stunthanger.com
Building Tips and technical articles. => Building techniques => Topic started by: Leester on April 16, 2006, 08:37:18 AM
-
I built a RSM Jamison last year and now have finished it. I installed the bell crank per the plans. When I hooked up the elevator I noticed the up line was the front line not the rear as I am used to. I know why this is just didn't remember it being this way. Is there an advantage to this or was it designed this way for fit in the fusalage?
-
The has been by some to say it has a trimming advantage. The weight of the engine is closer to the pivot point of the turn. <= 6 to one half dozen to the other. I have tried it both ways and still prefer conventional bell crank mounting.
-
As Saprky said. <=
I remember when Al Rabe first wrote about this. His theory is that in certain parts of the pattern, the plane is in less than perfect conditions and the up line being in front would help maintain better control of the plane because it would have the most tension on it when it needed it.
Boy, that sounds confusing! ;D But he has his reasons that he spelled out.
I, too, have built planes both ways. I guess I am not up to the caliber of flyer that would recognise the benefits. Your milage may vary! x:
-
Thanks, I was just curious, I will have to make sure and double check my up and down since this is different than I'm used to. I hope this pic comes through my lexmark is acting up for some reason. Notice the canopy, it's my first attemt and am using Sparky's canopy installation technics.
-
Thru all these years I have had the up line in front and on some in back. I myself have never noticed the difference as before the line sliders I would put guide as indicated on the plans. Now I use line sliders and both lines are closer together. Next is why have the up line on top with down line on the bottom of the vertical installations? DOC Holliday
-
The Lexmark is back on line maybe these are clearer. By the way it's got a L&J Fox 35 and weights in at 31oz.
-
Leester!
Great looking plane! I am willing to bet it will turn out to be a great flyer. ;)
-
Thanks, I was just curious, I will have to make sure and double check my up and down since this is different than I'm used to. I hope this pic comes through my lexmark is acting up for some reason. Notice the canopy, it's my first attemt and am using Sparky's canopy installation technics.
How did you like the method?
-
Sparky: I thought it was great, it looks harder than it actually was. Once I do it a couple of more times the apperance will improve. Although it doesn't look bad even close up now it will get alot better.