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scentualsun · 10-21-2009, 05:08 PM

Liked it so much I'm building another. A foamy flew into me in a hover. Bye bye! I love the plane but one Hitec 7955 on the pull pull rudder was fading on me. Tried adjusting the geometry and it was still doing it. This time i'm mounting the single 7955 in the tail on a direct linkage (3.5 inch 4-40 turnbuckle) with a 1-1/4 swb half arm, and ball links. This will result in a much better mechanical advantage and no wire slop. They recommend a 2-3/4 inch arm on the pull pull but there is no way to get 2-3/4 out of the supplied control horns for proper geometry. A three inch straight arm and the center mounting hole on the control horns are perfect geometry except where the installed feeder tubes for the wire squeeze it down to about 2.5 inches. If I was putting pull pull back in I would remove those tubes and elongate the hole so the cables touched nothing and were a straight shot. make sure your ball links are on the bottom of the servo arm with the pull pull. Less stress on the servo. This is a really big 50cc airplane with a huge rudder especially for only one rudder servo on the pull pull. Knife edge loops are pretty much out of the question without two servos. Too much for one 7955 I should say. Hitecs new one just might getr done.

I installed the direct linkage on the wreck first to make sure everything worked out. Getting 45 degrees of throw with no binding. There are actual servo cut outs on both sides of the rear for just this application in case you wanted to install two. Two would cause a serious balance issue that would require a bunch of lead up front. As it is, I mounted my ignition battery to one side of the engine box to offset the single rear mounted rudder servo and it balances neutral. That cg buddy is the trick!
My first one came in at 19.5 lbs with a ZDZ 50 and jmb tr-50 cannister setup. 7955's all around on stock hardware. 3) 2000 mahr nimh batteries. 1 ignition, two receiver, through cermark switches and a batshare on the reciver side. This plane isnt light and I'd like to see someone get it in around 16-17 as advertised with supplied components. I'm waiting for the carbon gear and will be swapping out tubes and gear at the same time. This ought to save about 10 ozs.
It is a well bult, well thought out kit and a great flier. I wouldn't have replaced it otherwise.
Just my two cents.

10-21-2009, 05:08 PM	#3
scentualsun Flyin' Around Join Date: Jul 2008 Posts: 1	Re: Aeroworks edge 540 50cc qb Liked it so much I'm building another. A foamy flew into me in a hover. Bye bye! I love the plane but one Hitec 7955 on the pull pull rudder was fading on me. Tried adjusting the geometry and it was still doing it. This time i'm mounting the single 7955 in the tail on a direct linkage (3.5 inch 4-40 turnbuckle) with a 1-1/4 swb half arm, and ball links. This will result in a much better mechanical advantage and no wire slop. They recommend a 2-3/4 inch arm on the pull pull but there is no way to get 2-3/4 out of the supplied control horns for proper geometry. A three inch straight arm and the center mounting hole on the control horns are perfect geometry except where the installed feeder tubes for the wire squeeze it down to about 2.5 inches. If I was putting pull pull back in I would remove those tubes and elongate the hole so the cables touched nothing and were a straight shot. make sure your ball links are on the bottom of the servo arm with the pull pull. Less stress on the servo. This is a really big 50cc airplane with a huge rudder especially for only one rudder servo on the pull pull. Knife edge loops are pretty much out of the question without two servos. Too much for one 7955 I should say. Hitecs new one just might getr done. I installed the direct linkage on the wreck first to make sure everything worked out. Getting 45 degrees of throw with no binding. There are actual servo cut outs on both sides of the rear for just this application in case you wanted to install two. Two would cause a serious balance issue that would require a bunch of lead up front. As it is, I mounted my ignition battery to one side of the engine box to offset the single rear mounted rudder servo and it balances neutral. That cg buddy is the trick! My first one came in at 19.5 lbs with a ZDZ 50 and jmb tr-50 cannister setup. 7955's all around on stock hardware. 3) 2000 mahr nimh batteries. 1 ignition, two receiver, through cermark switches and a batshare on the reciver side. This plane isnt light and I'd like to see someone get it in around 16-17 as advertised with supplied components. I'm waiting for the carbon gear and will be swapping out tubes and gear at the same time. This ought to save about 10 ozs. It is a well bult, well thought out kit and a great flier. I wouldn't have replaced it otherwise. Just my two cents.