Jabiru J400 Builder Log

Jabiru aircraft builder - building a J400
Jabiru aircraft builder - building a J400

    Home
    Photo gallery
    Builder log 8-06
    Builder log 7-06
    Builder log 6-06
    Builder log 5-06
    Builder log 4-06
    Builder log 3-06
    Builder log 2-06
    Builder log 1-06
    Builder log 12-05
    Builder log 11-05
    Builder log 10-05
    Builder log 9-05
    Work hrs log
    Expense record
    About the builder
    Useful tips
    Research topics
    Actual performance
    Links

 

 

 

 

 

 

Jabiru J400 Builder Log - January 2006

1/31/2006 4:45pm-10:13pm
1) pulled the aileron cables and the nav/strobe light electrical cables through the wings... i though it was going to be tougher but turns out that it wasn't all that bad
2) cut the aileron cable holes at the wing tip and pulled the cables through... attached cables to aileron horns and then drilled and installed aileron brackets into place using bolts
3) installed throttle idle stoppers according to the photos...since there's no instructions i had to guesstimate here on what parts to use...
4) so i reworked the rudder cable anchor at the tail...it turns out that there were retaining nuts for the rudder cable on the parts card that was not mentioned on the manual...much better idea and easier to work with... now it's easy to tighten the bolts

1/28/2006 5:47pm-10:16pm
1) after a lot of lazying around I installed the fuel fitting to the firewall and attached the fuel line between the firewall and fuel pump on the engine... didn't attach the cabin side of the fitting because the engine instrument I purchased came with fuel flow and fuel pressure meters...i think these go on that side
2) drilled and siliconed the belly strobe with taxi light under the pilot side... once the silicone dries I will epoxy the nuts on the inside to make sure it stays firmly attached

1/26/2006 5:11pm-10:41pm
1) checked the patched glasswork in the header tank area...looks good and it's ready to refit the header tank correctly
2) redrilled all the header tank fitting holes including the quick drain... it seems that the header tank now fits properly and the fitting does not rub up against the brake pushrod... the grommets were reinserted into the the center console.
3) installed all fuel lines through the sides of the fuselage all the way to the fuel pump including through the header tank...
4) installed the quick drain fittings into the wings... then flocked the quick drain covers into place on the wing and the belly cover for the header tank... used 3 oz of aeropoxy...current temp is 63F

1/24/2006 5:21pm-10:14pm
1) removed the masking tape off of the front wheel spat
2) attached all the fittings to the wing tanks..such as the finger filters... used liquid thread sealer from loctite...also removed the teflon from header tank fittings and used the loctite thread sealer on them
3) re-fitted the header tank into the passenger seat...it seems that the header tank was fitted to close to the center console and so the fittings went through the console and rubbed up against the hand break pushrod...therefore the tank had to be refitted...also, since the three fitting holes in the center console were too big from a previous error, i reglassed those holes and will redo the holes with grommets when the glass dries... used aeropoxy...center console holes have about 6 layers of wicks glass S type...

1/20/06 2:22pm-11:47pm
1) took a look at the HID bracket that was glassed... looks fine.. put the HID lamp tot he bracket and it's starting to look real good...some sanding to take the edges of and it should be quite nice
2) made some cuts on the HID bracket in order to clear the engine and the exhaust pipes... also drilled and used 6-1.5" stainless steel screws with washers to hold HID in bracket... no rubber gasket was used but probably will need to find one... i've read HIDs aren't sensitive to vibration because they don't have filaments...either way, i have time to find some sort of rubber for a gasket... looks sharp... also made a heat shield for the rear side of the HID... not sure if it needs it but since the exhaust pipe is about one inch away, i've decided to make one... the HID is actually in a place where it'll get lots of air stream past it since it's nearly under one of the air ducts... i think that's it for the HID
3) finished out the front wheel spat by attaching the top part to the bottom with aeropoxy flox... made 1.5 oz amount...current temp is 60F

