Badland Part 103 Pilots and Builders Forum

CALLING ALL 2-STROKE ENTHUSIASTS It's been a while since I've touched this thread, but the testing has continued, and I hate to admit that I may be stumped. Since my original post, I've dropped the main jet all the way down to a 120 (from 158 originally). I've moved the needle up and down to try to ...

Also, as for the alignment (and opening the end of the control horn sleeve), it doesn't need to align perfectly. Mine doesn't - it's offset just a bit - (maybe half an inch or a little more?) It's not likely to add much resistance as a result of such a small amount. Did you mount your cable guides t...

Okay, so for starters, it looks like your bolt through-fittings for the wing spar mounts were already cut and shaped, but as you say thre is a gap. Is the gap the same for the front AND the rear mounts? (Keep in mind that the rear mounts, once fitted, are semi-permanent - only the front will get a b...

As for covering, I have no experience with anything aside from the Ortex, but I have a fair amount left over. Let me know if you'd like me to ship you a sample. It's easy to work with, and the glue is odor free and non-toxic, which allowed me to cover lot of my surfaces in the living room. Something...

Okay, so for the spar jig, it looks like your spar mounting fixtures have already been trimmed, so it's not necessary. My fixtures were longer than the inner diameter of the spar and as a result had to be gently filed down so they would fit snugly into the spar. I beveled them as well, to match the ...

Happy New Year! I mounted the flaperon mounts first, then covered them. Either way works, but I preferred the cleaner look of the fabric covering the aluminum base plates. Did your gauge not come with both sensors? (Or perhaps it's the Falcon CHT/EGT gauge that comes as a package.) Looking forward t...

Oh man, the neighbor cut your line? That's tough, but nice to see you back on here! Hopefully the weather gives you a break soon and you can get back to building! I'm very much enjoying your updates and following your build.

It can certainly drive a BUILDER crazy! haha

Hi there - actually, it's the Polini Thor 200 evo swinging the e-props fixed pitch. 59.1" diameter prop. I am told static timing should be around 7200rpm, but that may be for a paramotor, which has a 51" prop typically. Redline is closer to 8500 or so, I believe. I seem to be averaging 540...

It certainly grabbed MY attention!

Looks good. I love the powder coating. I think I know what you are talking about now. I didn't have it on my parts list; it was added after my kit. (Mine was the first kit sold.) Chris actually brought the piece of tubing when he came to help me assemble my wings. If it's the 2.5" diameter alum...

I happened upon this today while driving along old Route 66. Roy's Cafe is one of the iconic pit-stops along the old route, with a dirt runway behind it. I had stopped there before to chat with the owner, who is slowly working to bring the place back to it's previous glory. A few years ago he manage...

Can you clarify what you mean by "the piece of aluminum tubing "jig" for the spar ends alignment" and "trimming" the fuselage mounting tubes and drilling out the mounting holes"? I'm not sure I recall either of these processes in my build, but can possibly provide ...

Your build is coming along beautifully! Like yourself, I also wanted turnbuckles for the rudder cables. I mounted mine next to the seat in the cockpit, in the interest of keeping my CG as far forward as possible, since I am using the lightest Polini in my UL. I also love the mounting setup for your ...

This should be fun. It'll be nice to be able to chat with some like-minded people building the same craft.

I like the drain quick-disconnect, as I haven't yet included one in my fuel delivery system. Does the tank sit back far enough not to interfere with the hose or bracket? And I'd love to see your fuel line routing when you are at that point.

There have been some questions regarding the routing of the flaperon cables in a way that most limits friction and makes stick pressures as light as possible. As I recall, the first Badland may have routed the cable through the butt rib as close to the rear spar as possible. In the interest of makin...

For those of you who have built (or are currently building) the main gear on your Badland kit, I'm curious as to where you landed on your geometry. Positive camber, negative camber...which do you prefer and why? The same question applies to toe-in versus toe-out. From what I can tell, the toe isn't ...

Congrats on your assigned registration number!

Is it possible to register for your number on-line? And if so, it may be beneficial to post the link here.

The wet clutch is a definite plus in my opinion. Since I'll be taking my Badland to a local lakebed which also hosts ATVs, dirt bikes, and families camping, the idea of a stationary prop at idle appeals to me greatly. I wouldn't want to be responsible for a dog or child running into the spinney bit ...

The view over my hood COULD be a little better with the Polini, especially since my tailwheel is a few inches higher than it would be without the tailwheel dolly. I haven't added a seat cushion yet, which I think will help quite a bit. However, if you are at least 5'10" (which I am just a hair ...

Hi Kurt. I'll try to get some shots of my routing and post them here. The pictures in the build manual are actually of my plane, but I didn't notice any pictures of the lower routing, under the gas tank included.

I thought I'd open a conversation about jetting, since I'm at that point in my build. My Polini came with a PWK 028 carb out of the box. It had a 148 main jet and a 45 pilot jet installed. On initial run (not break-in; this is a used engine and had already been broken in and flown but with a differe...

And it always helps to have a chase vehicle! Very cool video.

