[NSRCA-dist4] Columbus contest

[Mark Atwood]

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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