Official Roban 120mm A-10 Warthog V2 EDF Jet Thread

[jinkrat4791]

I would have given my right pinkie toe to have that airplane at that age.

Lol, so would have I, its pretty obvious how exited I was, that was my father's, thats a Cox .049 Sportavia from Sears out of the Christmas catalog. Two channel, no throttle, just rudder and elevator. Thats how we got into the hobby. Every year my mom would buy my dad an airplane. Then we would go out and tear it up the first flight. There was no RC club in our town at the time. After about 5 years of tearing up jinky airplanes the club formed and we joined. My father finally got a decent airplane, a PT 40 trainer. I was around 10, thats when I started learning how to fly. Now we lost our field and our club is all but disbanded. Luckily I have a friend who flies and he lives on a farm. If not for him I don't know where I could fly

[Aros]

I would have given my right pinkie toe to have that airplane at that age.

[jinkrat4791]

Lol, I found this today when I was cleaning out my desk. The little squirt in the pic is me around 42 yrs ago

[Reeper38]

Air tank and fill valve and gauge secure

[jinkrat4791]

I suggest applying some epoxy resin on most ply structure in the fuselage, engine nacelle, wings components. Any question on your build call me at Motion RC - Ed 224-633-9090.

Thank you, I have already glassed the joint where the fuse halves meet and hysoled every joint on ever former that i could reach and im bolting and hysoling the nacelles on and filling and glossing and feathering them into the fuse for a more scale look. Im adding alot of scale detail to mine including wing tip detail and the control surface detail on flaps and rudders. Imgoing to take my time and make it as scale as I possibly can. Do yall still have airframes for sale?

[Reeper38]

Does anyone know what and where I can get stronger springs for the mains and nose struts

[Reeper38]

Thanks ed after speaking with u on the phone thats what I did I actually added 1 layer of 1 oz cloth everywhere fuse included..im not playing this time around..this one won't fold ...haha

[eawings]

I suggest applying some epoxy resin on most ply structure in the fuselage, engine nacelle, wings components. Any question on your build call me at Motion RC - Ed 224-633-9090.

[Skytrakvideo]

Jink - photo in #227

I put the ply forners in the middle, level with fuselage, there was nothing in the middle to support the new carbon tubes. Even if you have glued a tube in already you could add something similar, added a lot of strength!
I scanned them before fitting and saved as an A4 file, I can attach template file for cutting if you want to download it.

The two 10mm tubes I put in the front was easy and worth doing, with a 1/8" ply shear web between them.

[jinkrat4791]

Reeper - Electron 40evo’s and main struts 700g so total weight of my centre section 1800g without servos or flaps.
will be very similar weight to yours when done, not progressing very fast, too many other things delaying hobby stuff 🙄

Skytrak, what were those ply plates you had cut for, i saw them when you had them on the scale, im just curious what you used them for. I haven't cut mine open yet, im still afraid im going to tear up the skin because I've already hit all the glue joints I could reach a long time ago

[Skytrakvideo]

Reeper - Electron 40evo’s and main struts 700g so total weight of my centre section 1800g without servos or flaps.
will be very similar weight to yours when done, not progressing very fast, too many other things delaying hobby stuff 🙄

[jinkrat4791]

I came across something pretty cool today, im sure everyone knows what it is, im doing some work for a guy and his father actually worked for Boeing in the 60's and 70's and was a involved in the development of the F 117 and the B 2 bomber. He had all kinds of cool stuff. He even had his father's flight jacket that had all the patches on it. I would have offered to buy it if I didn't think it would have offended him. He gave me this patch after seeing my enthusiasm over the collection. How cool would it be to have been a part of the Skunk Works team. Its going on my TX case

[Reeper38]

Yeah im not going to have a extra if this one doesn't make it theres no way im doing 3...2 is enough ...haha if u do all the mods its gunna be tuff ..if something happens itll be pilot error and I can live with that...im getting my next 2 ready I'm doing the ace composite j-10 3d vt with kingtech 210

[jinkrat4791]

Also added these formers over the wing connector plate...all the had was it attached to the skin...it isn't tied to structure so the heavier the plane gets the more u need that strengthened

Yeah, I knew about the wing connector plate from a guys post in the RCgroups forum. I like your first elevator setup. I think that's the way im going. I already have two servos that will work that I had in a sailplane. I'll use those in the rudders since they really don't need a ton of torque. I'll use the new ones I bought for the elevator halves. I really wish I could afford to buy one of the reduced price airframes Motion is selling. Im thinking about buying one anyway and kinda force it into my budget. As much money and work I've got into this project I'd hate to not be able to rebuild it if I had an incident

[Reeper38]

Skytrak mine is at 2125g with the retracts and strut and wheels

[Reeper38]

Also added these formers over the wing connector plate...all the had was it attached to the skin...it isn't tied to structure so the heavier the plane gets the more u need that strengthened

[Reeper38]

I dont know what ima do for the elevator this time around...ill probably figure out how to make a new mechanism for a single ultra torque hv mg like savox ...I had used the thing wing servos from spektrum the expensive ones last time but 2 of them got ruined in the last crash so I figured I still had the 2 for rudders and I might try something diff

[Reeper38]

And no the foam isn't needed ..this thing isn't going anywhere...haha u can definitely feel the difference and im pretty sure skytrak can attest the foam will be unnecessary weight i i promise ya you don't need it..im cutting the wing tips next and gunna glass and reinforce those also...im not taking a chance...

[Reeper38]

Yeah and I wouldn't even consider comparing the auw whit the skymaster ...non of them are actually scale and the wing area is alot bigger on the skymaster as in over scale I think to get a lower wing load...the roban is already high as hell at 30-32 lbs.id say it would definitely still fly good at 32-35lbs with good fans hell i was getting 32lbs of thrust with those ****ty change suns and 36lbs with jetfan pros..its more than neede...haha

[Reeper38]

As far as the unskinning it was too easy to peel off the ribs...just be careful..and that's the only reason I went through the top was to beef up the gear mounts ...if it took a hard landing the would push through easy or I would have done it like skytrak..just measure 3/4" off the panel lines and cut them things...just dont cut thru the ribs....its real easy to get the skin off...go back to my pic and look over the gear...I used the cut offs from the 20mm carbon tube too put those short tubes thru with another former down the middle off the gear mount in-between the blind nuts...it my look a lil off center but my blind nuts moved cuz im young the air gear from robart