Coyote`s Skywalker 1900

[Coyote]

Hi guys, build number two is underway. I`ve not got far into it but I have made a start so here we go :)

Skywalker 1900
Motor : Overlander 980kv
Prop : 9x6
Esc : Turnigy Plush 40 Amp
Lipo : 1x/ 2x 5000 mah 4S

Osd : FY Hornet OSD
Autopilot : FY31AP

Fpv
Camera : Seawolf 690 tvl
Vtx : ImmersionRC 5.8ghz
Gopro : Yes


The 1900 Skywalker is in most parts apart from the wing length no difference to the V5 apart from the camera pod. So no need to show loads of pics or parts you have already seen hundreds of times over.

This build is going to be a lot different to my last few walker builds, a lot different, so lets begin our journey :)

Ill start at the first mod`s

First was the carbon tail rod, last time I left it how it was and ended up with a slightly off tail that wobbled, tape did help loads, but had to go down a stronger more rigid route this time. I ordered 0.5mm x 10mm carbon strip. I cut half way down the carbon rod and epoxied it in place making sure cables were inside the tube but clear



Next up was something I wanted to do ages ago, and I have on the X8. Make a ply base floor for securing the lipo properly and to give the FY31AP a solid base too.

I also have made a second base for the Hornet OSD higher up, so its not wasting space, easy to access ( both hatches cut out )



I made up the camera pod, which I like, but they cocked up the laser cutting so either Skywalker or 1900 is the wrong way around when stuck together.

I added servo`s for the tail too and glued the carbon etc in place for tomorrow

[g.collins]

looking good mate, I have don a similar thing with the base of my walker.
;) G

[Coyote]

As the night moves on.........

Next mod was the nose, it now sports a big open mouth :)More on that bit later in the thread



After that comes the wing, I hate the rubber band means of securing them, very old school, rubber perishes in UV etc. So I took a knife to my wings and cut them down



I glued them together adding dowels for extra strength, then I added dowels to the wing saddle too, the new part will now be permanently glued to the saddle.

Three main reasons :

1) the motor mount is a particular weak spot, with the new piece glued to it, it will now be a whole lot stronger
2) No rubber bands to forget or fail in flight
3) Another weak spot is to the front of the saddle, now it wont be :)



I have not decided wether or not to use the space below the saddle, I don`t think I will be though

[Coyote]

Thanks G, this ones going to be a bit different this time, hopefully for the better :)

[bignose13]

Like the idea of a ply base Ian, will defo be doing this on my next walker

[wgt40w]

What ply do you use - 3mm ??

[Funky Diver]

Looking good Ian, looking forward to the rest of the build!!

So I took a knife to my wings and cut them down

Now that's extreme clipped wing mod right there :D

[Coyote]

Thanks Simon, more ply in now, next update shows drastic mod :)

The ply is 3.6mm wgt40w, light enough but has a decent amount of strength too

Cheers Rich, more to come this afternoon :)

[Coyote]

Time for an update :)

I have now finished adding the ply, I mentioned on chat last night that my walker looked like a fish................. I was`nt kidding :)



Previous builds really annoyed me with the Go Pro always being in shot of my flight cam, I love the Go Pro footage but it was spoiling my experience having a face full of its bum in my view. So I have cut the nose off and made my own Go Pro holder. Its pretty strong, holds the Go Pro back out the way for protection, but does not show up in the recording


Next up was the Vtx to plane wires, after a few builds now, from time to time I have needed to swap wires about. With the normal setup feeding wires through the glued fuse was a nightmare, so I installed a carbon tube in so it should be a whole lot easier now



More wood has now gone in, two brackets and three straps, the straps are for securing up to 2x 5000 mah lipos. The second lipo can be any size because it is sat on the CG. To do this meant of course I could not mount anything on the walkers base. No problem, but that can wait ;)



The final mod for this update, I turned to FPVUK`s own build Guru Mr SteveW :)

I liked his removable landing gear especially when hand launching can be hit and miss by yourself, so I have started the wheels build as per Steves demo :)



More to come

[FPVSteve]

Heh nice ... credit needs to go to ElectricMick though, I just had the idea to velcro them to my plane. Incidentally, where did you get those wheels from? I need some fatter larger ones.

[wgt40w]

Good choice of wheels here !
http://www.ebay.co.uk/sch/Aeroplanes-/19163/i.html?Type=Parts%2520%2526%2520Accessories&_nkw=wheels&_catref=1&_dmpt=UK_ToysGames_RadioControlled_JN&_sac=1&_trksid=p3286.c0.m1538

[Coyote]

Stockton Modellers Steve : http://www.stocktonmodeller.co.uk/

[FPVSteve]

Meh, postage is same price as the wheels, lol.

[Coyote]

OK now for some toys to go in................

With the base being left available for the lipo`s I have made two brackets higher up in the fuse. This is to hold a board with my electronics on. The problem being that high is any adjustments to FY31AP would mean I have no access, this is solved by the electronic base being velcro`d to the brackets. The whole board can pull down, any adjustments made and put back into place, the velcro also helps with vibration dampening fr the FY31AP as well



This is the flight side of the board, Telefly OSD yet to be added. Nice neat and unobstructed


Next on the other side is the power side :



4S power comes in and distributed to a variable step down power supply, a 7.5 Amp Turnighy Bec and the Chainlink Rx is to the rear of them. This way power and signals, 12, 14 and 5v all kept separate from each other too

So with the board in place, here is how its looking so far ...........

Loads of space for lipo`s, FPV equipment well clear of damage, GoPro mounted with a clear view and out of view from FPV camera

[g.collins]

Some nice ideas their mate, after your first flight Ian you may need to adjust the pots, can you get to them OK.
;) G