subject:"KR> Gear legs."

KR>gear legs

2021-08-15 Thread Flesner




As to our discussion on gear legs, does anyone have info on this nice 
looking KR in Poland?


https://www.youtube.com/watch?v=M8wpv9H_sBw

Larry Flesner

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KR>gear legs, plans, KR Forum, etc....

2021-07-30 Thread Mark Langford

This effort to source gear legs fits right in with the main topic of
this year's OSH KR Forum, which is the inability to source KR specific
parts. The question of where to get certain KR parts (not to mention
plans) is a recurring theme, and it's becoming clear that most of these
are no longer available. For that reason, I think the prudent course
is for KRnet list members to step up to the plate and solve this, one
person at a time.

One example is nose gear. The nose-gear most folks have used for years
is unobtainable, and honestly, has had failures resulting in dead props
and cowlings (usually due to hard landings). Robert Pesak came up with
his own design, which consists of a fiberglass spring and some rubber
dampers. Fabrication is a DIY job, not requiring CNC tubing benders,
but a simple welder (if I recall correctly) and some attachment points
to the engine mount. Robert and I plan to get together and draw up the
details in the next few weeks, and post the drawings on KRnet for others
to replicate. If somebody wants to make those and sell them to others
(if Robert's not interested), problem solved! There are many more
examples, such as control sticks, flap handles, landing gear legs or
brackets, and one that Jeff Lang mentioned at OSH, the phenolic drive
pucks that go between the generator and crankshaft on a certain VW
implementation (I forget which one). There's a large number of such
projects, and I think we should do our best to create detailed drawings
to post on www.krnet.org, and interested DIY guys could make (or have
made) several of each so that they are ready to sell and ship to other
KR builders. This is exactly the same system that the early KR
Newsletter spawned, with ads in each issue for these kinds of components.

So please give some thought to what you might need or can make to sell
to other builders, so we can all continue to find the special parts that
we all need to finish up our planes.

Thanks
--
Mark Langford
m...@n56ml.com
http://www.n56ml.com
Huntsville, AL

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Re: KR> Gear legs - G loading

2018-06-26 Thread Rllanning via KRnet

Thanks I think he just wants something he run through the copy machine or fax 
maybe not sure
But the one in the plans will have to do.

Sent from my iPad

> On Jun 26, 2018, at 5:46 AM, Mark Langford via KRnet  
> wrote:
> 
> Rick Lanning wrote:
> 
> > My FSDO is coming July 3 to my airworthiness certificate he wants a 3 D 
> > drawing what did you use for that the one broke apart in the book? I hope 
> > that is good for Him.
> 
> If I understand what you mean, I would bet money the guy will pass you 
> without a 3D drawing, but the one that comes with the plans (and likely 
> appears in many places in the old Newsletters) would certainly qualify as a 
> 3D drawing.  He may only want that to collect all of his "squawks" on you 
> you'll know what needs fixing, if anything, or maybe he just wants to 
> understand the design better (which I doubt).
> 
> Mark Langford
> m...@n56ml.com
> http://www.n56ml.com
> 
> 
> ___
> Search the KRnet Archives at 
> https://www.mail-archive.com/krnet@list.krnet.org/.
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Re: KR> Gear legs - G loading

2018-06-26 Thread Mark Langford via KRnet


Rick Lanning wrote:

> My FSDO is coming July 3 to my airworthiness certificate he wants a 3 
D drawing what did you use for that the one broke apart in the book? I 
hope that is good for Him.


If I understand what you mean, I would bet money the guy will pass you 
without a 3D drawing, but the one that comes with the plans (and likely 
appears in many places in the old Newsletters) would certainly qualify 
as a 3D drawing.  He may only want that to collect all of his "squawks" 
on you you'll know what needs fixing, if anything, or maybe he just 
wants to understand the design better (which I doubt).


Mark Langford
m...@n56ml.com
http://www.n56ml.com


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Re: KR> Gear legs - G loading

2018-06-25 Thread Flesner via KRnet


On 6/25/2018 3:10 PM, Rllanning via KRnet wrote:

My FSDO is coming July 3 to my airworthiness certificate he wants a 3 D drawing 
what did you use for that the one broke apart in the book? I hope that is good 
for Him.


++


Try this one

https://i.pinimg.com/originals/a4/93/83/a4938339405504b8b75a9a62b765582b.jpg


Larry Flesner


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Re: KR> Gear legs - G loading

2018-06-25 Thread Daniel Heath via KRnet

YOU MAY Be able to use this:

http://krbuilder.org/WeightAndBalance/WB_Documents.html

Scroll down.  

