Official Skynetic Bison XT STOL Discussion Thread

[James]

I seem to be missing the connectors/extensions for the belly light and rudder light. Both wires end in the top rear hatch. Should they connect to the wing light harnesses so that they flash? Also dealing with the heating issue on the light controller. Waiting on tire glue and hope to maiden it later this week. Trying to decide if I want to use an Aura Light or just a Spektrum receiver. I agree with all the comments on the tail wheel - seems a little rinky-dinky!!

I used an 8 channel RX for this. After Throttle, Ail, Ele, Rud, Flaps in channels 1-5, I put the white and black lead in channel 6, 1 red and black in 7 and the other in 8. The white and black lead should control the lights on the wingtips and the sides of the fuse by the nose. The other two are the tail and bottom fuse light. Or you could get a 3 way lead for all the lights for a 6 channel RX

[Atrix]

We have a great review of this plane up on our YouTube channel "Model AV8R". Check it out guys and please sub, comment, and give us a thumbs up to help us grow the channel. Lots more from MRC to come on it!

Watched your video this morning; it was great. I am going to try your setup this weekend.

[James]

I have not attached the slat rod yet but I did not have an issue with the flap rod once I moved the servo to the one extreme. Here is a picture of what I have:

That's how it should be. With the servo in that position, you will have no slats and flaps, with the servo then at center you will be mid flap and mid slat, and 100% the opposite say would be full flaps. Obviously, you then change the endpoint throws in your TX to suit your needs.

[Starck Mad]

We addressed the tires and lights in our video. With the tires we held ours in a bowl of water to see where the leak was and added glue there. Fixed it right up. Lights were confusing at first but also turned out to be no issue...just needed a y harness. The plane is awesome to fly...worth it to get through the build. More advanced build though.

[Starck Mad]

We have a great review of this plane up on our YouTube channel "Model AV8R". Check it out guys and please sub, comment, and give us a thumbs up to help us grow the channel. Lots more from MRC to come on it!

[Gilatrout]

Well, even with tire glue the tires on mine won't hold air.



*sigh*


I'm definitely getting a good dose of buyers remorse here.

James, Tom, Alpha, Given the uniform and manifest problems, what/when can we expect from Motion to correct the issues? Looks at a minimum the light controller.needs.to be recalled and replaced. The tail wheel is also not up to standard MotionRC quality.

[2much2do]

Did it at least fly well at all?

[MJ4RC]

Hello all, I finally maiden my Bison XT on 6S (smaller prop), best on grass for take-off and landing. Unfortunately, I have same issue with other post from overheating light controller, tail wheel, inaccurate assembly guide, loose wing LED, wiring and etc...☹

[2much2do]

It’s counter intuitive but you push to lower the flaps on this model. In the way I have it set up, I get maximum deflection. At full deflection without limiting it in the radio, they are straight down.

Ohhhh shoot, yeah, push for flaps, that completely makes sense. Thanks.

[Atrix]

Umm...Your photo would give you nearly 0 flap deflection. You get a couple of degrees before your rod bangs into your servo. That's why gilatrout cut his down.

It’s counter intuitive but you push to lower the flaps on this model. In the way I have it set up, I get maximum deflection. At full deflection without limiting it in the radio, they are straight down.

[JoeofDeLand]

I seem to be missing the connectors/extensions for the belly light and rudder light. Both wires end in the top rear hatch. Should they connect to the wing light harnesses so that they flash? Also dealing with the heating issue on the light controller. Waiting on tire glue and hope to maiden it later this week. Trying to decide if I want to use an Aura Light or just a Spektrum receiver. I agree with all the comments on the tail wheel - seems a little rinky-dinky!!

[2much2do]

I have not attached the slat rod yet but I did not have an issue with the flap rod once I moved the servo to the one extreme. Here is a picture of what I have:

Umm...Your photo would give you nearly 0 flap deflection. You get a couple of degrees before your rod bangs into your servo. That's why gilatrout cut his down.

[Atrix]

Tail wheel assembly is going to need some work. There is so much slop in the springs that the wheel hardly moves even though the rudder is moving to full deflection.

Yeah, at the field yesterday I was hardly able to control it on the ground, turns are super wide on pavement and non existant on grass. I had to hand wheel it out to the runway. I ordered a set of assorted springs off Amazon with the idea that stronger springs will help keep the wheel and rudder connected.

[Gilatrout]

Tail wheel assembly is going to need some work. There is so much slop in the springs that the wheel hardly moves even though the rudder is moving to full deflection.

All in all, this is going together much more like an ARF instead of a PNP foamy. Little things here and there that need adjustment or fitting.

Im taking a break for today and making some wing bags for it.

[2much2do]

I hope Motion is Watching, this seems a large number of complaints, without any flight reports coming up good.

Mine Arrives tomorrow. I'm trying to still be hopeful

[Atrix]

I think the long rod provides a large range of flap movement.

I was also missing the screws that mount the landing gear to the fuselage. The manual says 2.6 but the part they screw into is actually an M3 thread. I used some extras I had laying around.

[Gilatrout]

I'm confused that picture makes the Flap rod look WAY too long. You set the servo up that way with the flap flush?

Yeah, that's the way mine looked before I cut down the rod.

The next issue is the manual calls for 2.6 x 12 screws for the undercarriage. The bag labeled with these are a set of self tapping screws that will not connect the undercarriage to fuse.

#edit#
It looks like the whole undercarriage instructions are incorrect. Using 9.1.2021 instructions

[2much2do]

I have not attached the slat rod yet but I did not have an issue with the flap rod once I moved the servo to the one extreme. Here is a picture of what I have:

I'm confused that picture makes the Flap rod look WAY too long. You set the servo up that way with the flap flush?

[Atrix]

Has anyone noticed it had problems with the control rods being too long?

Both the flap rod and the slat rod are too long. I'll need to cut the flap rod in order to center the servo. The flat spot on the slat rod extends well past where the grub screw meets the rod as well.

I have not attached the slat rod yet but I did not have an issue with the flap rod once I moved the servo to the one extreme. Here is a picture of what I have:

[Gilatrout]

Has anyone noticed it had problems with the control rods being too long?

Both the flap rod and the slat rod are too long. I'll need to cut the flap rod in order to center the servo. The flat spot on the slat rod extends well past where the grub screw meets the rod as well.