Pieter Visser's X350

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Pieter001
Posts: 217
Joined: Wed Jul 03, 2013 7:03 pm
Closest Airfield: NZWN
Location: Wellington NZ

Re: Pieter Visser

Post by Pieter001 » Wed May 28, 2014 10:08 pm

"Symmetry" is a one of a kind indeed and the builder, Cory Bird, is seriously skilled in composites. I still don't quite get how he got the cowling done without any fasteners at all!! :?:

I have a couple of ideas on what I'd like to do and I trust I'll have the skill to realise this. Time will tell, but I'm looking forward to it :D

Pieter001
Posts: 217
Joined: Wed Jul 03, 2013 7:03 pm
Closest Airfield: NZWN
Location: Wellington NZ

Re: Pieter Visser

Post by Pieter001 » Sun Jun 01, 2014 8:53 pm

This weekend I did not get much time to build :(

My wife and I attended an AMT Composite course, which was a lot of fun and one gets insight into many of the details around the glass fabric and weave pattern and correct choice for an application. The vacuum side of this I found most interesting, so a vacuum pump is on my wish list :wink:

What I did do on my Whisper was basically preparing of the leading edge for bonding to the trailing edge. I cut and sanded the shear web roving areas and prepared the foam cradle for the bonding. Tomorrow after work, this will be exactly what I'll do, bonding :D

At AMT I purchased all the 160gr glass I needed, estimated 20m should work: 6m for the horsontal stab, 14m for the wings. Thinking about it now, likely need more for the wings as there is the leading and trailing edge... Will see once I get there and update the material list accordingly.

I also received a couple of Air Craft Spruce boxes with goodies on Friday, which I still need to check the inventory for... This was essentially all the nuts and bolts for the Whisper and I also got the piano hinges for all the parts, so I can continue working. The more expensive hardware I still have to order, but that will have to wait a while.
Attachments
20140601_194146.jpg
All ready for micro
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20140601_194132.jpg
Left ends of leading edge for bonding
20140601_194132.jpg (187.12 KiB) Viewed 2961 times

Pieter001
Posts: 217
Joined: Wed Jul 03, 2013 7:03 pm
Closest Airfield: NZWN
Location: Wellington NZ

Re: Pieter Visser

Post by Pieter001 » Tue Jun 03, 2014 2:34 pm

Last night I glued the Hstab leading edge to the shear web with micro. One needs to take the time to get the foam cradles setup nicely and then the rest is pretty simple :D

Tonight I'll start cutting UD glass for rovings to complete the shear web caps.
20140602_174747.jpg
Foam setup to apply micro
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20140602_191709.jpg
Package tape and weights used while curing
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20140602_191648.jpg
Tips not sanded away for web cap
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whisper
Site Admin
Posts: 485
Joined: Mon Jul 19, 2004 2:26 pm
Location: Port Elizabeth
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Re: Pieter Visser

Post by whisper » Tue Jun 03, 2014 7:35 pm

looks like the project has moved into the house :!: Thats the sign of a serious builder and a tolerant wife :D

Pieter001
Posts: 217
Joined: Wed Jul 03, 2013 7:03 pm
Closest Airfield: NZWN
Location: Wellington NZ

Re: Pieter Visser

Post by Pieter001 » Wed Jun 04, 2014 7:42 am

Jip, the dining room table to be exact :)

My wife is the best, honestly, I'm blessed. I told her it is all about safety, I need a good work space :wink:

Pieter001
Posts: 217
Joined: Wed Jul 03, 2013 7:03 pm
Closest Airfield: NZWN
Location: Wellington NZ

Re: Pieter Visser

Post by Pieter001 » Wed Jun 04, 2014 7:53 am

Last night I did not do much on the Hstab, as I had to spend a bit of time on one of my other passions, dirt biking. Erzberg rodeo was run on Sunday and on Red Bull TV one can watch the entire event, so 4hrs was spend on this :D

When I got home I did check to see if the micro had set where the leading edge was bonded to the shear web and it was good.

I held it up to the light to see if there were any gaps between the shear web and the leading edge that resin could run through and found a couple of areas where this would indeed happen! So I decided to resolve this issue...

