RE: Sukhoi SU-26 MX build  
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RE: Sukhoi SU-26 MX build - 1/12/2007 6:36:56 AM   
cmgtech1


 

Posts: 27
Joined: 6/20/2004
From: Dalton, GA, USA
Status: offline 		Slow but steady I suppose. Right wing panel is ready to attach the leading edge. Of course, the leading edge does not mate well with the front of the ribs. My solution for the rib gaps at the leading edge are to trim the front of the 2 ribs that appear to be just a bit too long, and to CA some "fillers" from scraps on the ribs that are a bit too short. Really worried about the panel remaining warp free. I've never enjoyed building wings where the front of the ribs were notched to accept preformed leading edge stock. The angles just never work out. I much prefer building wings constructed with ribs that have a flat nose and gluing rectangular leading edge stock to them (i.e. 1/2 x 1 x 36). It requires more carving/sanding, but I always feel more comfortable using rectangular leading edge stock.

Should have the right wing panel completed this week end and will start on the left. I've been reading over the fuselage construction during periods where I'm waiting on glue to dry. I've identified the parts, and have done a little bit of "dry fitting". The fuselage looks like it will be the easiest part of the build. Hope I'm not wrong about that!

BTW.. what engine are you planning on using in yours Tom1178? I'm pretty sure I'm going with an O.S. 1.20 Surpass w/pump. My buddy has the O.S. 1.20 in his and it seems fine. It doesn't have "unlimited" vertical performance, but it's never appeared to be suffering from lack of power. The last time I flew his plane, I had been reading the comments from others in this thread and was giving consideration to a small gasser. I paid attention to the vertical performance of his plane and felt VERY comfortable with it's capability.

Are you going to be using a single elevator servo, or will you be going with dual servos? I think I'm going to go the single servo route, mainly because I don't lke seeing servos mount externally. If I decide I don't like the single servo appraoch, I can always go back change to a 2 servo system.

Have a safe trip home, and I very much look forward to reading of your progress.

(in reply to tom1178)
       Post #: 551

RE: Sukhoi SU-26 MX build - 1/14/2007 5:09:36 AM   
cmgtech1


 

Posts: 27
Joined: 6/20/2004
From: Dalton, GA, USA
Status: offline 		Right wing panel has been "set aside" and I will begin framing the left panel tomorrow. I appreciate your post regarding your problems with the spar alignment. I simply cut the rib notches to accomodate the spar where needed. 1/16th of an inch was about the most that I had to account for. I worked for approx 4 hours on the leading edges of the ribs to make sure that they were going to mate well with the preformed leading edge stock. I'm tickled with the results and I'm full of confidence heading into the left panel. The joining of the 2 panels seems a bit of a nightmare, but maybe it won't be. First things first right?

Looking forward to your next update.

BTW... ran to a LHS today to get more CA and other supplies. We have a very small municiple airport close to the hobby shop, and on my way home, a Tiger Moth was clawing it's way into the skies and crosed over the road. I had to pull into the airstrip and was able to watch as the pilot shot about 10-12 touch and goes. After doing the T&G's the pilot landed, taxied to the fueling station, topped it off and departed from the strip. I watched it fly nearly out of sight and was cranking up the truck to leave when a nice little Citabria taxied up to the fueling station. I decided I would wait to watch the Citabria take off and was rewarded by getting to watch him do some aerobatics high and parallel to the airstrip. Man... what I great day I've had today!

(in reply to cmgtech1)
       Post #: 552

RE: Sukhoi SU-26 MX build - 1/15/2007 10:22:47 PM   
tom1178


 

Posts: 71
Joined: 7/25/2006
From: Upstate, NY, USA
Status: offline 		Sounds like you are coming along with your wing. The joining of the two looked a lot more difficult than it actually was. I used 30 min epoxy and 4 clamps to hold it tight. Lined everything up a few times and double/triple checked to make sure everything was in order before I glued. I'm happy to say it turned out as nice as one would expect. The Wing Center Rib was too long to fit properly, I shaved off about 1/2 inch from the rear of it. Wasn't really a big deal. At this moment I am carving my wingtips to shape. I must say, this is probably the worst thing about this kit so far. I just dont like having to sand a block of wood into a rounded wingtip. Not very much fun to start but when it starts to actually take shape and form i guess you could say it is rewarding.

I'm going to be using a YS 120 NC. I've had it on a previous model that was completed over 10 years ago and never flown. The engine has never even been started. Everybody tells me it should run great and power the plane nicely.

(in reply to cmgtech1)
       Post #: 553

RE: Sukhoi SU-26 MX build - 1/15/2007 10:46:01 PM   
Jim Clausen


 

Posts: 21
Joined: 6/16/2006
From: Savannah, GA, USA
Status: offline 		cmgtech1,
Just for the record, I have a Sukhoi SU 26 and it is powered by a MOKI 1.6. It has unlimited vertical and is a great flying airplane. Make sure you have enough power. The plane can take it easily.
Jim Clausen
AMA 55111
Savannah, Georgia.

(in reply to tom1178)
       Post #: 554

RE: Sukhoi SU-26 MX build - 1/19/2007 3:55:16 AM   
blw



Posts: 4569
Joined: 3/15/2004
From: Auburn, AL, USA
Status: offline 		My kit arrived today. I looked everything over and it looks to be a straightforward buld. The only thing that I don't like is the thick landing gear. Any suggestions for a replacement? Looks like I won't be building it for another month. I have a day of work left on one kit, and then I start another fast build right after that. Then, the Sukhoi.

