X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 19 Mar 2014 08:06:28 -0400 Message-ID: X-Original-Return-Path: Received: from mail-qa0-f44.google.com ([209.85.216.44] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6785875 for lml@lancaironline.net; Tue, 18 Mar 2014 16:11:42 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.216.44; envelope-from=macinsd@gmail.com Received: by mail-qa0-f44.google.com with SMTP id f11so7465872qae.17 for ; Tue, 18 Mar 2014 13:11:06 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.140.81.198 with SMTP id f64mr35882958qgd.38.1395173466622; Tue, 18 Mar 2014 13:11:06 -0700 (PDT) Received: by 10.96.105.2 with HTTP; Tue, 18 Mar 2014 13:11:06 -0700 (PDT) In-Reply-To: References: X-Original-Date: Tue, 18 Mar 2014 13:11:06 -0700 X-Original-Message-ID: Subject: Re: [LML] Re: NG Gas strut From: Bill MacLeod X-Original-To: Lancair Mailing List Content-Type: multipart/alternative; boundary=001a11c12d08e0d13804f4e722f4 --001a11c12d08e0d13804f4e722f4 Content-Type: text/plain; charset=ISO-8859-1 Thanks George. Will do. Bill On Tue, Mar 18, 2014 at 12:59 PM, George Rosel wrote: > Bill, > > I fly a 4-P Turbine and the description from Michelle at Kit Components > is... > > 160-0002, gas spring 100#, 10.71" ext'd / 3.94" stroke, M6 male > > Note that there are two different "end" styles and confirm with her which > one that you have before ordering. She is very helpful!! > > > ... George > > > > George F. Rosel > > (cell) 303-995-5501 > > Cool vacation destination... > "The Lodge at Timberline", Copper Mtn., Colorado ... a true > "ski-in/ski-out" Luxury Home for RENT, see video... > http://youtu.be/ZYMcJn2TfqY > ... Click here to view my webpage: http://www.vrbo.com/254739 or... > http://www.LodgeAtTimberline.com > > > > On Tuesday, March 18, 2014 1:14 PM, Chris Zavatson < > chris_zavatson@yahoo.com> wrote: > Dom, > My 360 requires a strut force somewhere south of 65 lbs to lock the gear > in flight. The strut when new at ~100 lbs has a huge margin. I base my > replacement interval on actual strut performance in-flight. I look for the > maximum airspeed at which the gear will lock. I start at 120 KIAS and > free-fall the gear. New gas struts will lock the nose gear even at this > much elevated speed. If it does not lock, I start slowing until I get a > green light. During this test the gear has already lost its momentum from > the free fall and it is just the gasstrut pushing the gear forward into > the airstream. Once the maximum locking speed (without the aide of a free > fall) drops below 100 KIAS I replace the strut. They have been > lasting about seven years. Note that undue friction in the bearings or > linkages can reduce your margins during the free fall. So even if the > strut is replaced more frequently, an inflight test is the only way to know > the actual functional performance of the system. > In-flight testing of the emergency extension is a critical maintenance > item. Throughout the years the Lancair fleet has suffered a number of nose > gear collapses (following emergency extensions) as a result of weak gas > struts that were not being properly checked. > Note that undue friction in the bearings or linkages can reduce your > margins during the free fall. In an actual emergency extension one > should slow down at 80 to reduce the air loads. > For more nose gear maintenance items: > http://www.lancairowners.com/nosegearmaintenance/ > > Chris Zavatson > N91CZ > 360std > > > > On Tuesday, March 18, 2014 8:57 AM, George Rosel > wrote: > Hello Gang, > > I suggest you change out the nose gas strut every year at your annual > condition inspection. It's not worth the worry and they only cost 19.75ea. > from Lancair Kit Components. I just ordered a couple of them. > > Fly Safe!! > > ... George > > > George F. Rosel > > (cell) 303-995-5501 > > Cool vacation destination... > "The Lodge at Timberline", Copper Mtn., Colorado ... a true > "ski-in/ski-out" Luxury Home for RENT, see video... > http://youtu.be/ZYMcJn2TfqY > ... Click here to view my webpage: http://www.vrbo.com/254739 or... > http://www.lodgeattimberline.com/ > > > > On Tuesday, March 18, 2014 9:19 AM, Matt > wrote: > I test it in flight on my 360. A couple times a year. When the airspeed > gets too slow I replace it. > > Matt > > Sent from my iPhone > > > On Mar 18, 2014, at 6:53 AM, John Barrett <2thman1@gmail.com> wrote: > > > > You can remove the strut and test it. I do that at annual and replace it > if it's losing its charge > > > > John > > > > Sent from my iPad > > > > > >> On Mar 18, 2014, at 4:48 AM, "Dominic V. Crain" > wrote: > >> > >> Does anyone change the nose gear gas strut as a matter of routine > maintenance, e.g., at an annual, or biennially etc? > >> Cheers > >> > >> Dom Crain > >> VH-CZJ > >> > >> Dominic V. Crain > >> domcrain@tpg.com.au > >> Phone 03-94161881 > >> Mobile 0412-359320 > >> > >> > >> -- > >> For archives and unsub > http://mail.lancaironline.net:81/lists/lml/List.html > > > > -- > > For archives and unsub > http://mail.lancaironline.net:81/lists/lml/List.html > > -- > For archives and unsub > http://mail.lancaironline.net:81/lists/lml/List.html > > > > > > --001a11c12d08e0d13804f4e722f4 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Thanks George.