My Panther Building Documentation at PantherBuilder Web Site

Daniel R. Heath - Lexington, SC

-Original Message-
From: KRnet [mailto:krnet-boun...@list.krnet.org] On Behalf Of Rllanning via
KRnet
Sent: Monday, June 25, 2018 4:10 PM
To: KRnet
Cc: Rllanning
Subject: Re: KR> Gear legs - G loading

Mark
My FSDO is coming July 3 to my airworthiness certificate he wants a 3 D
drawing what did you use for that the one broke apart in the book? I hope
that is good for Him.

Sent from my iPad

> On Jun 14, 2018, at 3:18 AM, Mark Langford via KRnet
 wrote:
> 
> 
> That's the first I've heard of issues with the nose dropping abruptly on
> the tri-gear versions, so it looks like a bit more investigation is in
> order.  I've seen drawings in the aircraft design books regarding
> recommended gear angles with respect to CG for both conventional and
> tri-gear installations, and will fish those out when I get I chance.
> Pazmany did some especially good work in this area, with fairly precise
> descriptions for the geometry of both gear types.   Any anecdotal
> information from KR pilots (with reasonable CGs and some hours of KR
> flying experience) who've noticed the nose dropping suddenly on their
> tri-gear KR would be appreciated.  I'll try to add some of this
> increased gear knowledge to my gear site in the next few weeks.  This is
> also a reminder to me that I need to update www.krnet.org also, so we
> can pass on this useful information to aid future builders.  I'll
> probably be asking for some dimensions from tri-gear guys who are
> satisfied with their landings in that process, as well as any who feel
> their nose drops abruptly, if there are any still flying.
> 
> Also, it's worth pointing out that the gear was either designed/tested,
> or both to 3 g's.  That's presumably for a 900 lb KR2.  My first landing
> was 5.5 g's as felt by the panel-mounted meter, at what was probably 950
> pounds, so it's pretty safe to say that my first landing proved that the
> standard Diehl conventional gear legs of the mid-nineties is good for
> 5.8 g's!  I dropped it in from what seemed like 8'at least 5'. That
> was my first lesson on sudden full throttle excursions from idlethe
> engine quit dead, just when I desperately needed a few hundred RPMs.  
> At the time I felt quite lucky I didn't tear the gear off entirely (it
> was quite a jolt), although I did finally manage to tear one off in a
> terraced hay field dead-stick landing 1130 hours later!
> 
> Thanks,
> 
> Mark Langford, Harvest, AL
> ML "at" N56ML.com
> www.N56ML.com
> 
> 
> ___
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https://www.mail-archive.com/krnet@list.krnet.org/.
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Re: KR> Gear legs - G loading

2018-06-25 Thread Rllanning via KRnet

Mark
My FSDO is coming July 3 to my airworthiness certificate he wants a 3 D drawing 
what did you use for that the one broke apart in the book? I hope that is good 
for Him.

Sent from my iPad

> On Jun 14, 2018, at 3:18 AM, Mark Langford via KRnet  
> wrote:
> 
> 
> That's the first I've heard of issues with the nose dropping abruptly on
> the tri-gear versions, so it looks like a bit more investigation is in
> order.  I've seen drawings in the aircraft design books regarding
> recommended gear angles with respect to CG for both conventional and
> tri-gear installations, and will fish those out when I get I chance.
> Pazmany did some especially good work in this area, with fairly precise
> descriptions for the geometry of both gear types.   Any anecdotal
> information from KR pilots (with reasonable CGs and some hours of KR
> flying experience) who've noticed the nose dropping suddenly on their
> tri-gear KR would be appreciated.  I'll try to add some of this
> increased gear knowledge to my gear site in the next few weeks.  This is
> also a reminder to me that I need to update www.krnet.org also, so we
> can pass on this useful information to aid future builders.  I'll
> probably be asking for some dimensions from tri-gear guys who are
> satisfied with their landings in that process, as well as any who feel
> their nose drops abruptly, if there are any still flying.
> 
> Also, it's worth pointing out that the gear was either designed/tested,
> or both to 3 g's.  That's presumably for a 900 lb KR2.  My first landing
> was 5.5 g's as felt by the panel-mounted meter, at what was probably 950
> pounds, so it's pretty safe to say that my first landing proved that the
> standard Diehl conventional gear legs of the mid-nineties is good for
> 5.8 g's!  I dropped it in from what seemed like 8'at least 5'. That
> was my first lesson on sudden full throttle excursions from idlethe
> engine quit dead, just when I desperately needed a few hundred RPMs.  
> At the time I felt quite lucky I didn't tear the gear off entirely (it
> was quite a jolt), although I did finally manage to tear one off in a
> terraced hay field dead-stick landing 1130 hours later!
> 
> Thanks,
> 
> Mark Langford, Harvest, AL
> ML "at" N56ML.com
> www.N56ML.com
> 
> 
> ___
> Search the KRnet Archives at 
> https://www.mail-archive.com/krnet@list.krnet.org/.
> Please see LIST RULES and KRnet info at http://www.krnet.org/info.html.
> see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change 
> options.
> To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org

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