Other incidence meters

[BUDDYonRC at aol.com]

In a message dated 2/5/2005 10:10:00 AM Central Standard Time,  
tkeithb at comcast.net writes:

Buddy, can you provide a picture?

----- Original Message ----- 
From:  _BUDDYonRC at aol.com_ (mailto:BUDDYonRC at aol.com)  
To: _discussion at nsrca.org_ (mailto:discussion at nsrca.org)  
Sent: Saturday, February 05, 2005 6:56  AM
Subject: Re: Other incidence  meters



In a message dated 2/4/2005 11:26:22 PM Central Standard Time, 
_tkeithb at comcast.net_ (mailto:tkeithb at comcast.net)  writes:

I  give it a mixed review. In general it works, but my experience is that  the
laser doesn't always come to rest at the same location. In other  words, if
you give the laser a nudge and cause it to swing back and  forth it won't
always stop at the same spot. Sometimes it's higher,  sometimes lower, and
other times it will come back to the same  location.

Also, the balancing wheel is so sensitive that if you  take it off of the
wing and put it back on the same wing often times it  doesn't read the same.
This could be due to the inconsistent laser or  could be that the balance
wheels moves slightly, I'm not sure.  Certainly this makes it difficult to be
sure two wings are exactly the  same when going back to the same wing may not
read the same.

The  only way I'm able to use it is going back and forth multiple times  and
seeing if it's still reading the same. Also, once set, swing the  laser four
or five times and see which spot it lands on most often.  This certainly
isn't very scientific.

What I always end up doing  is just getting things as close as possible and
then flying it to dial  in the exact required incidences.

I've seen threads on RCU where  people set zero incidence on non-adjustable
stabs using this tool, I  think that's a BIG mistake. Flat table with
measuring devices is the  best approach.

It could be that I just have a defective one, but  I've heard others that had
the same experience as I have  had.

Keith


----- Original Message ----- 
From: "John  Pavlick" <jpavlick at idseng.com>
To:  <discussion at nsrca.org>
Sent: Friday, February 04, 2005 8:17  PM
Subject: Other incidence meters


> Has anybody used the  Great Planes Accupoint Laser Incidence meter on a
> pattern plane  with any success? It's graduated in 1/4 degree increments -
is
>  it capable of measuring this accurately? If not, just how good is it?  The
> laser hangs on ball bearings. The mounting ears are nylon but  seem to work
> OK...
>
> John Pavlick
>  http://www.idseng.com
>
>
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I Have been using the bar assembly from the GP laser meter and attach a  
block of balsa on each side then attach my digital level to the bar with  
electrical tie straps. This works great and is accurate to one-tenth of a  degree.  
Works great. 
Buddy 




Kieth
I will send one later this evening, Going to fly now.
Buddy
 
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