1/18/2005 7:20pm-12:20pm
1) removed the peel-ply from the fiberglass plate made for the hid bracket..measured the plate... 14 layers turned out to be about 1/4 inch thick plate using wicks glass and aeropoxy
2) marked the pattern for the HID bracket on the glass plate and cut the patters out of it... trimmed them..and sanded...
3) glassed the HID bracket to the HID housing on the cowl with a mixture of 1.5oz aeropoxy... current temp about 60F

1/15/2006 7:00pm-10:36pm
1) removed the peel-cloth off of my HID bracket glass plate... it seems the plate with 8 layers was less than 1/8 inch and i thought i'd fatten it up with 6 more layers... so i glassed the 6 more layers with another 3oz of aeropoxy pr2032...getting the hang of this glassing thing..
2) bought a 250w heat lamp to heat up the area i'm working in quicker... not sure its what it's cracked up to be... will probably return it and get another type of heater
3) riveted the throttle bracket to the main console after fitting both ends properly... cut the throttle stop as indicated and then cut and flocked with aeropoxy.... i'm trying to save the LC3600 for structural applications since i don't have much left... not sure that i will need any though

   

1/13/2006 5:06pm-11:11pm
1) cut up 8 layers of glass to make the HID brackets that will hold the actual HID light... used Aeropoxy for the epoxy...took a 3 oz and 1.5 mixture to do all layers... peel-clothed it and set some books on it to cure flat
2) got the new rivets in the mail... the 5/32 rivets worked great on the trim tabs on the elevator with the washers... the 1/8 are definitely too small
3) threaded the throtle cable through the center console
4) bolted the front rudder cable mount into place
5) attached throttle cable to throttle lever

1/11/2006 5:50pm-10:12pm
1) bolted the rudder cable at the tail in order to find the correct position to bolt at the front...however, i decided to put in the steering link assembly before doing the final bolting at the front
2) drilled and fitted the steering link assembly...since there's practicly no instructions, i had to refer to the photos provided...however, i'm not sure if i should have routed the links on the outside of the pedals instead of the inside... the clearance between the steering link and the nose wheel rear bars is practicly nil.. in the picture it looks like they are using an old version of the nosegear assembly... it seems to work... but doesn't seem to travel far enough... will have to play with it the next time i'm here so that i can attach the front rudder cable

1/10/2006 4:30pm-10:21pm
1) started triming the HID light enclosure on the cowl... it seems that the dimmension came out well and the light should fit about where expected... the many layers of fiberglass resulted in nearly a 1/4 inch shell (thinner in certain parts) which is way thicker than needed but since it was my first official custom part, it wasn't bad at all... now i have an idea of how many layers correlate to thickness more or less... it looks nice and that's the bottom line at this point... tried the trimmed cowl on and it may need some more trimming for engine clearance
2) trimmed the rubber off of the rudder pedals were necessary...reattached pedals to fuselage and attached rudder cable to pedals

1/9/2006 6:09pm-10:15pm
1) rubberized the rudder pedals one last time... it's to make it smooth but it's more a functional role than an aesthetic one...i think it looks fine
2) removed my HID light and the cone shaped form that i used to glass over... the aluminum didn't stick to the glass but it didn't leave a very smooth surface anyway...so it will need some smoothing.. but it looks like it's the right shape and size for the HID light.. will have to trim it and finish off with the remaining construction... i will need to order more glass however since i used up nearly the whole yard for the cone so far...
3) trimmed the flap handle assembly so that the handle locks into each of the 3 positions securely...wouldn't want to be on final with 3rd notch of flaps and have the handle come off its notch... wouldn't be pretty
4) drilled the firewall and fit the throttle cable through

1/7/2006 7:40pm-1:34pm
1) got the HID light today... light seems a bit bigger than i expected and so it'll be trickier to fit it in the cowl without rubbing up against the engine exhaust... so i found a place on the passenger side bottom cowl... see pictures to see how i did it.. essentially it took a lot of layers ...not sure how many i need nor do i know if it's enough... but I used nearly a yard of fiberglass on it.. current temp is 64F used 3 batches of 3oz Aeropoxy (didn't want to use the LC3600 since i only have a bit left)...also...the glass was not AF303...if i'm going to guess there may be about 10 layers of fiberglass on this cone for the hid..hope it comes out nice!

