
DRAWING.jpg
.... SkyStar's Pulsar III Nose Gear Design for
Comparison
2) Pulsar XP - Nose Gear Modification - Drawing, Bob
Hartunian.jpg
3) Pulsar XP - Nose Gear Modification - Smith-Hartunian,
Koval.doc

The first is just an exploded parts diagram of the
SkyStar Pulsar III nose gear design for comparison.
Something supporting a similar weight FWF package
without breaking.

I believe the second file is the modification drawing
done by Bob Hartunian and Greg Smith that Herbert
inquired about.

The third is a Word.doc I threw together from clippings
of posts on Pulsar-Aviators about the Greg Smith/ Bob
Hartunian modification, and the similar but different mod
done by Ron Koval. It's a rough 1st Draft. I've not
designed anything, and don't claim to have any answers,
but I'm hoping Greg, Bob and Ron, and anyone else who
has done a similar modification will proof read it and
offer additional content. With enough input, perhaps we
can come up with a go-to document that owners can
reference when, or hopefully before the need arises.

I'll do the keyboard work to put together the Word.doc,
if that's what it takes. But I need some input...
like, "All" the input.

If you suggest a change or addition, then flesh it out.
Don't suggest a vague idea like you think I'm going to
design it. Won't happen. I'll try to collate the
document to include the good design work and execution of
others, "IF" they're okay with that; but I'm in no
position to design an aircraft landing gear. If I did,
you wouldn't want it on your plane!

*~*~*

In that Word.doc, I included a few questions that came
to mind before I even started writing. Let's start
there, plus anything else you think of.

1) Are all new 4130 steel parts to be used without
additional heat treating/ stress relieving? Bob?

2) The Pulsar XP nose gear design used a alternating
stack of 6 Belleville Spring Washers, sandwiched between
two thrust washers. I don’t see the Belleville washers
documented in the Smith/ Hartunian design, but Ron Koval
at least mentions them (ie, says he has extras for sale).
Are the Belleville washers still used in either or both
of those designs? For now, I’ve included them in the
"Materials" lists.

2) Skystar’s Pulsar III nose gear design appears to use
two “top hat” bushings in the vertical “Sleeve” (boss/
trunnion), one top and
one bottom. Do your designs do anything about friction
other than a little lubrication?

3) Any thoughts on a recommended torque value to use
when assembling the new pivot?

Regards,
Tim Engel



From: Greg Smith, gregsmi(at)aol.com
To: pulsar-list(at)matronics.com;
Pulsar-Aviators(at)yahoogroups.com
Sent: Saturday, May 3, 2014 8:42 AM
Subj: [Pulsar-Aviators] Nose gear failure

Clarke Coulter just reported his nose gear failed on
take off. His landing was uneventful but the plane did
sustain damage. His nose gear is the Aerodesigns gear
with the spindle shaft welded inside a collar. Since the
failure is occurring inside the collar, there is no way
to inspect.

If you have one of these nose gears you should look on
the forum to see what modifications others have done to
make this area stronger and easy to inspect. It could
save you from having to rebuild your aircraft.

Un/Subscription,
Forums!
Admin.





- The Matronics Pulsar-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Pulsar-List
Back to top
docyukon(at)ptcnet.net
Guest





PostPosted: Wed May 21, 2014 6:09 pm    Post subject: [Pulsar-Aviators] Nose gear failure Reply with quote

Clark Was thair a prop strike on landing, also was thair any fuselodge
structual damage other than the firewall and lower cawel. Bill S.


- The Matronics Pulsar-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Pulsar-List
Back to top
TomisFlyingby(at)comcast.
Guest





PostPosted: Wed May 21, 2014 7:26 pm    Post subject: [Pulsar-Aviators] Nose gear failure Reply with quote

Ron,

I know this is really late but do you still have any of the nose gear modification parts left? Where did you have yours done?

Thanks,
Tom

From: Ron Koval (ronko(at)att.net)
Sent: Monday, May 05, 2014 10:00 AM
To: Pulsar-Aviators(at)yahoogroups.com (Pulsar-Aviators(at)yahoogroups.com) ; Pulsar Builders (Pulsar-List(at)matronics.com)
Subject: Re: [Pulsar-Aviators] Nose gear failure




Having done modification last year, I still have about 7 inches left over (you only need about 3-1/2") from the Aircraft Spruce purchase of 4130 STEEL TUBE 1X.188 1FT
Part #: 03-06800-1 to make this modification (along with your own 5/8" bolt, etc.). $5 plus shipping cost, its yours. Add another $5 and I'll include 2 brand new belleville washers.

Ronko

From: "gregsmi(at)aol.com" <gregsmi(at)aol.com>
To: pulsar-list(at)matronics.com; Pulsar-Aviators(at)yahoogroups.com
Sent: Saturday, May 3, 2014 8:42 AM
Subject: [Pulsar-Aviators] Nose gear failure



Clarke Coulter just reported his nose gear failed on take off. His landing was uneventful but the plane did sustain damage. His nose gear is the Aerodesigns gear with the spindle shaft welded inside a collar. Since the failure is occurring inside the collar, there is no way to inspect.

