Anyone have a problem with new Ultimate nosing over on grass. Has a G62 but with all servos in the back it balances. The pants seem a little small for the plane, so I took them off and it was better. I could then take off with full up elevator while getting up to take off speed. On landing, soon as wheels touched would give full up elevators and it would still tip over on its nose and end up on its back. No damage (strong plane). Grass was just cut and should not have been a problem.

Have ordered bigger wheels going from to a 4” wheel. The plane comes with 3.5 Dubro and ordered the same type Dubro. Did not want to go to big. Do you think this will help.

Dan

I am surprised at this, it was never a complaint that I received in the first batch and this is the only one in thes batch so far.

One thing you can do is place a couple washers between the landing gear and the mount on the rear screws only, this will angle the gear a little farther faorward. I did this on one of the original prototype before the design on the fuse was changed to reposition the gear forward.

Can you send me a photo of your plane from the side so I can see how the gear looks? Email it to [email protected].

TF

Another thought. How does the plane fly between upright and inverted? The reason I ask is because nosing over was a frequent problem with bipes that were nose heavy, even when balanced to the manuals balance points. Wheels binding on an axle can do that too. Just tossing some things out there to check.

keep us posted of the finding as i love bipes

Silversurfer,

Plane flies great. Flying upright cut engine and it glides straight for awhile before starting to drop and inverted I have to give some down elevator. The wheels do not seem to be binding. Spin freely by hand.

Appreciate any suggestions or help. Fly off of grass most of the time and love the way this plane flies. It just does not like grass.

Dan

I'm thinking it's just a lot of weight out front.

After everything I learned with the first batch I just always try to talk people out of using a heavy engine.

TF

Tom,

You could be right. The G62 is a boat anchor compared to the DA50. The plane weights dry 18.1 pounds. It balances on the CG but I think that weight up front and the drag of the grass makes it nose over.
Before I give up on the G62 I am going to try larger wheels and a little more weight in the tail.

Dan

18.1 lbs. with a G-62??!! Damn, the new run is a LOT lighter than the last one!! Wow

Dont tempt me im on my 3rd one of the first batch However the evolution 58 I ran in my 2nd one was a beast to keep upright on the runway. I learned fast if the plane is on the ground I was on the elevator. I did go to a 4" wide foam tire and balanced it as far to the rear as I dared I think some one said 6 and 3/8 back was the max i was close to 6" if i recall on that one The current one I am flying is a DA-50 setup and is far more enjoyable to land. The evolution was at least a pound more up front and yes I flipped it over many times. If Tom only knew the abuse i give his planes.

Thanks for all your advise especially, Tom. But no one was able to give me advise as how to fix stupidity. Last night went out to the shop to make sure another plane I was going to fly today was charging and glanced at the Ultimate and all of a sudden I had an epiphany. I looked at the landing gear for the umpteen time and it was backwards. I know I had it on right at some point but during assembly I had removed it and later put it on the wrong way.
Turned it around and still put one washer under landing gear at the back bolts, as suggested by Tom, and took it to the field today and it did not even, once, try and nose over. Did not have the pants on but have now put them back on and will take it back to the field on Wednesday and see how it does with pants. I am sure that it will do great as it did today.

I loved this plane, but now am completely head over heals. It flies like a dream.

Thanks again all,
Dan

lol!!! Thank you for letting us know - maybe you prevented someone else from similar frustration!

sickpup
that is alright way to go!

Finally got to flying field (rain everyday) and no problem with the pants on.

Dan