Made a flox+micro mix, thick so that it could not run. I then put this mix into a plastic sandwich bag, Ziploc type (learnt this trick at the AMT composite course :D). If you then cut off a little section of one corner, you have a "pig bag", which is great for putting down a bead of resin.

Used this method to put a sealing bead or resin down in the trough.
Attachments
20140603_191948.jpg
pig bag for putting a bead of resin down
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20140603_192028.jpg
micro + flox sealing bead
20140603_192028.jpg (152.83 KiB) Viewed 2939 times

Pieter001
Posts: 217
Joined: Wed Jul 03, 2013 7:03 pm
Closest Airfield: NZWN
Location: Wellington NZ

Re: Pieter Visser

Post by Pieter001 » Thu Jun 05, 2014 8:16 am

Last night when I wanted to cut the UD for rovings to use on the shear web caps, I found that my UD is 14cm too short :(

Will go past AMT this afternoon to buy the required UD so I can continue the work.
Last edited by Pieter001 on Tue Jun 10, 2014 7:10 am, edited 1 time in total.

Pieter001
Posts: 217
Joined: Wed Jul 03, 2013 7:03 pm
Closest Airfield: NZWN
Location: Wellington NZ

Re: Pieter Visser

Post by Pieter001 » Mon Jun 09, 2014 10:21 pm

The UD to buy from AMT is part number C311: 500gr UD 13k warp. Not too badly priced either.

For the wing rovings I think I may opt to buy a spindle of 24k rovings. Would be nice to know the wings are super strong! Maybe a aramid tow or two...

I did the cutting of the UD and thought that all this will never fit in the trough, but I was suprised to see that I got almost everything in bar 2 short sections into the trough just fine. Don't know how Russell calculated to get the correct amount of cloth to cut, but if you follow the recipe, it works out near perfect! I was amazed!! :o

As it turns out, my cap seems slightly elevated and I may need to sand it down a little before I cover it with glass. When I do the other side I'll take a good look at this and make sure I stay flush with the shear web ;)
Attachments
20140609_175518.jpg
Roving
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20140609_231412.jpg
Rovings and resin in place
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20140609_215336.jpg
Done with peel ply
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Pieter001
Posts: 217
Joined: Wed Jul 03, 2013 7:03 pm
Closest Airfield: NZWN
Location: Wellington NZ

Re: Pieter Visser

Post by Pieter001 » Mon Jun 16, 2014 8:26 pm

The long weekend was fairly productive ;)

Managed to put the H-stab bolt in place with custom spacers to assist with the angle. I made a paper form the width of the big washer at the bottom and then put a flox mix in there and had it exo... Jip, exotherm causes bubbles and the mix weights much less and is still strong. I'll wrap a couple of UD tows around the outer rim for added strength.

Also managed to glue in the Vstab rear spar and did the 280gr layers to hold in place, as well as the 280gr for the tail wheel spring.

Also managed to do the last shear web cap on the Hstab.

Also shaped the Hstab pins and the washers I'll use at the back to ensure that they don't touch the edges of the spar.

So now I look forward to preparing the Hstab for the final sheeting :D :D

20140615_160422.jpg
Alignment is now much better
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20140615_151241_small.jpg
Hstab pins shaped and washer shaped too
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Attachments
20140616_151657.jpg
Last Hstab shear web cap done
20140616_151657.jpg (211.93 KiB) Viewed 2883 times
Last edited by Pieter001 on Fri Feb 09, 2018 6:14 am, edited 1 time in total.

Pieter001
Posts: 217
Joined: Wed Jul 03, 2013 7:03 pm
Closest Airfield: NZWN
Location: Wellington NZ

Re: Pieter Visser

Post by Pieter001 » Mon Jun 16, 2014 8:42 pm

Here is the exo-flox washers.

The top one is slightly larger than the 12mm small washer I'll use at the top and the bottom one is basically the same size as the big washer to be used at the bottom. The bottom one I've also curved just a little to conform better to the fuss shape.
Attachments
20140615_151317.jpg
Exo-flox angled washer
20140615_151317.jpg (204.6 KiB) Viewed 2883 times

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