Hanger 9 Suhkoi fuel tank base

[FreeRider2RCnut]

I am new here and to RC (less than two years), but as anything I get into I go forward head first and learn quick. That said please forgive me if my terms are not correct. Hopefully I can get the message I am trying to send out clearly.

I own several planes, 6 larger than 70". My most recent completed plane is the Hanger 9 Sukhoi. It was built by Rob Linch at RC Hobbys my LHS (local hobby shop) where I bought it. The build is great and I have no gripes with the workman ship of the builder. However I did find a few issues with the construction of the kit, mostly the base that the fuel tank is mounted to. It sits very high in the fuse and the throttle servo sits against the fuel tank. I am worried the vibrations from my DA 85 will wear through the fuel tank.

The base has already broken lose from the support which caused the motor to accerate when flying inverted. This started happening after about 10 flights. I am wondering if anyone else has expirenced this issue or have noticed the location of the servo in relation to the fuel tank.

The other question may be a bit nick picky: the fuel dot location is much lower than the fuel tank which causes the fuel to leak (drain) when refueling after removing the fuel line before connecting the dot. This could be an issue if you are a smoker (I'm not), I just hate having my hands smell like gas when I want to fly this plane. Of course I plan to relocte the fuel dot and I have fixed the base. I need to look into relocating the throttle servo but that may take some more consideration to locate it properly.

Thanks for taking the time to read my dribble.

Drew

[yarom]

If you look at the build threads for this plane, on other forums, you will see this issue is discussed. The tank tray is weak and requires some tri-stock front and back to keep rigid.

Take a look at the threads. This plane is problematic with a DA-85 and there are quite a few steps that one needs to complete in order to make it better.

After losing like 4 of them over a short period of time, there is none left in our entire club and nobody would get another one...

[FreeRider2RCnut]

Thanks for the info. I guess I should have read before buying, but I will fly it untill it turns to tooth picks and enjoy it the best I can. I will take your advice and look into the builder threads. I didn't previously because, well I didn't know there were threads for it and I didn't build it. Bought it based on looks and the RTF price RCHobbys gave me.

I pay to have my planes built most of the time. I am more into flying them than working on them, but I do find myself working on them to keep them up.

Our latest project is a 40% Aeroworks Ultimate, which I bought from a post here in the SwapShop. Hopefully it has no (or at least not as many) issues. We plan to do the trim flight tomorrow or Wed. DA 150 and all the other good stuff you'd expect a plane of its caliber to have.

So far I am not sure about the large gassers. I have a Cermark Edge 540 which to date is my favorite plane to fly. Cermark markets it as a 28%. It's wing span is 76", 71" long and a wing area of 1147 sq in. The power is an E-Flite Power 160, Scorpion Controller with 10s lipos 5000mah (two 5s in series at 20C). It weighs just under 14 pounds RTF. It flys 10+ minutes with time to spare for a failed landing. I plan to buy a second Edge ARF from Cermark to have on hand incase I drop this one while learning. Did I mention I love it!

Anyway, thanks again for the direction. I will post some pics and vids of my toys and my learning some time soon.

[FreeRider2RCnut]

Yarom, I could not find the threads you reffer too, any chance youi could post the link for me?

Thanks

[yarom]

http://www.rcuniverse.com/forum/m_78...tm.htm#9134361

	Quote: Originally Posted by FreeRider2RCnut
	Yarom, I could not find the threads you reffer too, any chance youi could post the link for me? Thanks

[ken6881]

I have had one and didnt have any of the issues you talk about here and i had a throttle and a choke servo mounted on the tank tray. However i did swap the hangar 9 tank for a dubro because of the stopper is not compatable with anyone elses this might have made a differnce. And its a very good flying plane i would not regret buying it.

[Bad Dog!]

	Quote: Originally Posted by FreeRider2RCnut
	Yarom, I could not find the threads you reffer too, any chance youi could post the link for me? Thanks

Look under "what's hot" on this site and you will find a long and helpful build thread on the H9 Sukhoi.
Make certain that your DA85 has all the updates including the new piston. I had a early 85 on this airframe and it shook it so much that I named the plane the "Locktite express". After the updates it was much better.

[FreeRider2RCnut]

The DA 85 came from direct from the source just three weeks ago and Jeff at DA assured me it is all current.

Thanks for the advice. I will check the info and go through the airframe also. Still acclerates while inverted but no where near as aggressively since the fuel tray has been secured.

I don't regret buying it, but might not have if I read the threads on RCU before doing so. So far the best gasser I've flown and clearly has improved my skill. I feel it was a great deal for under $3K RTF. It may may be one of the early kits and the shop most likely had it on the shelf for a long time. I saw it several months ago and recently asked for a price built.

Pipes for the Ultimate came today so tomorrow or Friday for that ones maiden, can't wait!