Almost made a big mistake tonight. Read about it in the picture comments.
|Skin is good|
|Attaching the trailing edge|
|On one side the edge is flush with the skin on the other it is showing about 1mm, measuring skin hole to edge distance and A-1011 hole to edge distance|
|And measured again|
|marking and taking pictures with the intent to ask on VAF forum...|
|Calculating and the numbers do not make sense! Opposite result compared to my logic... this cannot be, time to take a closer look at the parts|
|And I finally saw the problem, I had put the clecos on one Aileron thru the large lightening holes instead of the rivet holes!|
|Final drilling, I let the drill find the correct angle on itself and made sure not to try and make it 90 degrees towards the skin|
|Thens its time to take everything apart again for trimming, deburring, dimpling, countersinking and priming|
at 10:32 PM
It is not foolproof regarding which aileron skin goes where so I decided to do a trial fit. Good thing because I got it wrong on the first try!
|Yes, I´m using a screw driver to final drill|
|Here I¨m getting skeptical, it does not fit the same way on the right and left aileron|
|Holes are not close to lining up!|
|The secret to getting it right is that in addition to the remarks in the plan: realise that the hole spacing is smaller at the trailing edge|
at 12:05 PM
Riveted some of the parts together. Must be careful to leave the correct holes unriveted. Then I spent what felt like a really long time, mounting the counterbalance to the front ribs, only eight screws in total but I only had room to make 1/6 of a lap on each take with the tools.
|Dangerous countersinking! Great result tonight but lets stay away from this practice|
This post is for both yesterdays and tonight's work. In total I spent 1.7 hours match drilling the weight to the aileron ribs and skin. If I were to do it again it would probably take 0.3-0.4 hours.
|Drilling the first two holes described in the first related step|
|Decided like others that there is no reason not to drill the rest of the holes at this time|
|Not to difficult but the drill bit needs to be sharp to handle the steel without slipping|
|This hole was just drilled enough to make a mark, I completed it on the drill press|
|#27 final drilling|
at 10:49 PM