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04-Feb-2009
Catégorie: Finishing : Landing gear

First thing in the afternoon is to tidy up and rearrange the workshop. I could have done it earlier and so I wouldn't have had to redo the levelling and centerline drawing.
I fact I took the vetical part of the engine hoist which allowed me to push the engine below the fuselage and center the fuselage in the workshop. This will allow to align the gear leg fairings.



The fairing is put back on leg, and the alignement procedure begins. First I mark three positions on the leading edge of the fairing (the blue adhesive). Using a plumb bob the position are marked on the floor and reported on a line perpendicular to the fuse centerline (the red dots).



The positions are drawn on a particle board that is placed at the back of the fuselage. Some strings will be used between the position in the back and the one on the fairing.



Here the string, the idea being to center the trailing edge of the fairing between the to strings. The small plastic tubing helps being a bit more precise by sliding it from the aft towards the fairing.
To be noted that my upper mark was not quite right as the step was interfering with the string.







Here the aft part of the intersection fairing. The fit is quite good for those parts I bought from Fairings-Etc. The intersection fairings still have to be cut before being epoxied to the wheel fairing.
I still have to install the upper intersection fairing before working on the other side.




Working time on this subpart
Today :  4h (Total : 40h)

Lectures (2247)
27-Jan-2009
Catégorie: Finishing : Landing gear

Before drilling, the fairings have to be adjusted in all dimensions. First thing is to draw a fuselage center reference line. Two plumb bobs, a laser beam and some adhesive tape and I'm done. I did also draw two perpendiculal lines near the wheels.



Then the two fairing halves are installed. Some fine adustement is needed for the tyre en gearleg hole.
The picture shows that the fairing is not perpendicular to the ground but slightly canted and aligned with the tyre, this is due to the fact that the wheels barely touch the ground and the wheel is in the flight position.



With both fairings installed begins the alignment procedure. Both fairings need to be parrallel ans equidistant to the centerline, they must also be centerd on the tyre.



And at last, the fairings are drilled. The position of the brackets is marked on the fairings as these have to reinforced, the thickness being on the low side at these sposts.
I also mrake the cut line for the tyre opening.




Working time on this subpart
Today :  3h (Total : 36h)

Lectures (2234)
26-Jan-2009
Catégorie: Finishing : Landing gear

I begin installing the main x
wheel fairings. First task is to draw a centerline on the top of the fairing. Not as easy as expected, some measuting and eyeballing ot get it right.



Then the brackets are installed and the brake line removed.



First the opening for the for the tyre is increased, then the fairing has to be cut for the gear leg.
Here a picture after the first cut, some more to go. The champagne box on the left is exactly the correct height to support the aft part of the fairing during the adjustment.



Here the right side, before beginning the drilling I have to align the fairing in all the dimensions.
On the picture is also the Chrismas lightning I use to light the interior of the fairing so as to see the brackets and the holes.




Working time on this subpart
Today :  2h (Total : 33h)

Lectures (2124)
23-Jan-2009
Catégorie: Finishing : Landing gear

After having riveted the piano hinge on the gear leg fairing, I installed it.
The hose clamp is holding the fairing and also the piano hinge pin.



Then I installed the nutplates on the main gear fairings, a lot of drilling, countersinking, deburring and riveting.




Working time on this subpart
Today :  2h (Total : 31h)

Lectures (2175)
22-Jan-2009
Catégorie: Finishing : Landing gear

This afternoon I worked again on the nosewheel fairing. First I drilled the brackets for the nutplates, then I countersunk, deburred and sanded them.



Then I drilled the fairing's hoels to size. I had some problems countersinking the holes on the side as there is not much thickness. I'll do some small repairs when finishing the fiberglass work and also use coutersunk rivets to spread the loads.



Then I draw the cutting lines for the opening for the tyre. Still a lot to cut off, but it will be done another time so as not to put too much dust in the workshop (weather makes it impossible to do the cutting outside).



Then I begin the installation of the gear leg fairing. A lot of small adjustments to make to get a good result. I still have to install the piano hinge.




Working time on this subpart
Today :  3h (Total : 29h)

Lectures (2137)

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