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Old 07-06-2017, 12:07 PM   #1
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Default Delta Wing Build

Its finally coming!!!! My Steen Wing Kit is ready. I guess it will take a few weeks to get here (Sydney) so I thought I would take the time to get a build log ready.

Background:
I started building with the upper wing centre section of the Delta variant - the three piece upper wing. I have completed as far as I will go on the centre section until I can mount it and place the sway and stagger wires correctly and at that point will make the holes in the leading edge and the outside rear ribs.

I have completed the centre section fuel tank and it is now ready for welding. Need to get someone to do that. I dont feel like blowing a hole in the aluminium which I have not welded before.

The wing kit is 9 months later than I was told it would be when I ordered so over the last few months I have been scrounging things to do, given I don't have a wing kit and I intend to buy a fuse.

I won't waste your time with too many picks of the lower wings which I will start with and will focus on the upper wings when I get to them.

I did start on the upper wing butt ribs which are different to the rest as they have a integral compression rib in them.

The pic below shows the (from bottom to top)
1. The second butt rib being constructed. What I did was use the upper wing rib jig but has to remove some of the pins as the spar opening is 1 and 1/4" in this rib compared to the others at 1" due Ply doubler (which is only 1/8" thick on the top wing). Note in this picture the pieces are just laid on not glued and the middle 1" thick compression rib is not inserted. It just runs from front spar to rear spar in the middle of the rib.
2. First complete Butt Rib
3. Normal Rib for upper wing.


IMG_1072.jpg  
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Old 07-06-2017, 12:11 PM   #2
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Default Nose Rib

I thought I would also just add a picture of the nose rib area. I had to devise this method because if you look at the plans it is not clear how to get the nose rib set up. I cheated in that I used a standard 1/4" nose rib, but had to fill it out to 1/2" to match the rest of the rib. Both of these butt ribs are 1/2".

Here is what I did.
First picture is the rib without the laminate on so you can see how I filled out the 1/4 gap. Second pic is what it looks like completed and sheeted.


IMG_1073.jpg   IMG_1074.jpg  
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Old 07-06-2017, 02:44 PM   #3
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I don't know if this is of any help? It's not of the delta wing.

I built my Skybolt ribs and wings from the Steen kit

This gets you to the thread posts.
http://www.biplaneforum.com/showthre...t=9515&page=23
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Old 07-06-2017, 08:08 PM   #4
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Eric - I have read it and re-read it many times. It's a great record to learn from. Thanks for doing it.
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Old 07-11-2017, 02:10 AM   #5
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Not to jack this thread but has anybody used this type of compression rib in a standard wing instead of the 3/4" struts?
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Old 07-11-2017, 08:32 AM   #6
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Quote:
Originally Posted by AQAdude View Post
Not to jack this thread but has anybody used this type of compression rib in a standard wing instead of the 3/4" struts?
I haven't ever seen it but it sounds reasonable. I have attached a picture with the compression timber in the rib. This is then sheeted in 1/16th on either side.
IMG_1075.jpg  
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Old 08-12-2017, 12:49 AM   #7
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Still waiting. Kit is finished and paid for just waiting on freight now. Was due for pick up this week but TNT got their measurements and the spar crate was 5" too long of their vehicle.
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Old 08-21-2017, 05:51 AM   #8
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Two great big boxes of fun arrived today..... let the unpacking and games begin
IMG_1211.JPG.jpg   IMG_1212.JPG.jpg  
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Old 08-21-2017, 05:51 AM   #9
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Yikes .... sideways. Sorry about that
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Old 08-21-2017, 02:13 PM   #10
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Congratulations on finally receiving your wood! I know you've been waiting quite a while. Keep us fed with pictures if able
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Old 08-22-2017, 10:50 AM   #11
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Well done Cam! I actually saw these boxes when I visited Steen in July! Glad you got them...expect big results soon!
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Old 08-23-2017, 09:46 PM   #12
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Question: Is there any reason why it would not make sense to fit/drill the butt plates and fittings, the internal flying wire hole and plates, the I-strut bolts and the drag anti-drag wire holes prior to mounting the spars to the racks?

