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Post  firstwordisee Thu Jan 13, 2022 6:22 pm

I may have gotten in over my head, but I like challenges. While my current build is stalled waiting for a tissue order, I saw this model on the "bay" and kept going back to it. I couldnt resist...guess I've got a real problem. Arrived today and as I hoped the wood quality is superb. This one will take my entire building area so need to finish the Lizzie first but cant wait to start it.
There is no to place to fly this thing within 3 hrs or so but Ill figure that out later!
Galaxie 585- Whoa! Galaxy10
Galaxie 585- Whoa! Galaxy11
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Post  getback Fri Jan 14, 2022 6:48 am

Wow is right that's a pretty big model with 66" ws , should make a good flier !
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Post  Cribbs74 Fri Jan 14, 2022 9:58 am

Galaxie is an appropriate name. With the right engine you could probably launch that thing into orbit.
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Post  firstwordisee Fri Jan 14, 2022 6:56 pm

"Orbit", no kidding, the build is one thing but flying it is another, started researching local clubs here last night and got some very nice feedback from the "Orbiters" (ironic) a local free flight club, Ill see how build goes, if successful, its nice to know hobby is still alive here with a handful of diehards that can help, just like this forum.
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Post  fredvon4 Sat Jan 15, 2022 4:59 am

You need to become familiar with this web site.. click and you will see

http://www.texastimers.com/
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Post  firstwordisee Tue Jan 18, 2022 3:26 pm

Thanks for the link Fred, definitely need one of those.
First things first though, I stared at the plan for about an hour and a half the other day, scratching my head, reading so called "instructions" that I dont understand and seeing balsa parts that I have no idea where to use. But I dug in anyway on the massive wing, completely lost most of the time, when I make some progress Ill post some pics with lots of questions.
In the meantime, plan shows "fabric" at a few stress points, nothing in box ( this is a tissue model), can someone fill me in on "fabric" is this supposed to be silk or ? Im in over my head here!!
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Post  fredvon4 Tue Jan 18, 2022 4:08 pm

Many of the older kits had some cloth for elevator hinges and a lot of kits require user supplied "fabric" for high stress points

Most of us prefer the very light weight fiberglass and epoxy for engine crutch and wing root areas

If you are not in a hurry I have and excess amount of very light weight fiberglass I can fold into a large envelop and mail

I highly recommend Zap Finishing resin (link later as I have to feed dogs) or any hobby 2 part 30/60/90 minuet epoxy's--the longer the cure the better-- the skills and techniques we will describe later can easily be practiced on small test pieces
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Post  firstwordisee Tue Jan 18, 2022 4:43 pm

I was actually thinking of using epoxy and fiberglass cloth as I have a little but it is just the standard stuff, you think its too heavy?
Thanks for the offer to send some Fred, if you think above is too heavy, I need to go into town tomorrow, Ill see what I can find at hardware store.
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Post  fredvon4 Tue Jan 18, 2022 6:40 pm

Tomorrow I will send photos and description of the two "weights" I have but for now must sign off and go be husband, and doggy daddy

Later buddy
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Post  firstwordisee Wed Jan 19, 2022 8:55 am

Yea that regular fiberglass cloth I have is way to heavy. Ordered some Deluxe Materials 1.5 Oz this morning, hopefully that was the right choice.
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Post  fredvon4 Wed Jan 19, 2022 9:00 am

Reinforcements are always seeking to Increase strength and try to keep weight gain down. Many models use slightly smaller ribs in the center; out 1, 2  and up to 4 or 5 bays. This was so balsa could be glued in to add strength in the area or highest susceptibility to flex/stress failure (wing folding). It is important to orient the balsa grain spanwise and not chordwise for max strength.

Early builders cut silk covering to Over Lap in the center of the wing top and bottom by several inches, effectively having a double layer of silk over the balsa center sheeting.

With the increase of builders using MonoKote heat shrink covering, the center sheeting needed something to add strength---enter polyester, rayon, nylon, Dacron--dress lining cloth (fairly heavy).

Or harder to find but very low weight fiberglass cloth.

As carbon fiber became more available it was used in all sorts of light(er) weight manufacturing
One of the products that is very easy for us to use, has a lot of the strength of light weigh glass cloth, very much easier to cut to shape, but not as friendly around curves and recesses. Also can be found in 0.2oz half the weight as out light 0.56oz glass cloth

So lightest Glass cloth I have seen for models is 0.56 oz per sqYard. or 0.06oz per SqFoot

I know back in the 70s ~80s some guys found 0.3oz per sqYard that was used to lay up multi layer circuit boards but was horribly expensive and hard to handle and cut.

There is 0.75 Oz glass cloth

And of course for canoes, car repair, boat building, skates boards etc...glass cloth can be up 7~14oz per sqYard--very course weave heavy stuff

For our use, 0.75 is easiest to handle and 0.56 is way easier to lay into multiple curves and corners.


One source for Z-Poxy finishing resin
https://www.amazon.com/Pacer-Technology-Zap-Finishing-Adhesives/dp/B0006O8ESK?th=1

Carbon Tissue/veil in three different weights: 0.5oz/0.3oz/0.2oz
Galaxie 585- Whoa! 20220112

This has one layer 0.75oz glass on top of a stack of 0.5oz carbon (the carbon was just used for contrast)
Galaxie 585- Whoa! 20220114

Self explanatory
Galaxie 585- Whoa! 20220113

sample of 1.5 oz glass tape and 0.75 glass tape
Galaxie 585- Whoa! 20220116

Contrast of 0.56oz glass
Galaxie 585- Whoa! 20220117

Only place I ever found 90Min epoxy and reasonably priced glass cloth
Galaxie 585- Whoa! 20220115
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Post  firstwordisee Wed Jan 19, 2022 9:18 am

Good info Fred.
Lightest I could find was 1oz but they had very limited quantities and couldnt guarantee shipment so I went with 1.5, going to have to make that work. Also got the Zap 30 min epoxy on your recommendation. Off to work then dentist, Ill check in later.
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Post  firstwordisee Wed Jan 19, 2022 9:22 am

BTW, thanks for taking the time to post the pictures, learning a lot!
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