technoid
Well-known member
Yeah you're right it's a nice Cub so I'll scratch it off my list. But the Ford Tri Motor has never done much for me.
XF-3D
- Thread starter technoid
- Start date
BrokeDad
Well-known member
How about browsing through here. You might find something ....
https://www.militaryfactory.com/aircraft/radial-engine-powered-aircraft.asp
https://www.militaryfactory.com/aircraft/radial-engine-powered-aircraft.asp
technoid
Well-known member
Thanks I've looked at quite a few war planes I'd put up a list but in the end I don't think I'll do one so I just keep them to myself. I probably need to do like you said just take some time off and let it happen when it happens.
Kha'Zix
Active member
How about a clipped wing cub? The one that can be downloaded flies weird. I haven't gotten it to perform quite like mine
technoid
Well-known member
Boy that's a nice plane. I like the RC field too, where's it located if you don't mind me asking?
Kha'Zix
Active member
It's Carl Henson Field in Eugene Oregon
Kha'Zix
Active member
And thank you very much!
technoid
Well-known member
That's a great looking field.. BTW the local field here is named Henson Field after a fellow I flew with back in the 80s named Bob Henson. He was a retired guy and was always there so they named the field after him when he passed on. So what is the plane and engine in it I meant to ask about that too but forgot.
Of course you do kinda resemble one of the guys in the balcony.
technoid
Well-known member
I may have fixed the gear dancing problem but I need to test it more to be sure. I made a change to the pivot points and haven't been able to make it dance since I made the change. When you look at the gear dancing in a 3d field and zoom in on it what's really happening is the tires on both sides of the main gear jump back and fourth from right to left but the nose gear never does it. So a while back I had an idea but forgot about it and never tried it. What I did was align the pivot point x-axis for the tire and the tire collision mesh the same as the gear strut, so all those pivot points align vertically. I tried for quite a while to make the gear dance and couldn't but that's the way it works, sometimes I can't make it dance for a long time and then it comes back. So I'll keep playing with it and see if I can make it dance after the fix. Hopefully this will fix the problem because I really want to use the springy gear. Even though it makes the tire stick into the wheel well when it retracts. You'd think they'd disable the springy gear extension when the gear starts retracting. Anyway I hope I fixed the dancing problem.
legoman
Well-known member
tech I read your post and it might be because its almost 3am here, but I could tell it it was bouncing currently or not. mine is not. I could send you my AV which is not bouncing.
the scale springy gear moves the tire/wheel along the axis drawn between the pivot of the tire/wheels visual frame (~CS_RW, LW, SW) and the pivot landing gear's visual frame (~CS_RG,lg, etc). the amount of travel is determined the distance between the pivots and Stiffness. I dont think the weight of the gear effects the spring rate (pounds per inch). angling the pivot should not do much if anything I am 99 percent sure its angle does not effect the handling of the compression but it location most certainly does affect it.
technoid
Well-known member
First your question about is it still doing it. Last night when I wrote that post I could NOT make the gear dance after modifying the pivot points. But I should have waited till this morning to write that post because this morning I got the gear to dance after quite a few tries. So NO modifying the pivot points didn't fix it.
And yes I agree I didn't think the "angle of a line drawn" from the Tire Pivot (LW) to the Gear Pivot (LG) would cause a problem because I've used springy gear many times and never had a problem like this until "this plane". But since the nose gear never jumps back and fourth I thought it was worth a try to see what happened. But I should have tested it a couple days before writing anything about the modification I tried. So YES send me your AV and I'll try it. But you saw the video I did showing the gear dance it jumps back and fourth a lot and when you look at it close the jump seems to be the distance between the y-axis of the Gear (LG) and Tire (LW).
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technoid
Well-known member
Thanks I'll give your AV a try and see what it does here.
Here's the video I did of the gear dance.
doug schluter
Well-known member
haha BrokeDad , but with this talk about pivots and bouncing gear i seem to remember that issue back in G4 and the fix i beleive was the placements of the pivots to the landing gear
technoid
Well-known member
Thanks Doug I tried one thing that came to mind so if you have any suggestions let me know.
technoid
Well-known member
legoman.
I've been playing with your AV a lot and so far the gear haven't danced but I need to play with it for a couple of days because sometimes I can't get it to happen for a day or two. So I'll let you know after I play with it more.
I noticed you did lots of stuff to the physics would you care to say what you think you did that would have fixed the gear dancing problem? Thanks for your help.
Also I noticed the aileron rolls don't wobble in your AV what did you do to fix that. I was thinking it was the pivot placement for the fuselage but I haven't played with it to see.
I've been playing with your AV a lot and so far the gear haven't danced but I need to play with it for a couple of days because sometimes I can't get it to happen for a day or two. So I'll let you know after I play with it more.
I noticed you did lots of stuff to the physics would you care to say what you think you did that would have fixed the gear dancing problem? Thanks for your help.
Also I noticed the aileron rolls don't wobble in your AV what did you do to fix that. I was thinking it was the pivot placement for the fuselage but I haven't played with it to see.
doug schluter
Well-known member
im trying to find where we had discusions about the gear i think it was G4 but haven't come across it yet
i found some of the discusions here , scroll down read what jeffpn and others were talking about " If the pivot is not set properly, springy gear will bounce uncontrollably. There is nothing a user can do to fix that, except not to use springy gear". with this comment so i take it back then the modeler had to set the pivots in the right place
Requestish
Hey all, I'm one of those folks whose using real flight to limit the damages caused by my inability at the field :D Currently, I'm flying a high wing trainer (again), after obliterating my .40 sized Tucano after about a dozen flights. I'm fixing up the Tucano, but I would really like...
www.knifeedge.com
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doug schluter
Well-known member
here is another link to the gear bounce fix dhk79 fixed his issue with gear bounce with better alignment of the pivots and gear. scroll down through the info
Bouncing on the runway
Built my first model In 3ds, a copy of an old freeflight bird my dad built and flew in 47 then held on to for 60 years... no matter how I configure it she bounces all over the runway, as if the prop were hitting the deck, if I throttle up an take off she flys beautiful But I can't figure out...
www.knifeedge.com