If you have one of these nose gears you should look on the forum to see what modifications others have done to make this area stronger and easy to inspect. It could save you from having to rebuild your aircraft.

__._,_.___

Reply to sender ([email]GREGSMI(at)aol.com?subject=Re%3A%20Nose%20gear%20failure[/email]) • Reply to group ([email]Pulsar-Aviators(at)yahoogroups.com?subject=Re%3A%20Nose%20gear%20failure[/email]) • Start a New TopicMessages in this topic (1)
Visit Your Group
Unsubscribe ([email]Pulsar-Aviators-unsubscribe(at)yahoogroups.com?subject=Unsubscribe[/email]) • Terms of Use


.
[img]http://geo.yahoo.com/serv?s=97359714/grpId=13031253/grpspId=1705786083/msgId=6113/stime=1399124546[/img] [img]http://y.analytics.yahoo.com/fpc.pl?ywarid=515FB27823A7407E&a=10001310322279&js=no&resp=img[/img] __,_._,___
#yiv9035144893 #yiv9035144893 -- #yiv9035144893ygrp-mkp { border:1px solid #d8d8d8;font-family:arial;margin:10px 0;padding:0 10px;} #yiv9035144893 #yiv9035144893ygrp-mkp hr { border:1px solid #d8d8d8;} #yiv9035144893 #yiv9035144893ygrp-mkp #yiv9035144893hd { color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;} #yiv9035144893 #yiv9035144893ygrp-mkp #yiv9035144893ads { margin-bottom:10px;} #yiv9035144893 #yiv9035144893ygrp-mkp .yiv9035144893ad { padding:0 0;} #yiv9035144893 #yiv9035144893ygrp-mkp .yiv9035144893ad p { margin:0;} #yiv9035144893 #yiv9035144893ygrp-mkp .yiv9035144893ad a { color:#0000ff;text-decoration:none;} #yiv9035144893 #yiv9035144893ygrp-sponsor #yiv9035144893ygrp-lc { font-family:arial;} #yiv9035144893 #yiv9035144893ygrp-sponsor #yiv9035144893ygrp-lc #yiv9035144893hd { margin:10px 0px;font-weight:700;font-size:78%;line-height:122%;} #yiv9035144893 #yiv9035144893ygrp-sponsor #yiv9035144893ygrp-lc .yiv9035144893ad { margin-bottom:10px;padding:0 0;} #yiv9035144893 #yiv9035144893actions { font-family:verdana;font-size:11px;padding:10px 0;} #yiv9035144893 #yiv9035144893activity { background-color:#e0ecee;float:left;font-family:verdana;font-size:10px;padding:10px;} #yiv9035144893 #yiv9035144893activity span { font-weight:700;} #yiv9035144893 #yiv9035144893activity span:first-child { text-transform:uppercase;} #yiv9035144893 #yiv9035144893activity span a { color:#5085b6;text-decoration:none;} #yiv9035144893 #yiv9035144893activity span span { color:#ff7900;} #yiv9035144893 #yiv9035144893activity span .yiv9035144893underline { text-decoration:underline;} #yiv9035144893 .yiv9035144893attach { clear:both;display:table;font-family:arial;font-size:12px;padding:10px 0;width:400px;} #yiv9035144893 .yiv9035144893attach div a { text-decoration:none;} #yiv9035144893 .yiv9035144893attach img { border:none;padding-right:5px;} #yiv9035144893 .yiv9035144893attach label { display:block;margin-bottom:5px;} #yiv9035144893 .yiv9035144893attach label a { text-decoration:none;} #yiv9035144893 blockquote { margin:0 0 0 4px;} #yiv9035144893 .yiv9035144893bold { font-family:arial;font-size:13px;font-weight:700;} #yiv9035144893 .yiv9035144893bold a { text-decoration:none;} #yiv9035144893 dd.yiv9035144893last p a { font-family:verdana;font-weight:700;} #yiv9035144893 dd.yiv9035144893last p span { margin-right:10px;font-family:verdana;font-weight:700;} #yiv9035144893 dd.yiv9035144893last p span.yiv9035144893yshortcuts { margin-right:0;} #yiv9035144893 div.yiv9035144893attach-table div div a { text-decoration:none;} #yiv9035144893 div.yiv9035144893attach-table { width:400px;} #yiv9035144893 div.yiv9035144893file-title a, #yiv9035144893 div.yiv9035144893file-title a:active, #yiv9035144893 div.yiv9035144893file-title a:hover, #yiv9035144893 div.yiv9035144893file-title a:visited { text-decoration:none;} #yiv9035144893 div.yiv9035144893photo-title a, #yiv9035144893 div.yiv9035144893photo-title a:active, #yiv9035144893 div.yiv9035144893photo-title a:hover, #yiv9035144893 div.yiv9035144893photo-title a:visited { text-decoration:none;} #yiv9035144893 div#yiv9035144893ygrp-mlmsg #yiv9035144893ygrp-msg p a span.yiv9035144893yshortcuts { font-family:verdana;font-size:10px;font-weight:normal;} #yiv9035144893 .yiv9035144893green { color:#628c2a;} #yiv9035144893 .yiv9035144893msonormal { margin:0 0 0 0;} #yiv9035144893 o { font-size:0;} #yiv9035144893 #yiv9035144893photos div { float:left;width:72px;} #yiv9035144893 #yiv9035144893photos div div { border:1px solid #666666;height:62px;overflow:hidden;width:62px;} #yiv9035144893 #yiv9035144893photos div label { color:#666666;font-size:10px;overflow:hidden;text-align:center;white-space:nowrap;width:64px;} #yiv9035144893 #yiv9035144893reco-category { font-size:77%;} #yiv9035144893 #yiv9035144893reco-desc { font-size:77%;} #yiv9035144893 .yiv9035144893replbq { margin:4px;} #yiv9035144893 #yiv9035144893ygrp-actbar div a:first-child { margin-right:2px;padding-right:5px;} #yiv9035144893 #yiv9035144893ygrp-mlmsg { font-size:13px;font-family:arial, helvetica, clean, sans-serif;} #yiv9035144893 #yiv9035144893ygrp-mlmsg table { font-size:inherit;font:100%;} #yiv9035144893 #yiv9035144893ygrp-mlmsg select, #yiv9035144893 input, #yiv9035144893 textarea { font:99% arial, helvetica, clean, sans-serif;} #yiv9035144893 #yiv9035144893ygrp-mlmsg pre, #yiv9035144893 code { font:115% monospace;} #yiv9035144893 #yiv9035144893ygrp-mlmsg * { line-height:1.22em;} #yiv9035144893 #yiv9035144893ygrp-mlmsg #yiv9035144893logo { padding-bottom:10px;} #yiv9035144893 #yiv9035144893ygrp-msg p a { font-family:verdana;} #yiv9035144893 #yiv9035144893ygrp-msg p#yiv9035144893attach-count span { color:#1e66ae;font-weight:700;} #yiv9035144893 #yiv9035144893ygrp-reco #yiv9035144893reco-head { color:#ff7900;font-weight:700;} #yiv9035144893 #yiv9035144893ygrp-reco { margin-bottom:20px;padding:0px;} #yiv9035144893 #yiv9035144893ygrp-sponsor #yiv9035144893ov li a { font-size:130%;text-decoration:none;} #yiv9035144893 #yiv9035144893ygrp-sponsor #yiv9035144893ov li { font-size:77%;list-style-type:square;padding:6px 0;} #yiv9035144893 #yiv9035144893ygrp-sponsor #yiv9035144893ov ul { margin:0;padding:0 0 0 8px;} #yiv9035144893 #yiv9035144893ygrp-text { font-family:georgia;} #yiv9035144893 #yiv9035144893ygrp-text p { margin:0 0 1em 0;} #yiv9035144893 #yiv9035144893ygrp-text tt { font-size:120%;} #yiv9035144893 #yiv9035144893ygrp-vital ul li:last-child { border-right:none !important; } #yiv9035144893
[quote]

