RE: GP Ultimate Bipe Setup
 

I finished the covering and striping tonight. I installed the radio gear and finished the fiberglass wheel pants. The cowl is pretty tricky, the paint did not want to stick to the plastic very well. I'm going to try to fix it, but will probably end up getting a glass one. If I can figure out how to post smaller pictures, I will put it all together tomorrow and post some picts. I balanced the plane out and set the incidence on the wings, stab, and engine shaft. I was amazed how straight this plane built. I don't think I can wait till spring to solo this plane so, the first decent day we get in a couple of weeks I am giong to take it up on its maiden.
Wish me luck and keep them pict coming.:D

RE: GP Ultimate Bipe Setup
 

I hope these picts turn out smaller. I just finished this thing and it turned out pretty good. i will let everyone know how it flies its maiden.
[img][/img][img][/img]

RE: GP Ultimate Bipe Setup
 

Great looking plane :) Good luck on your maiden flight.

RE: GP Ultimate Bipe Setup
 

Can we see a picture of the bottom? I would like to see the difference.

RE: GP Ultimate Bipe Setup
 

Yes, I will post some picts of th ebottom tomorrow night. Pretty plain though, White with blue stripes on the wing tips. Maybe I will put my AMA # great big through the wing.
I don't know, but it need something else.

RE: GP Ultimate Bipe Setup
 

I have a stupid question [&:] for anyone who has built this plane before. Where did you guys run your receiver antennas through? That is the last thing I have to do. Looks like the top of the turtle deck just behind the cockpit would be a good place, but I don't know.

Thanks for the help. :)
Tim

RE: GP Ultimate Bipe Setup
 

No questions are stupid. I am still working on my plane. On other planes I have built I ran the antenna out the top like you said. Looks better out the bottom. But I fly in a grass field and that can be rough on the wire.

RE: GP Ultimate Bipe Setup
 

Here is the picture of the bottom. I still think i need to add somethong down the fuse, but I don't know what yet. I did a final lateral balance after all of the radio gear was mounted and it came out good. I will probable test run the engine tomorrow night and try to fly it this weekend, weather permitting.
Let me know what you think of the bottom.
Tim
[img][/img]

RE: GP Ultimate Bipe Setup
 

Why add any more? It looks great just the way it is; not too busy-not too dull!

RE: GP Ultimate Bipe Setup
 

After looking at it for a couple of days, I would have to agree with you. My only concern was too much white and trying to find it in a white sky would be difficult but I think the checker board patterns on the wing tips and horiz. stab tips will be enough to orient the thing.
Thanks for the feedback. :D

How is everyone else doing on your builds? I would love to hear from some other people about thier experiences.

Thanks, Tim

RE: GP Ultimate Bipe Setup
 

I agree you might have a problem with the white. I have been flying a P-51 Mustang its all gray with white stripes on the wing. Almost lost it in the gray sky. I added a red strip down the fuse. You could use yellow to match your pattern.

RE: GP Ultimate Bipe Setup
 

Maybe a yellow dart on the fuse wouldn't be a bad idea. I just hate to lose this thing to something as stupid as bad orientation.:(

RE: GP Ultimate Bipe Setup
 

loganjoel

Looks great! I'm anxiously awaiting your maiden report. I'll start posting some progress as soon as I get time to start building.

Got the Saito 82 yesterday. No excuses now.

-tychoc

RE: GP Ultimate Bipe Setup
 

Logan, gotta say that covering job really does look awesome. Did you say that was the first one you've done? Here's a shot of my Ultimate, powered by a Webra .50. All in all I love it, but I do get some flutter from the rudder if I don't back down on the throttle enough coming on the downside of a loop. I've bought a pull-pull cable setup but have yet to take the time to move the rudder servo and run the cables. One of these days though.

http://img214.imageshack.us/img214/7...arge8bl.th.jpg

RE: GP Ultimate Bipe Setup
 

Looking forward to those progress photos tychoc. I have a couple od saito's and those are awesome engines. I have a .91 in my hog bipe and the power is unbelieveable.
Awesome bipe cobre99. Yes, this is my first build. I have some arf's but those are a joke to assemble. I am also considering a pull, pull setup. When you get yours done, would you post some picts of how you did it and how it performed. As for the flutter problem, I am looking at the aileron connector rods and boy do they seem flimsey. Did you use the stock rods or did you use something else? I hear of guys using carbon rods and ball links to cure this potentially bad area. Just wondering if you have had any problems in this area?.

Thanks for the feedback. :D

RE: GP Ultimate Bipe Setup
 

Quite frankly, if this person is experienced enough to fly a biplane, orientation ought not be an issue. If a person is worried about orientation, use a spotter/co-pilot for the first few flights. With my first bipe, this was an issue, but as with any airplane, once you get to know it- orientation is no more an issue than with any other aircraft.