I was wondering the same about the tail spring. I'd love to see more pics of it. Also, how high does it lift the tail? I believe mine lifts it maybe three or four inches.

Todd is right - at full flap setting, there is almost zero flaperon "throw". I actually plan on blocking off the full flap setting on my plane to prevent accidental use of full flaps and the resultant loss of aileron authority.

The site selling the B1-RD plans definitely sounds like a pirate operation. Likely they are the correct plans, but won't offer a serial number and may introduce legal issues to duplicate. If you aren't familiar with them, and your main interest in a UL is a very low stall speed, check out the Bloop ...

Fantastic read, thanks for posting. I made the investment in VGs, and am looking forward to attaching them to my wing. This article confirms that it was money likely well spent!

Wow. Some beautiful aircraft to be seen there. Thanks for sharing!

Connects via WiFi to a tablet. Very cool. And considering the cost or instruments, and if you kept the panel to maybe three flight instruments, the price seems a bit less intrusive.

Not a bad idea to increase the fences in increments and test. I should be so lucky as to have the plane float down gently in a stall. That would be my ideal for sure!

Now, where do I find me one of those parachutes?

I think at that point I fly you out here to test it for me. I'll even rent you a parachute!

I would love to see the end result of an "N" numbered Badland, with all the bells and whistles. I think it would make a great platform for something like what you describe, and likely be an easy transition for you. According to Chris, it flies more like a GA aircraft than like an ultralight.

"How do they affect stall? I would think that because a fence increases lift at the tips, stalls would become more abrupt and require a bit more attention than without the fences" Interesting, as I was wondering the same thing. My intuition (which is often incorrect) would think that they ...

Allen, there are a lot of options out there, that's certain. The biggest issue for me is staying under the 254 limit. I bought the Polini used from Chris; it was on one of his earlier builds which he had sold with a different Polini hanging off it (water-cooled as I recall). For now it fits my missi...

I raced two strokes and as a result DID run them at high RPM for extended periods of time, and I was using ethanol gas without problems. Which made me curious as to why the Polini might be so susceptible to issues from ethanol. Todd may have nailed it with the "water attraction" issue. It ...

Thanks for the response. I had actually expected that the Kolb would be more nimble. Interesting.

I had actually seen one person demonstrate folding the wings solo, but it was less than graceful, to say the least.

The topic only comes up because of a recent Facebook conversation I had seen concerning the Polini and holed pistons. Apparently several other Polini owners have complained about similar issues; engine seizure, sudden stoppage, etc. Polini's response was to avoid using ethylated fuel. Not sure if th...

As I get closer to my first engine run, the issue of ethanol levels in the fuel here in my sate of California has been raised by other folks using Polini engines. Polini recommends (strongly, at that) not using fuel with higher than 5% ethanol to run their engines, or run the risk of holed pistons, ...

"Perhaps the simplest advice of all: Slow down! You don't need to go full speed down the highway." Wow, some serious oversight on my part not to mention this...probably the most important tip! And also probably the hardest to follow, if you are impatient like me, and just want to get those...

Allen, to backtrack a bit, can you tell me more about the flight characteristics of the Kolb? I was always under the impression that they were nimble planes. One thing I really like about the Kolb is how it folds, with both wing and tail leaving you with a pretty narrow structure when folded. I wish...

Kurt, I'm envious of the size of your workspace. I built my F2 in a (barely) two car garage. It's a squeeze for sure! I'm in Los Angeles.

Hi fellow Badland owner/builders. I thought it might be a good idea to start a thread regarding tips and tricks for trailering. Since I am getting close to the point of moving my UL to the nearest lake bed to start taxi testing, I thought it might be a good idea to start a thread regarding tips and ...

Looking good - definitely keep the pics coming! And I am super envious of your workshop, but you already know that.

Hi Allen. I think you would have no problem building a Badland to be a legitimate part 103 UL. I covered mine with Oratex and was very conscientious of weight in all regards when building mine. It turns out that I didn't really need to be...mine comes in at roughly twenty pounds UNDER weight...to th...

Here is a nice option for a BRS. The price is fair, and it's comparatively light.

http://www.newmexicotrikes.com/Comelli/ ... hutes.html

I have a feeling that the dihedral is a double edges sword, and probably a fine balance. You want enough for positive stability, but not too much that you lose lift, as you mentioned. Chris had mentioned to me that he had experimented with the dihedral on one of the finished kits he sold. As I recal...

Thanks! One wing has a few more wrinkles on the leading edge than the other, but neither is bad. They should fly nicely (I hope)!

My Badland F2 is almost complete. I am closer to the first engine-start. Here is how it looks currently. Next step - build a trailer for it. My criteria are something that can be collapsed to fit in the driveway and that allows me to tow the plane nose forward. Do I custom build the trailer myself, ...

My Badland F2 is almost complete. I am closer to the first engine-start. Here is how it looks currently. Next step - build a trailer for it. My criteria are something that can be collapsed to fit in the driveway and that allows me to tow the plane nose forward. Do I custom build the trailer myself, ...

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