_____________________________

The ultimate responsibility of pilots is to fulfill the dreams of the countless millions who can only stare skyward...and wish.

(in reply to Jim Clausen)
       Post #: 555

RE: Sukhoi SU-26 MX build - 1/21/2007 6:19:54 PM   
cmgtech1


 

Posts: 27
Joined: 6/20/2004
From: Dalton, GA, USA
Status: offline 		Left wing panel is ready for leading edge and top sheeting, then the wing joining event (which I'm always paranoid about).

Tom, I assume you're on the fuselage by now?

Jim, I'm sure that with the 1.60 your Sukhoi is amazing in the veritical. If I had any intention of doing anything in the area of 3D with this plane I wouldn't consider the 1.20. I'm really looking more for precision aerobatics. My friends Sukhoi has a very comfortable amount of power and he's running an O.S. 1.20 in his. While it doesn't have "unlimited" vertical, it has more than enough to draw some very nice uplines including uplines with rolls.

BLW - While the kit isn't really "hard" to build, it has a very awkward/cumbersome feel to it for me. I'd bet that finding a set of carbon fiber gear that would work for this bird wouldn't be too hard. I think I'm gonna stick with the stock gear, maybe have them powder coated.

I'll be sure to keep everyone updated as I progress through the major portions of my build.

(in reply to blw)
       Post #: 556

RE: Sukhoi SU-26 MX build - 1/23/2007 6:45:19 AM   
pilotpapakilo


 

Posts: 6
Joined: 4/17/2005
From: Norman, OK, USA
Status: offline 		I noticed that some people were talking about puting the Honda Dream Team scheme on their Sukhoi. I had the same idea and I started to recover my sukhoi about a week ago in the new scheme. (winter project you know ) I thought I would post some pictures of what I have so far. I also want to add that every bit of it was cut out with an xacto!

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(in reply to cmgtech1)
       Post #: 557

RE: Sukhoi SU-26 MX build - 1/23/2007 6:46:20 AM   
pilotpapakilo


 

Posts: 6
Joined: 4/17/2005
From: Norman, OK, USA
Status: offline 		and im about to start on the wing

(in reply to pilotpapakilo)
       Post #: 558

RE: Sukhoi SU-26 MX build - 1/24/2007 12:44:36 PM   
cmgtech1


 

Posts: 27
Joined: 6/20/2004
From: Dalton, GA, USA
Status: offline 		Looks great Pilotpapakilo!

Can you give some specs on your Sukhoi? Weight? Engine?

The Dream Team scheme should be very impressive! Looks like 90% of the modelers doing the Sukhoi have chosen to go with a fairly stock / scale 2 tone PAC color scheme. I'm wanting someting a bit more creative for mine, but have not been able to come up with anything that I'm happy with yet. Oh well.. gotta get the thing built first right?

(in reply to pilotpapakilo)
       Post #: 559

RE: Sukhoi SU-26 MX build - 1/25/2007 3:32:19 AM   
blw



Posts: 4569
Joined: 3/15/2004
From: Auburn, AL, USA
Status: offline 		Yep, the color scheme is alluding me too. I've thought of white and black, like large checkerboards but have also thought of a more patriotic scheme since it is a Russian plane. Can't decide yet.

I don't know if I want to spend the $$$ on a carbon fiber gear yet. The stock gear sure is heavy. Maybe fiberglass if I can find one.....or a lighter dural if I could find that too.

_____________________________

The ultimate responsibility of pilots is to fulfill the dreams of the countless millions who can only stare skyward...and wish.

(in reply to cmgtech1)
       Post #: 560

RE: Sukhoi SU-26 MX build - 1/26/2007 10:56:27 PM   
pilotpapakilo


 

Posts: 6
Joined: 4/17/2005
From: Norman, OK, USA
Status: offline 		Im not sure what the weight of my plane is going to be when im done. I did have a .91 ASP 2 stroke on it but I decided that im going to put on a smoke system. I think I might just convert it to gas and see how that goes.

I know what you mean about the two tone. The guy I bought it from had it done in the tan and blue and I was like huh uh. After a season of flying it I decided I had to make it my own and put something spectacular on her.

Just finished the wing last night and am about to strip her down and start the covering process!

(in reply to blw)
       Post #: 561

RE: Sukhoi SU-26 MX build - 1/31/2007 11:29:34 PM   
tom1178


 

Posts: 71
Joined: 7/25/2006
From: Upstate, NY, USA
Status: offline 		I haven't been working on my Sukhoi as much lately. I am just now finishing the wing, cutting the notches for the hinges. Have beveled one of the aelerons so far. The wing turned out about as well as I would have liked not building any kits in 10 years. I found it strange when I was finishing the ailerons the instructions told me to use the goldberg wing centerline tool to mark the center of the wing and adjoining aileron. Is it just me or is the thickness of the wing/aileron too big to fit their tool around? At first I was thinking that maybe I needed to sand them down a lot more but looking at the wing/aileron they appear to be flush with the camber of the wing as I have it now. Anybody else run into this? Here's some pics from the past few weeks I never put up.

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(in reply to pilotpapakilo)
       Post #: 562

RE: Sukhoi SU-26 MX build - 2/1/2007 1:48:56 AM