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Kitfox 1 Build

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Posted

Started to play a bit with the plane.  Gotta get my self back into it again.  Fit my doors and made a poster board pattern of the window also put some markings on her sure is fun to look at. And she now has a name.

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Posted (edited)

Great name!  Just wondering if small letters in Experimental are 2" high - and believe the regs say "Block or Capital Letters at least 2" high - You can probably get it slid by, but depends on how finicky the inspector is.  I believe any "normal" person would be able to read it just fine.  Looks good.  EdMO

Edited by EDMO

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Posted

Flight reports, I want to hear about flight reports.  And flying videos to!  Looking good TJay,  keep at it and I'll get what I'm asking for.  :-)  JImChuk

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Posted

Great name!  Just wondering if small letters in Experimental are 2" high - and believe the regs say "Block or Capital Letters at least 2" high - You can probably get it slid by, but depends on how finicky the inspector is.  I believe any "normal" person would be able to read it just fine.  Looks good.  EdMO

Ha I had to send the file to the DAR before I had them made, He said he would accept that font. And the letters are right at 2 inches tall.

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Posted

Curious if the DAR required the Experimental stickers at each door? While it would appear to satisfy the requirement, mine will not approve either a single sticker on the rear carry thru trim or one each on the inside of each door along the KF4 aluminum center trim strip. Must be on the exterior at each entry.

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Posted (edited)

Curious if the DAR required the Experimental stickers at each door? While it would appear to satisfy the requirement, mine will not approve either a single sticker on the rear carry thru trim or one each on the inside of each door along the KF4 aluminum center trim strip. Must be on the exterior at each entry.

My KF1 & 2 had the single word hanging from the rear crossover - Now I have to go look at the KF3 to see where it is marked - I never thought to look on it.  All DARs are not made the same!  ;<)  I believe the rules also say that you have to advise the passenger of the difference between your Experimental and Factory planes in addition to having the approved sticker saying the same thing on your IP - in other words, unless you are confident in my plane, or brave or stupid, then don't get in!  Ha!  EDMO

Edited by EDMO

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Posted

played with the Kitfox today. After scratching my head a bunch I think I finally came up with a decent heater idea. Not quite done with it yet I need to hook up the intake tube yet.  It will take air from the front of the engine ram air duct thats for another day. As you can see from the pictures the air will flow right through the heat muff and out the bottom through the trap door for summer time operation. Pull the cable on the dash and the trap door closes then air is forced into the cabin. I also packed the inside of the heat muff with stainless steel scrubbing pads. It is all made form Aluminum so the scat tubing is about the heaviest part. Hope it works

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Posted

I have 2 inch scat tube coming out of the heat muff and thinking about feeding it with 1'1/4 scat tube any thoughts on this?

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Posted

There is pressure in the cowl, I get a good flow through my heater with it just being open on the front.  Another thing is the air is bound to be warmer inside the cowl then the outside air, so it wont have to be warmed up quite as much to be just as warm as outside air.  Maybe you don't need any outside air??  As far as sizes, inlet tube can be smaller then outlet tube, cause the air expands.  If my math is correct, 1 1/4" tube has only 1.227 sq. in of area.  2" has 3.14 sq. in.  Almost three times difference.  Maybe 1 1/4" is to small.  1 1/2" tube is 1.77 sq. in. of area.  Half the amount of 2".  Will the air double in volume when heated?  Then again, how much restriction will you get with the scrubbing pads?  Lots of questions that may only get answered when it's built and working (or not working)  On second thought, maybe cowl air would not give enough pressure for what you are doing.  My shroud is much larger, and has a much larger hole.  I even enlarged the entry hole after I took this picture.  I does heat very well though.  There is a deflector/air dam at the top, that forces the air to go around the bottom of the muffler, and then out the 2" holes on top.  I guess that's why we call them experimentals.   (with emphasis on the last part of the word)  :lmao:JImChuk

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Posted (edited)

Was looking over the plane and noticed a screw up. If I put any sort of seat cushion in this bird My knee would be hitting the throttle. Came up with a solution doesn't look as nice but functions better.  Eliminate 2 switches that were just spares  and move it to the panel. Now the only issue is my throttle cable is two short so if anybody has one laying around let me know.  Would like about 14 inches, Or I have this other type, it has no push button. Never used this type what are you thoughts Better worse. Thanks Enjoy the before and after pictures.

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Edited by TJay

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Posted

I've always used the friction lock style throttle instead of the Vernier. Happy with it and wouldn't want to change.

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Posted (edited)

I've always used the friction lock style throttle instead of the Vernier. Happy with it and wouldn't want to change.

TJay,  I guess it all depends on how touchy your Jab engine is with rpms - I like the button type with Vernier - I twisted a lot on throttles for constant speed props.   EDMO

Edited by EDMO

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