If your concerned about it, change it, but I wouldn't reccomend it. I personally like the view you have created from below!

RE: GP Ultimate Bipe Setup
 

I agree, I like how it looks now and think that would be more than enough to identify it in the air.

Logan, I used the stock torque rods but with 2 aileron servos in the center of the wing. Looking back on it, I would have preferred to mount them out on the wings with a straight pushrod back to the aileron horn, but I haven't had any trouble out of those torque rods yet.

I've got another big project on the bench with a smaller one lined up behind it, but whenever I do get around to setting up that pull-pull rig I'll snap some shots of it.

RE: GP Ultimate Bipe Setup
 

Thanks cobra. I think I will leave my sceme alone. You guys are right, If I can't see that sceme. I don't need to be flying. I guess what I meant earlier isn't so much the orientation, but just plain loosing it in a white sky. I think the check pattern on the tips is more than adequate to help visualize my plane.
Thanks for the help.

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Is it spring time yet?[&o]

RE: GP Ultimate Bipe Setup
 

Nope!

RE: GP Ultimate Bipe Setup
 

Is anyone else progressing on their builds. Still waiting for a decent day to do my maiden flight.

RE: GP Ultimate Bipe Setup
 

I've gotten my started. I'll try to post some pictures after I'm done with the marathon on Sunday. Right now the preparations takes all of my time and energy.

Can't wait to get going on it though.

-tychoc

RE: GP Ultimate Bipe Setup
 

hey guys my ultimate had its maiden flights two weekends ago. It was a perfect day and the flights all went well with the help of my friend. didnt have enough airleron throw on low rates. Only a few click here and there for trim. Landed like charm. My red and white is very easy to see. Just need a higher pitch prop to try for the next flights ASP 80 13X6 want to try a 13X8

Good luck to all

Steve

RE: GP Ultimate Bipe Setup
 

Heres a pic before going up for the first flight

RE: GP Ultimate Bipe Setup
 

The only thing I did not like about the kit was the single aileron servo. I just could not get enough throw on the ailerons,and I was afraid one servo may not handle four ailerons in extreme manuevers. So I decided to build sevo bays in the wings. This was done after the plane was built and flown several times with the single servo. With the dual servos I get much better response and a little more throw.

RE: GP Ultimate Bipe Setup
 

Cool acam37. How about a picture of the whole airplane. I like your color scheme.

Very nice bipe sprvw. How does it like the snow skis? We don't have any snow on the ground anymore but temps just above zero. I put skis on an electric plane i have, but only got to fly it off the snow a few times. I was impressed how well it flew off of the snow though. It was almost like flying off of pavement.

Keep up the good work and PLEASE keep them photos coming!! :D

RE: GP Ultimate Bipe Setup
 

The ultimate loved the skis and so do I. Flying in the winter is great, there are 4 of us that regularly go out in the winter. Its been very cold here the last couple of weeks, cant wait to get out again and test the bipe out some more

Steve

RE: GP Ultimate Bipe Setup
 

Ok, so here's my progress so far.


-tychoc

RE: GP Ultimate Bipe Setup
 

Glued the stab to the fuse tonight. Made sure the stab and wing are parallell using a laser.
Tomorrow morning before work, I will glue the fin and then start the turtledeck assembly this weekend.

Those of you that have finished the Ultimate and are using a 4stroke engine, can you take a picture of the throttle linkage for me? I'm unsure as to how it should be routed.

Thanks,

tychoc

RE: GP Ultimate Bipe Setup
 

Hi tychoc, I am running an OS four stroke and when I ran my linkage, I drilled the hole they have marked for the 2 stroke throttle hole and used a "J" bend in the throttle control rod. It seemed to work pretty good, but I still have not ran the motor in the plane yet. I got the idea from a review someone did on this plane and that is what they did.

RE: GP Ultimate Bipe Setup
 

By the way, very nice job on the framing of your plane. I see you decided to go with an aileron servo per side of the wing. I kind of wished I had done the same thing. Some of the flying I do involves the use of flaperons and with just one servo I can't do it. I will probably redo it next fall, or maybe make the single servo bay wider and mount 2 of them side by side. I don't know yet.
Looks good, Keep them picts coming.:D

RE: GP Ultimate Bipe Setup
 

Here is mine. The yellow really shows up good in the sky. And the stripes help with orientation.