Will do.

<= /div>
Bill


On Tue, Mar 18, 2014 at 12:59 PM, George Rosel <rosel_ge= orge@yahoo.com> wrote:
Bi= ll,

I fly a 4-P Turbine and the description from Michelle at Kit Components= is...

160-0002, gas spring 100#, 10.71" ext'd / 3.94"= stroke, M6 male

Note that there are two different "end" s= tyles and confirm with her which one that you have before ordering. She is = very helpful!!


... George


=A0
George F. Rosel

(cell) 303-995-5501

Cool vacation destination...
"The Lodge at Timberl= ine", Copper Mtn., Colorado ... a true "ski-in/ski-out&quo= t; Luxury Home for RENT, see video.= .. http://youtu.be/ZYMcJn2TfqY
=A0... Click here to view my webpage: http://www.vrbo.com/254739=A0=A0 or...=A0 http://www.= LodgeAtTimberline.com



On Tuesday,= March 18, 2014 1:14 PM, Chris Zavatson <chris_zavatson@yahoo.com> wrote:
=
Dom,
My 360 requires a strut force somewhere south of 65 lbs= to lock the gear in flight.=A0 The strut when new at ~100 lbs has a huge m= argin.=A0 I base my replacement interval on actual strut performance in-fli= ght.=A0 I=A0look for=A0the maximum airspeed at which the gear will lock.=A0= I start at 120 KIAS and free-fall the gear.=A0 New gas struts will lock th= e nose gear even at this much elevated speed.=A0 If it does not lock, I start slowing=A0until I get a gr= een light.=A0 During this test the gear has already lost its momentum from = the free fall and it is just the=A0 gasstrut pushing the gear forward into = the airstream.=A0 Once the maximum locking speed (without the aide of a fre= e fall) drops below 100 KIAS I replace the strut.=A0=A0They have been lasting=A0about seven years.=A0=A0 Note that undue friction in the b= earings or linkages can reduce your margins=A0during the free fall.=A0 So e= ven if the strut is replaced more frequently, an inflight test is the only = way to know the actual functional performance of the system.<= /div>
In-flight testing of the emergency extension is a critical= maintenance item.=A0 Throughout the years the Lancair fleet has suffered= =A0a number of=A0nose gear collapses=A0 (following emergency extensions)=A0= as a result of weak gas struts that were not being properly checked.=
Note that undue friction in the bearings or linkages can reduce = your margins=A0during the free fall.=A0 In an=A0actual emergenc= y extension one should=A0slow down at 80 to reduce the air loads.
For more nose gear maintenance items:

Chris Zavatson
N91CZ
360std=A0=A0=A0

<= /span>


On Tuesday, March 18, 2014 8:57 AM, George Rosel= <rosel_geor= ge@yahoo.com> wrote:
Hello Gang,

I suggest you change out th= e nose gas strut every year at your annual condition inspection. It's n= ot worth the worry and they only cost 19.75ea. from Lancair Kit Components.= I just ordered a couple of them.

Fly Safe!!

... George

=A0
George F. Rosel

(cell) 303-995-5501

Cool vacation destination...
"The Lodge at Timberline", Copper Mtn., Colo= rado ... a true "ski-in/ski-out" Luxury Home for RENT, see video... http://yo= utu.be/ZYMcJn2TfqY
=A0... Click here to view my webpage: = http://www.vrbo.com/254739=A0=A0 or...=A0 http://www.lodgea= ttimberline.com/



On Tuesday, March 18, 2014 9:19 AM, Matt <mattinlosangel= es@yahoo.com> wrote:
I test it in fligh= t on my 360. A couple times a year. When the airspeed gets too slow I repla= ce it.

Matt

Sent from my iPhone

> On Mar 18, 2014,= at 6:53 AM, John Barrett <2thman1@gmail.com> wrote:
>
> You can remove the strut and test it. I do that at annual and= replace it if it's losing its charge
>
> John
> > Sent from my iPad
>
>
>> On Mar 18, 2014, at 4:48 AM, "Dominic V. Crain" <domcr= ain@tpg.com.au> wrote:
>>
>> Does anyone change the nose gear gas strut= as a matter of routine maintenance, e.g., at an annual, or biennially etc?=
>> Cheers
>>
>> Dom Crain
>> VH-CZJ >>
>> Dominic V. Crain
>> domcrain@tpg.com.au>> Phone 03-94161881
>> Mobile 0412-359320
>> >>
>> --
>> For archives and unsub htt= p://mail.lancaironline.net:81/lists/lml/List.html
>
> -- > For archives and unsub http://mail.lancaironl= ine.net:81/lists/lml/List.html

--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html



<= /div>



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