I recently found myself with time on my hands. The first thing I did, was start looking for information and parts for the kitfox 3 kit I picked up a few years ago. It was kind of started by the previous owners, meaning the landing gear, floor boards and control mixer/ rudder pedals were loosely mounted.

I was looking through the printed manual and paperwork, and realized I have nothing for a chain of custody, except the original packing list to the original buyer with the kit serial number. 

The wings, except for the flaperons, 2 13gallon ethanol resistant fuel tanks, struts and jury struts are missing. Basically I would need the spars, stiffeners, ribs, false ribs, bracing, brackets etc...

I have have used a tracing from JimChuk and pictures of KF3 ribs and managed a pretty close CAD file for a rib without a tail. I have a CAD file from Willja67 that matches fairly reasonably, and a Masonite template cut off of my cad file that matches pretty closely to the tracing. It wouldn't take much to get a template with a tail.

I have acquired the rest of the controls, except the tube that goes to the elevator (I have the other parts of the tube). I also went through and ordered pretty much all of the hardware out of the manual. There is no motor, mount, or prop, however, I have a bump style cowl. 

With all of that said, with what I have read, it seems like it may not be possible to register it once built. Can anyone provide direction here? Would it be better for me to just sell the parts I have at this point? 

Getting ready to replace the windshield and doors - and trying to decide between Lexan vs Acrylic/Plexiglass.  

I've been reading through the archives here and at TeamKit - and there are good arguments for both.  

Seems like most posts have been on use of Lexan, but a few mention Lexan's sensitivity to gas, UV, and crazing around bends and so strongly recommend acrylic.   

The price here is almost the same 4'x8'x1/16th" sheet of Lexan ~$62 and $75 for Plexi - so pretty much a wash there.

Downsides on acrylic I've read are propensity to crack when drilled or bent, easier to scratch but much easier to buff.

The plane sits outside with a cover.

So any suggestions?    Which way should I go?   Do I heat at the forward spar bend?

Cheers,

Owen

Just installed a new shiny and beautifully crafted NR Propeller on a Kitfox 4-1200 powered by a Rotax 912 UL. It replaced a 72” 3 blade tapered Warp Drive. There has always been even with the WDP a bit of vibration on full idle especially at short final with the engine completely unloaded and the “wind milling” Propeller apparently driving (leading?) the engine. Now this has been drastically aggravated with the 2 blade NR. 

Is anybody out there experiencing the same thing or a similar issue at final approach at full idle? The vibrations seem to increase proportionally with airspeed at full idle rpm. No issues once you add  a little power and load up the prop and engine. 

I'm am looking for copies of Service Bulletins #2 and #3 For the KitFox II . I went to the Kitfox Manufacture site and went to the Service Bulletin Download area. When I tried to download SB #2 and SB#3  SB # 1 Downloaded instead. I think I emailed KitFox but I did FaceBook them and someone stated they would pass it on. Never heard anything else. Hoping someone out there has copies. I did a web search and found # 3 but it had typing over top of the bulletin haking it unreadable

Thanks , Safe Living & Flying

Regardless. It has the small 6 gal wing tanks feeding a header tank behind the seat.  I bought a 12 gal tank that has KF 3 on it.  Will a KF3 tank fit into a KF 4?  Anyone know?  If it will fit, does anyone have the mate for this. If it will not..anyone want to buy the KF 3 tank?  The one I have is for the passenger side. Need a pilot side.

Thanks

Kitfox_Brochure_Denney1989.pdf

Kitfox_General_Info_Denney1989.pdf

Sorry if it's a dumb question but I have never heard the reasons for having the wood stringers. 

If i were to guess I'd say these might be reasons:

1. Improve the aerodynamics of the fuselage

2. Possibly structurally reinforce some tubes against buckling. 

3. Add some internal volume if a control line or something needs to be run outside the frame. 

4. Keep fabric from flapping too much.

5. Cosmetic

Anyway if i can lose a few ounces or even a lb or 2 that'd be nice.

During my research, I noted two things, one is that the new build manual uses screws instead of rivets, but too late for that, I have already drilled the first door, so on to rivets for me....all 56 per door.

The latches that I have appear to be the Murle Williams latches, but can't seem to find any good pictures of them mounted or instructions of how they are supposed to be mounted.

If I don't get any answers here, I guess that I can try and give Murle a call next week, but am hoping someone here can assist.

It is probably simple, but I am just not seeing it and there doesn't seem to be any good way to mount it with the limited door gap around the frame.

TIA

The prev owner was running fram G2 clear plastic filters on the run from the wing tank to the header tank.  At first look I liked that idea to keep an eye on any junk and keep the rest of the system downline clear.

But at second thought I wondered if I were to get a big enough slug of water in the wing tanks, would that possibly quickly clog up those filters and cause a problem?  If so wouldn't it be better to let any water go into the header and sit in the bottom?  (where there is a large area for water collection below the pickup line)

Is there a general consensus on using filters in the line between the wing and header tank?

Question 2:  is a gascolator required?  I would like to bypass it and use clear filters instead.  It just seems redundant since the header tank drain point is the low point in the system, and I'll have filters in other locations.  I aslo do not like the drain point in the engine compartment.  I've had em seep in other planes and never liked the idea of fuel dripping that near the muffler!

Got a favorite?

What are pilot & A&P experiences, and what ideas/suggestions can be provided?