I think this is the best way to do it, but I see on most build sites that they are drilled whilst in the racks. I just figure I can be more accurate and use the drill press without them in the racks. I figure I will clamp front and rear spars together, mark all locations and centrelines, trammel points etc then drill.

Thoughts?
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Old 08-23-2017, 09:51 PM   #13
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Default and so it begins.....

Opening the crates and doing the inventory is so much fun. Can I say the quality of the work is sensational. Here is a few shots of the lower spars. These are the laminated spars and as you can see they job they have done is fantastic.
IMG_1221.jpg   IMG_1222.jpg   IMG_1223.jpg  

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Old 08-24-2017, 02:56 AM   #14
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Why are you building the Delta wing?
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Old 08-24-2017, 03:57 AM   #15
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Quote:
Originally Posted by camwebb777 View Post
Opening the crates and doing the inventory is so much fun. Can I say the quality of the work is sensational. Here is a few shots of the lower spars. These are the laminated spars and as you can see they job they have done is fantastic.
I know what you mean. I had the same experience with the quality of the milling from Steen.
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Old 08-24-2017, 05:19 AM   #16
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Default Why Delta?

Quote:
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Why are you building the Delta wing?
Dennis,

1. Increased Gross Weight
2. More X-Country Fuel - Australia is a big place with nothing in between
3. Smaller wing lengths as I am building in a small single garage that would not fit the one piece top wing

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Old 09-06-2017, 10:03 AM   #17
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First holes drilled. These are the lower wing butt ends. Next up is the iStrut holes. Nerve racking stuff drilling these things. ImageUploadedByBiplane Forum1504692223.049868.jpg
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Old 09-06-2017, 11:12 AM   #18
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Quote:
Originally Posted by camwebb777 View Post
First holes drilled. These are the lower wing butt ends. Next up is the iStrut holes. Nerve racking stuff drilling these things. Attachment 28184
I know!
For me what it felt like is....First scary and then a feeling of "well, this is it. I am committed to building wings now" No turning back. I have just turned those long pieces of spruce into spars.

Congratulations.
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Old 09-07-2017, 01:22 AM   #19
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On photo #13
I am not liking the spar piece on the second one from the right. It appears that it is closed or wider rings than the others. Is that good or bad?
Just wonder drilling through them the vertical where the I wing struts get attached would it cause the drill bit to wonder off line?
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Old 09-07-2017, 01:28 AM   #20
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I've had good success drilling that vertical hole by using a brad point drill. They don't tend to wander like a typical drill.
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Old 09-07-2017, 03:27 AM   #21
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Agree.

A brad point drill, I found keeps good direction, no wandering and makes for a good round clean hole.
I backed up the spar with sacrificial sheet of wood, that I would not splinter the spar while worming through the opposite end.

Although all my spar drilling was done on the drill press (apart from the drag wire holes)
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Old 09-07-2017, 06:02 AM   #22
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Quote:
Originally Posted by Neil View Post
I've had good success drilling that vertical hole by using a brad point drill. They don't tend to wander like a typical drill.

Neil agree brad point is ideal. Instead I used an awl with the drill in a press. It worked very well but if I was buying drill bits to do it, brad point is best. Will get a picture up of how i am drilling on the next one.
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Old 09-07-2017, 11:35 AM   #23
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IStrut holes on the lower wing spars done!! Will do the uppers after I have built the two lower wings.

They say copying is the greatest form of flattery. Thank you for the method Eric (Taff)ImageUploadedByBiplane Forum1504784109.199316.jpg
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Old 09-07-2017, 11:55 AM   #24
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Old 09-11-2017, 03:08 AM   #25
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Did my first CNC job this week. For the spar centre sections I made the brackets by hand and had them welded.

For the butt fittings (and the drag/anti-drag wire blocks) I decided to draw them in Sketch Up and have someone cut them.

Top job. Should have done that sooner. You live and learn.

The brackets are 4130 and the blocks titanium.

ImageUploadedByBiplane Forum1505099296.890211.jpg


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