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Thread: Yet another Javro build

  1. #1

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    Yet another Javro build

    Here we go.... actually started the build on this one back in fall. I will itroduce myself at a later date. I will post a pic here and there and ask a few ? Along the way. Ill give my specific about my plane later also. . Just using this as my starting point since im sitting a a nice chair here at Sams waiting on my wife. I know a few on here and have always liked this place for info . Well , i see her coming so thats it for now. Maybe when i get home later.

  2. #2

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    Well, got sidetracked since last post with a little tornado Friday night, everyone save. One churchmember lost a tractor shop but all good. What i have decided to build is a wide body javron with square wings and big flaps . I have many builds under my belt, maybe 20 from 18s to bearhawks. Everytime say going to do something different. Lot of times hands tied due to being certified. On this one I decided to go as light as possible,,,but not so far as to make it unusable. Thats part of reason for the wide body. I think when it’s sold it would be a plus. Front end will be an O370 with light flywheel, no pulley, light intake , electric mags , catto etc etc. i am useing as much carbon ans fabric in as many areas as possible. I weigh EVERY thing on a gram scale and document. I hate when people throw numbers around and you are reading something for info and just know its not the truth. Full carbon cowl, interior, floorboards, wing parts etc. i will post weight savings along the way. Actually i will play catchup a little at this point in the build over next couple days. That way i will be posting current. Some things i gain a little like extended gear and extended kellar flapps , but i thing are good sacrifices. I have recieved a lot of good things from this sight without usually ever asking a question, just surfing it. I know some of you and greatly respect some. When i need to talk weight, i know Bill Rusk is the man. When my shop needs to know a part question there’s Steve Pierce and so on and so on. So, till next post ,without getting extremely technical here is my first reach out. Long wing, O370, hopefully a little under the 1100 lb mark. What is yalls fav or best choice for catto. Big tires so no clearance problem. I want good all around but lean a quite bit more to take of performance. I know cubs dont go fast but one build i did in the past had 200 hp but would only cruise about 85. I dont want that. I heard some sim configurations being able to cross country at around 110 to 115 range. That would be awesome. Later and God speed

  3. #3

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    Robbie,
    Our wide body JAVRON. We have a Catto 85x45 on a 200 hp O370 with 31s. At 2550 rpms (7000 msl) we see 117 mph true @ 11 gal per hr on a long wing. Is this Robbie from Aero Tech? Good luck.
    Shep….
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  4. #4
    Mauleguy's Avatar
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    I did not weigh everything but I care about weight. My Javron wide body with 35" abw, 3" extended, 0-360, 84" 1p235 prop pitched to 43, oratex fabric, big keller flaps with big wing (90" ailerons 110" flaps), 18 gallon tanks, composite floor boards, .020 metal interior with extended baggage, electrical system with 8 amp alternator and earth X battery weighed 1189, .060 flip up side window, .090 skylight and sliders, oregon aero interior seats. It cruised at 105 at 2500, If I built that airplane again I would swap the lengths of ailerons and flaps. I had a basic steam type gage panel, gps, becker com and transponder. It was a very usable airplane.

    I don't think you can get to 1100 on 35" tires but I could see doing it with 31" tires.
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  5. #5

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    Click image for larger version. 

Name:	908D770C-5011-4D75-B524-3126DEBEA680.jpg 
Views:	93 
Size:	69.1 KB 
ID:	46483Went with my own fabric headliner. Sewn and finished out with secondary color . Best time to go ahead and paint and get ot out of the way. Saved some weight here.

  6. #6

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Name:	A633ADF9-E3A4-4E94-9880-17CCB8D5DE81.jpg 
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Size:	32.8 KB 
ID:	46484Carbon cowling. Saved i think 6 lbs, will have to look it up . I will post actual numbers later.
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  7. #7

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Name:	D09A3691-CF5C-4FC0-9A01-306E6237E223.jpg 
Views:	49 
Size:	67.1 KB 
ID:	46485Chose carbon for interior. Could have j3 styled it but to labor intensive for now. I think my savings over bare alum was mawbe 2/3 of aluminum. I did not have an aluminum to compare but i have sq foot versus sq ft measurements and how many sq feet was installed.
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  8. #8

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    How you been. You still got your super cub ?

  9. #9
    RaisedByWolves's Avatar
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    Quote Originally Posted by Robbie S View Post
    Click image for larger version. 

Name:	908D770C-5011-4D75-B524-3126DEBEA680.jpg 
Views:	93 
Size:	69.1 KB 
ID:	46483Went with my own fabric headliner. Sewn and finished out with secondary color . Best time to go ahead and paint and get ot out of the way. Saved some weight here.
    Looks
    Great, have any more pics from the other side?


    Sent from my iPhone using Tapatalk

  10. #10

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    Attachment 46511No problem. What i did was lay out all the geometry on flat babric with lines where frame tubes are to be glued or attached. With the exception of the rear triangle that is covered by itself. Then me and my wife, using a good sewing thread and machine, sewed 4” heavy ceconite tape on topsides. While attaching you have to attach the center on the bar , making sure you glue it straight. This in a line you see. There is a weird tricky corner at rear triange you just have to fold a tape and glue in . On inside a sheered some .016 by 1/4 wide aluminum and glued on the stitch to cover it and straighten everything up before taping . Then on top where it is tension pulling at the seeed seam,on each side i put a bead of 3m silicon type adhesive on each side fo tube in the seam so it would relief it a bit when flying with doors open and it viberating.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	5540870B-4DEC-40F9-B12D-CDC20677781F.jpg 
Views:	32 
Size:	48.3 KB 
ID:	46512  
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