href="http://www.matronics.com/Navigator?Pulsar-List">http://www.matronhref="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
[b]


- The Matronics Pulsar-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Pulsar-List
Back to top
ccoulter(at)wavecable.com
Guest





PostPosted: Thu May 22, 2014 7:12 am    Post subject: [Pulsar-Aviators] Nose gear failure Reply with quote

Bill

Yes there was a prop strike. I don't think it damaged the
engine tho. There was a small area of damage to the left
side.

Clarke
On Wed, 21 May 2014 21:08:45 -0500
"Bill S" <docyukon(at)ptcnet.net> wrote:
Quote:

<docyukon(at)ptcnet.net>

Clark Was thair a prop strike on landing, also was
thair any fuselodge structual damage other than the
firewall and lower cawel. Bill S.

Un/Subscription,
Forums!
Admin.





- The Matronics Pulsar-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Pulsar-List
Back to top
PreCompTech



Joined: 29 Jun 2013
Posts: 16
Location: Scappoose, OR

PostPosted: Mon Jun 15, 2015 4:09 pm    Post subject: Re: [Pulsar-Aviators] Nose gear failure Reply with quote

What is the required thickness of the Belleville spring washers that are used in the fork assembly?

- The Matronics Pulsar-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Pulsar-List

_________________
Kris Anderson, Owner
Precision Composites Technologies, LLC
509-521-7564
www.precomptech.com
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Pulsar-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group