Date: Sun, 16 May 1993 11:14:56 GMT
From: kevin@hawaii.edu (Kevin Mayeshiro)
Message-Id: <C749wx.FFy@news.Hawaii.Edu>
Organization: University of Hawaii
Subject: Stacking Rev I's

Today I purchased a couple of Rev I's to add to my current inventory.  
I was planning on keeping one stock and converting the other to an UL.  
But since I already own another Rev I, I was thinking that I should 
have some fun and create a 3-pack.  

So, a question for the net...  Does anyone have a recommendation as 
to what length the train lines should be?  Should I apply the 2/3 rule 
(or was it the 3/4 rule) to make the train lines?  That would make the 
lines approx. 6 feet in length.  Does this sound right?  It sounds a 
bit long to me.  Also, the train lines should connect each kite at six 
points (at each end-cap.)  Correct?  What about the center of the 
leading edge?  That would make it 7 and a little more difficult to 
arrange.  

Thanks  

- Kevin


 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = 


Date: 16 May 1993 13:24:49 GMT
From: jeffy@syrinx.umd.edu (Jeffrey C. Burka)
Message-Id: <1t5fb1$nee@hecate.umd.edu>
Organization: University of Maryland at College Park
Subject: Re: Stacking Rev I's

In article <C749wx.FFy@news.Hawaii.Edu> kevin@Hawaii.Edu (Kevin Mayeshiro) writes:

>So, a question for the net...  Does anyone have a recommendation as 
>to what length the train lines should be?  Should I apply the 2/3 rule 
>(or was it the 3/4 rule) to make the train lines?  That would make the 
>lines approx. 6 feet in length.  Does this sound right?  It sounds a 
>bit long to me.  Also, the train lines should connect each kite at six 
>points (at each end-cap.)  Correct?  What about the center of the 
>leading edge?  That would make it 7 and a little more difficult to 
>arrange.  

Almost a year ago when we were discussing all sorts of Rev train tidbits,
Dave Butler was kind enough to pass on the fact that Dave Brittain settled
on 4.5' as the optimum train line length.  As I've never stacked anything other
than a II in front of a I, I can't really add to that.

As for the number of train lines, I guess it depends on how good you are.
Brittain insists that you really need all 7 points.  I've flown a stack
of 3' "baby revs" (custom) that uses 6 lines (leaving out the center) and
it flies quite.  My own custom baby rev stack uses 7 train lines.  I've
flown a custom progressive stack (6', 7', 8', 9') that uses only 5 train
lines, leaving out the wing tips.  It flies with the kites perfectly
locked.  I was told, though, that it was very difficult to tune that stack
because the length of the center line is critical.  Finally, I fly my own 
progressive II/I stack with 7 train lines.

As you can see, there are plenty of choices.  Part of the answer will rely
on how good you are with a Rev.  Dave Brittain may insist that 7 train lines
are necesary, but how many of us can even think of flying with his precision?

Jeff

-- 
|Jeffrey C. Burka     | "When I look in the mirror, I see a little clearer/ |
|SAFH Lite [tm]       |  I am what I am and you are you too./  Do you like  |
|jeffy@syrinx.umd.edu |  what you see?  Do you like yourself?"  --N. Cherry |