Sunday, November 19, 2017

Right inner wing and canopy finished

Finished riveting the skin on the right inner wing.

Then finished the canopy. Used some 1 and 2 mm rubber sheets and cut out pads to be able to fine trim the canopy glass onto the frame. The handle also works OK, could be smoother, but I think that requires a different design. I also found a small crack that I didn't see when the plastic was on. Just stop drilled it, but have to find out how to fix it properly later.

Tuesday, November 14, 2017

Monday, November 13, 2017

Skinning the inner wing sections

Finally time to skin the inner wing sections. They have to be skinned before mounting the landing gear, or there will be no room to pull lots of the rivets. I also need to get get it on it's feet so I can sit in it and make cool sounds :-)

First I fastened the "Tygon" pitot and static pressure tubes. Just stripped them on to the electric wire lines. I have never heard of Tygon tubing before, so I googled it:

Clear, Phthalate-Free Tubing
Tygon S3™ B-44-3 tubing is specially formulated for transferring a wide variety of beverages including soft drinks, fruit juices, flavored teas and bottled water. In virtually all cases, Tygon S3™ B-44-3 tubing will not affect the taste or odor of products transferred through it, while its excellent non-wetting properties facilitate complete drainage and permit simple flush-cleaning.

The glass-like clarity of Tygon S3™ B-44-3 beverage transfer tubing allows the user to see product flow through it, so visual monitoring of flow is easy. This is particularly helpful in controlling or adjusting flow during processing.

Features And Benefit
  • Clear as glass for easy visual monitoring of flow
  • Lightweight and flexible for easy, quick installation
  • Broad chemical resistance
  • Non-wetting properties allow easy cleaning and complete drainage
  • Contains no BPA or phthalates

Aha, so that makes it good for pitot and static pressure tubing? Lightweight and flexible is good. Chemical resistance is also good I guess. Non-wetting properties is probably very good. Any water condensate will not stick to the walls, and therefore easily drain and evaporate, I guess.

Then I took some last pictures before putting the skin on (already drilled and countersunk)

Then I saw I had forgotten to prime the mating face under the doubler, so primed that and started riveting on the skin.

Wednesday, October 25, 2017

Tuesday, October 24, 2017

Canopy screwed on and fits

It's actually on and fits !!! Sort of almost gave up for a while, but eventually it is there. All holes countersunk and threaded. Only need some riveting and priming, and it is ready to go.

I made 4 small drainage holes at the bottom of the frame. Some water is bound to get into those tubes somehow, and it is better to drain it out at once. Also need some spacers here and there.

Sunday, October 22, 2017

Canopy frame and screws

Some of the screws go into the steel angle inserts in the frame. I also threaded the steel angles, but these stainless MS screws are not really up to quality to handle this. They will bite between the aluminium and steel and it all ends with the head of the screw being twisted off.

Re-drilled and threaded to M4 standard and used some real industry quality M4 screws instead (made of real steel, and with metric shaped threads). Doing this, and all of a sudden the biting problem was gone. Only had umbraco heads avaiable, but will probably change them later.

Sloooowly, but surely this canopy is finally coming together....