RE: GP Ultimate Bipe Setup
 

tychoc

I'm not building this plane... but I have built a couple with 4strokes and had linkage problems... a hog bipe and the latest being a kadet sr arf for my daughter.
I bought a strip of carbon fiber material from the lhs and fabricated a tiller arm about 2-2 1/2" long and 5/15" or so wide. Drilled a mounting hole in the middle and linkage holes on each end. Mount this "tiller" using the middle hole on the outside edge / towards the nose of the motor mount. Run your throttle cable to the linkage hole at the bottom of the tiller and make a 2-56 or 4-40 linkage rod going back to the carb. If you take your time this makes a nice linkage and get you away from the cramped space of the rear mounted carb on your 4stroke. If you want to see a pic I can try to get time this weekend to take a pic of my daughter's kadet. Can't show you the hog bipe... someone else has that [:@] [8D].

RE: GP Ultimate Bipe Setup
 

I think I understand what you did, but a picture would be good when you get a chance.

Here's this mornings progress.

Thanks,

tychoc

RE: GP Ultimate Bipe Setup
 

I just tried the incidence meter today, and I have a -0.5 deg incidence between the stab and the bottom wing. Should I try to correct this?

thanks,

tychoc

RE: GP Ultimate Bipe Setup
 

I read in a review that a slight negative incidence on the top wing is desireable. It supposedly helps with the way the plane handles. My incidence came out right on, but setting for a few weeks, i rechecked the incidence and now my top wing is also setting at a little less that -.5 degree. I am going to leave mine alone and see what happens. If anyone else knows for sure that the incidence should be the same as the bottom wing, please let us know before we re-kit these planes. :D

RE: GP Ultimate Bipe Setup
 

I finally maidened my ultimate today. Start-up was great and the os70 ran strong. Overtheedge came to the field to watch and offer some support. It was a tad breezy, but after some deliberation, I finally decided to give it a go. I decided to taxi up and down the runway and if I felt comfortable, I would ease it into the air. I started down the runway and that os just sounded right, so I gave it about half throttle and up it went. I gained some altitude and started a right hand pattern. On the second pass I noticed something fall off of my plane. After a slow fly by, we noticed I lost one of the two most important items required for making a successful landing. Thats right, I lost one of the tires. From that point on, I really couldn't tell you how the ultimate performed, I was too busy worring how in the he-- I was going to get my first kit built pride and joy back I one piece. I went around one more time and settled into a landing pattern. I kept the wings tipped in the direction of the one tire that was still there. I did notice how well this plane handles on final approach. I touched down about 3/4 of the way down the runway. (we have tall weeds at the far end of the runway and I was set of putting it down in there, but at the last minute, I decided to set it in the runway so I would not tear up the covering.) The on tire touched down and rolled out for a while and then the other wing tip lost lift and the tireless gear touched the ground. The plane spun around and flipped once and came to rest upright. As we approached, we notiiced the there was no damage. Maybe a little tweak on the gear, Maybe! This thing held up great. This is why I will continue to build planes. If this was one of my arf's, who knows what it would have looked like.
Tomorrow I will fly it again. I got rid of the other bolt style axle and put on a set of dubro axles with thread locker. I will let you know how things turn out tomorrow. :D
Tim

RE: GP Ultimate Bipe Setup
 

Congratulations on the successful maiden, even though you had the tire incident. Glad it went ok.
I'm still slowly building mine.

-tychoc

RE: GP Ultimate Bipe Setup
 

Congratulations! Be sure to give us a full flight report when you have another chance to fly.

Mine is just about finished except for the cowl, which I plan to order from Fiberglass Specialties this week.

RE: GP Ultimate Bipe Setup
 

I got a chance to actually fly my bipe yesterday. It was amazing. The OS70 is a perfect match for this plane. It was a bit breezy, but I felt comfortable enough to ease it off of the ground. I once again started a right hand pattern and gained altitude. It flew like it was on rails. I ran a tank throught it to finish the break in process and came in for a landing. This thing lands like a trainer. I gased it up and back to the air. I gained a little alt. and pulled it into a loop on low rates. It tracked perfectly. Snap rolls were axial and quick, again on low rates. I debate on throwing the switchs to high rates, but after I saw how the plane reacted on low, I decided not to try. (I set the throws way higher than the plans recommended.[>:]). I will probably set the low rates a little lower to accommodate for sport flying and set the highs as recommended. I also did some whip stalls, and just plain tossing around and this thing was predictable all the way with no surprises. It is considerably smaller than my HogBipe so it was a little intimidating at first, but this has just become my new favorite airplane.
I would recommend this kit to anyone. This is my first build and obviously even I got it right. The destructions are easy to follow, and it seems that everything just snapped together and lined up perfectly. Build time was short for me, (4 weeks start to finish.)
I just love this plane!
Tim