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Old 08-22-2015, 07:29 PM   #1
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Default rigging Skybolt wings

I see a lot of discussion of flying wires on another thread and I did not want to interrupt that or piggyback on to it.

But flying and landing wire install and tightening will be very interesting to me in the future.
Not only the wire side of it but also the whole important concept of rigging the Skybolt wings.

Are there any publications or video's by some famous people available that shows the A to Z of this process?
Any and all information will be appreciated.

I hope it is not a "black art" situation that has been sent down from father to son kind of thing.

Pointing me in the right direction will make me feel happier about the building future. Then maybe I can get these wings finished and not worry about it.

Cheers. Eric


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Old 08-23-2015, 02:59 AM   #2
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Since the Skybolt is a large S2A, there's a document called "Rigging a Pitts" that I use. Made it a fairly simple job.


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Old 08-23-2015, 11:03 AM   #3
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Hi Doug,
Is this what your talking about, or is there something else?
The documents were sent in by Macwolf.

Let me know if I am close.
Thanks.

http://www.biplaneforum.com/showthread.php?t=2159

Side note:
I do have these https://secure.steenaero.com/Store/s...81212891A8C61B
But to make use of them I'd better find out how they are used and when are they used.
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Last edited by taff; 08-23-2015 at 11:15 AM. Reason: added the boards
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Old 06-11-2017, 12:18 AM   #4
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Default Tight wires, rigging done

Today I finished the rigging of my wings.
I fussed around for a long time and got tired of the project. A couple of weeks went by and I knuckled sown to it.
I made some rigging boards, the pattern I had from Steen and the idea I saw in a post from Chris. This helped enormously.

Got the tail up to 1.5 degrees +
I needed to make sure the top wing was level throughout. I slackened everything and concentrated on the landing wires, this made sure the wing was level and not sagging at the tips.

I did have a positive incidence at the wing tips (as compared to the board reading at first rib position) and the only way I could remedy this was to make shims and insert them at the rear of the I strut.

One Stainless shim on each side of the wing did the trick of leveling the chord.

Slowly I tightened the flying wires and kept check on the level resting on top of the wing.

In the end I have a (+ -)25 lb. pull on my digital type fish scale, flexing the wires about 2 inches at the middle.

Tomorrow I will add the lock nuts.
I couple of photo's below.
DSCN6063 (800x600).jpg   DSCN6053 (800x600).jpg   DSCN6057 (800x600).jpg   DSCN6064 (800x600).jpg   DSCN6065 (800x600).jpg  

DSCN6066 (800x600).jpg   DSCN6067 (800x600).jpg  
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Old 06-11-2017, 12:27 AM   #5
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Great! That will be a good place to start until test flights! Good to see your progress! Man, a lot of biplanes completed and nearing completion recently!
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Old 06-11-2017, 12:45 AM   #6
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An AN970 washer or a hardware store fender washer at 1/2 the thickness of the AN washer can fine tune that 3/16 shim if needed.

Bob
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Old 06-11-2017, 01:26 AM   #7
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You know. I don't know anything BUT I know quality work when I see it, even if it's online. That is nice work you've done.
I know you are proud.. You should be..
Congrats!
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Old 06-11-2017, 02:00 AM   #8
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Yep. Looks like you are on the right track and you've got a good starting point.

Exciting times around here.
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Old 06-11-2017, 02:19 AM   #9
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Ya know what works better than an AN970 washer...... jumping on amazon and buying some titanium ones! Just sayin
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Old 06-11-2017, 02:21 AM   #10
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Quote:
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Ya know what works better than an AN970 washer...... jumping on amazon and buying some titanium ones! Just sayin

sounds like the 3/16" SS shim needs to replaced with titanium ........ or did the AS II S secretly fly today and need a shim ?
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Old 06-11-2017, 02:24 AM   #11
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Quote:
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Great! That will be a good place to start until test flights! Good to see your progress! Man, a lot of biplanes completed and nearing completion recently!
Ok' I got to ask....what happens between now and test flights?
I'm thinking you foresee another rigging event after things bed down and settle themselves.

Yes! Progress, one of my next little projects is making javelins. I am open to suggestions
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Old 06-11-2017, 02:25 AM   #12
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Or, if you want to save even more weight, use aluminum for your shim.....
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Old 06-11-2017, 02:26 AM   #13
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Quote:
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Ok' I got to ask....what happens between now and test flights?
I'm thinking you foresee another rigging event after things bed down and settle themselves.

Yes! Progress, one of my next little projects is making javelins. I am open to suggestions

Yes. I recently rerigged my Eagle after stuff settled in after 12 hours or so. I also found that I didn't have the wires right enough.
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Old 06-11-2017, 02:29 AM   #14
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Or, if you want to save even more weight, use aluminum for your shim.....
Installing that shim was a pain in the ass. I had to lift the wing at wing tip and insert the shim at the same time, while standing on two ladders.
The shim is in
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Old 06-12-2017, 03:34 AM   #15
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Eric,
Remember our old free flight models...2 degrees down and right on the prop.
With our biplanes set up zero on everything, there is no way they will fly hands off.
And even if trimmed out perfect it will only be at one speed.
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Old 06-12-2017, 01:10 PM   #16
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Eric,
Remember our old free flight models...2 degrees down and right on the prop.
With our biplanes set up zero on everything, there is no way they will fly hands off.
And even if trimmed out perfect it will only be at one speed.
Good to know. This gives me comfort, I think


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