Has anyone out there done a little surgery to a Hangar 9 Edge 540 ARF and mounted the Elevator Servos in the tail. If so I would appreciate some feedback as to how this plane balanced afterwards and what the general affect was to the plane. I am planning a Saito 180 for this plane. Also how far forward did you mount the servos.

Also what way would you guys recommend mounting the engine, sideways or inverted?

Thanks in advance

Hi Hooked-On-RC,

I've got a Hangar 9 Edge 540 with dual elevator servos and none of them are mounted in the tail. The 2 for the elevator and the one for the rudder are all mounted in their stock locations. I'm running a Saito 1.80 in mine with a Tru-Turn spinner and a larger 24 oz. tank up front. The only thing I had to do to get it to balance dead even was mount the battery pack on a lite-ply plate at the rear most area of the wing saddle. I finally got to test fly it this past Sunday and was really pleased with it. It's a real floater on landing, I ran out of runway twice before I finally got it to settle down. We've got a 1,000 ft. long runway at that. All in all they are great flying planes, if it was to crash tomorrow I would definintely have another one. As far as engine mounting mine is mounted sideways. You have to cut a couple of slots for the rocker covers and to reach your glow plug unless you use a on-board glow or remote igniter. I've heard the big 1.80's don't run well inverted and I've not had any luck with them that way either. You may want to get some other opinions first though. Hope this helps.

I have my elv servos just under the stab.
I used hitec mini high torque 255's

I too have a Saito 1.80 and put hitec 605's in wings and a 5645 hitec on a pull pull rudder.
I have my bat. mounted where manuell tells and plane bal. true with no extra weight added, total at 11.5lbs

This is by far one of my best planes, just a pleasure to fly, with more than enough power to do with as you like.

How many flights do you have with the 225s in the tail? I was going with the exact same setup but had heard the 225s, although hi-torque, don't have the gear strength for a 1/4 scale application due to the gear size.

Also, do you have any pics of the 225 installation (during or after install)?

Thanks,
Harold

I'm building a H9 edge right now and just finished the elevator servos. I installed 2 Hitec 545's in the tail. The servos mount about 3/8 of an inch up from the red trim line and the front of the servo is about 1/4" from the leading edge of the stab. There is no wood in this area to mount the servo to. The front of the servo almost touchs the wood in the round cut out area. That's about where you want it to sit. Take a piece of paper and some pencil lead to make a pattern. Hold the paper on the fuse and rub the lead on it to pick up the shape of that open area. Then use that to make a pattern to cut out ply wood. With the 545's in the rear and a OS 1.60 fx in the front the plane balances out perfect with the battery in the spot they show in the plans. The 225 is a good servo but not designed for that kind of use. The gears are to small for the load. That is per a Hitec person that I fly with. They may work for awhile but he gets calls all the time about people using servos not designed for the task and having them fail. Anyways if you where to use the 225 you would move the servo up higher and inline with the leading edge of the wing. Then you would ot have to add any wood. The Saito and Os 160 are with an once of each other just to let you know. The Os is mo power! The OS 1.60 a Perry VP-30 pump Slimline pitts muffler and a mejlik 18x8 prop from Desert Aircraft is the hot set up for this plane. Plus the OS dont drink fuel like the Saito.

Punkey71:

I have about 75 or more flights on my 225's hitech mini's, and they have never let me down.

I've done plenty of 3-d throw wall's and they hold great!

The only problem I've had with my plane was with the CA hinges in the wing broke about 4 so I replaced with robart's.

and also beef your landing gear block!