1/6/2006 9:13pm-12:52pm
1) tricia is in the shop today... so i put her to work.. she painted the rudder pedals with this plastic dip thing... this rubber coating should be quite nice on the feet
2) didn't like where the carb muff was so i moved it back on the muffler...had to cut the rear side of it so that the exhaust pipes are partially cut into the muff
3) finished out the hand brake control and the trim... they look good

1/5/2006 6:08pm-10:10pm
1) trimmed and sanded the cowl NACA duct and air dam for the oil cooler...tried the bottom cowl in place and the oil cooler air dam seems to be well aligned with oil cooler
2) installed scat hose from naca duct to air box... also installed the cabin heater air box and riveted to firewall... firewall metal is tough to cut but a dremel works... siliconed the cabin heat air box on the cabin side...
3) plugged the spark plugs cables through the air ram ducts and plugged them into the plugs... assembled the air ram ducts into place...i think i'll have to remove the air ram ducts one last time to remove the oil from the cylinders before running engine... but i think it's good for now

1/3/2005 3:40PM-11:48pm
1) fitted the ram air air pipes that bleed air to the coils... i had to cut them to shape and the air ram duct to fit through.... once fitted, 5 minute epoxied them in place... since there's no instructions, i have no idea if this is good enough or if it needs LC3600...it looks strong enough though
2) installed the muffler.. at least temporarily.. no spring was attached.. not sure how far back it should go...
3) installed the cabin heat muff and the carb heat muff on the muffler... of course it's a new style muffler and so neither manual is correct on where to position either muff... this cabin heat kit is actually provided/designed by USjabiru ... anyway... carb heat muff is under the muffler and i'm not so sure that's a good idea.. maybe i should swap positions... also... carb muff slots for clamp don't work because it's a new muffler.. had to elongate the slots on the carb heat muff.. found out that the dremel bits that work well on aluminum don't seem to work well on the carb muff which i think is some sort of steel or such.. and vice versa...

1/2/2006 7:45pm-9:50pm
1) removed the cowl and glassed/flocked the NACA scoop, oil cooler air dam, and one of the tinnerman holes on the cowl that was slightly damaged on a previous cowl removal (cowl sprung abround hanging on one tinnerman and screw)... used one batch of 2oz epoxy and 0.8 batch to finish up

1/1/2006 4:18pm-11:31pm
1) wow... 2006 already?... so much for completion by December 05... work really bogged me down the last two months so i didn't get to work as much as the first two months... so the new target is sometime 2/2006...hmmm
2) removed the lower cowl and drilled and riveted the correct location for the oil cooler bracket..turns out the back rear previously made drill is the correct location for the front hole on the bracket...had to redo the oil drain safety wire and drill two holes through the bracket for it
3) drilled the oil cooler holes through the brackets and attached cooler using bolts and fireproof nuts provided (tinnerman washers and such were specified in the manual however)... used the bundy tube and inserted tube through the grommets holding oil cooler before attaching.. i presume this is what it's for (bundy provided on oil cooler card)..
4) installed both oil filter attachments and installed all oil hoses with clamps
5) 5 minute epoxied the oil cooler air dam into place
6) 5 minute epoxied the NACA duct on the bottom left hand side of the cowl... cut the cowl to the NACA ducts shape...
7) will have to glass and/or flock (LC3600) both NACA and air damn the next time i'm here

 


Questions or comments? Contact me at roger@jabiru-aircraft.com

 Ad Network
Gifts Wedding gifts Jewelry Lingerie Gift baskets