[NSRCA-dist4] Columbus contest

Scott Pavlock f3aflyer7 at gmail.com
Tue May 27 19:00:00 AKDT 2008


Mark,

Sorry to hear about the Brio. The same thing happened on the first flight of
my Focus 2. The screw backed out from the metal output shaft and luckily we
noticed the hanging linkage before too long. I've since always put a little
blue loctite on all my servo screws and haven't had a problem.

Scott

On Tue, May 27, 2008 at 7:10 PM, Ron Hansen <rcpilot at wowway.com> wrote:

> I found your loose screw....its between you ears:)
>
> Get to work...hope to see you at the shoot out.
>
> Ron
>
> -----Original Message-----
> From: nsrca-dist4-bounces at lists.nsrca.org
> [mailto:nsrca-dist4-bounces at lists.nsrca.org] On Behalf Of Mark Atwood
> Sent: Tuesday, May 27, 2008 12:30 PM
> To: verne at mi.rr.com; IN, KY, MI, OH, WV
> Subject: Re: [NSRCA-dist4] Columbus contest
>
> I have to check..for all I know, these do too.  The lesson here...for those
> of interest, is to NOT do this stuff at 3am and in a hurry.  It's just not
> worth it.  And if you do...well, check all your work again in the morning
> after some sleep!
>
>
>
>
> On 5/27/08 11:47 AM, "verne at mi.rr.com" <verne at mi.rr.com> wrote:
>
> > I've heard of guys putting loctite on metal-geared servo horn screws, but
> > haven't ever done it myself. The Futaba and JR servos come with a lock
> washer.
> >
> > vk
> >
> >
> > ---- "Atwood wrote:
> >> Lol...NO!!  Veteran's aren't supposed to make mistakes!!!
> >>
> >> As it turns out...I think I did put the screw in.  It's not on my
> workbench
> >> where it would be if I'd forgotten it.  I looked everywhere..hoping to
> find
> >> proof of my stupidity.
> >>
> >> These were new digital servos, all metal gears and output shafts...so
> it's a
> >> metal machine screw into metal, as opposed to the old wide thread screw
> into
> >> nylon.  I didn't use any type of locktite or any thing.  I'm guessing it
> >> just backed out from vibration.  I've never had anything like that
> happen
> >> before.  That would help explain why it lasted 2 full flights though.
> Can't
> >> imagine the arm would stay on that long otherwise.
> >>
> >> Lesson learned.  The hard way :(
> >>
> >>
> >> On 5/27/08 10:06 AM, "verne at mi.rr.com" <verne at mi.rr.com> wrote:
> >>
> >>> Ouch, sorry to hear that. BTW, is there any such thing as a "veteran
> >>> mistake".
> >>>
> >>> vk
> >>>
> >>> ---- Mark Atwood <atwoodm at paragon-inc.com> wrote:
> >>>> Hey all,
> >>>>
> >>>> A rookie mistake has cost me my Brio :( :(   My Black Magic¹s aren¹t
> >>>> complete yet so I currently am without an airplane.   Shouldn¹t be too
> long
> >>>> to get a BM in the air (a few weeks) especially without the
> distraction
> of
> >>>> flying...lol.
> >>>>
> >>>> As such, I won¹t be attending next weekend :(:(   I¹ll be busy
> painting
> and
> >>>> covering.
> >>>>
> >>>> There¹s an outside chance I may still go to the shootout and share an
> >>>> airplane with Bill Pritchett...we¹ll see.
> >>>>
> >>>> -Mark
> >>>> PS...the Rookie mistake was changing Aileron servos at 3am and
> forgetting a
> >>>> servo screw.  Servo arm came off on the 3rd flight (surprised it
> lasted
> >>>> that
> >>>> long) and the resulting flutter was too much drag on the wing even at
> low
> >>>> throttle....just a slow spiral in.  Fiberglass and deceleration trauma
> are
> >>>> not pretty.
> >>>
> >>
> >> _______________________________________________
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> > NSRCA-dist4 at lists.nsrca.org
> > http://lists.nsrca.org/mailman/listinfo/nsrca-dist4
> >
> >
>
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