If we keep getting hammered by the FAA, he may have to.gahorn wrote:Now is the time to go ahead and install ADS-B Out.... It'll never get any cheaper!
27% 170B build
Moderators: GAHorn, Karl Towle, Bruce Fenstermacher
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Ryan Smith
- Posts: 1210
- Joined: Tue Nov 25, 2008 4:26 am
Re: 27% 170B build
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Ryan Smith
- Posts: 1210
- Joined: Tue Nov 25, 2008 4:26 am
Re: 27% 170B build
Looking good! You may want to experiment with using micro balloons to fill the weave of the fiberglass so that you don't add a bunch of weight in primer. Basically, when the resin is tacky dump micro balloons on the surface and spread them around carefully by hand, working them in to the weave, but being careful not to disturb the glass. The excess micro balloons will obviously not stick to the airframe, and can be scooped up and re-used. If you'd like a more in-depth tutorial, I can dig one up for you.Aryana wrote:I've come this far and now I'm really trying to make sure I don't blow it at the end and keep the cosmetic quality of this airplane as high as possible.
I've never done fiberglass over balsa, so I have a lot of apprehension about screwing up all my 400 hours of work with a bunch of resin and cloth that doesn't come out as I envisioned.
So I trsted a few scraps and decided to dive in. I am using 3/4 oz fiberglass cloth with thin finishing resin. Sanding with 220 grit in between coats, I thought it prudent to start with a low risk piece first to see how this goes, so I grabbed the hatch cover for the radio gear in the wing center section.
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Ryan Smith
- Posts: 1210
- Joined: Tue Nov 25, 2008 4:26 am
Re: 27% 170B build
Also, are you sealing the balsa before you glass it? You're not using contest balsa, so it's not going to be nearly as porous, but try using some cheap hair spray (like Aqua Net) before you start glassing so that the wood doesn't soak up too much resin. You'll inevitably want a nice finish, and I'm sure you'll want panel lines so you'll be adding a lot of primer as it is to get those.
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Ryan Smith
- Posts: 1210
- Joined: Tue Nov 25, 2008 4:26 am
Re: 27% 170B build
Grow your beard out a little bit and I doubt they'd think twice. Either that or get some feminine hygiene products to soak up the excess resin when you buy a case of hair spray.Aryana wrote:I had no idea you could do this! Think they'll give funny looks to the bald guy buying hair spray at the check stand?Ryan Smith wrote:Also, are you sealing the balsa before you glass it? You're not using contest balsa, so it's not going to be nearly as porous, but try using some cheap hair spray (like Aqua Net) before you start glassing so that the wood doesn't soak up too much resin. You'll inevitably want a nice finish, and I'm sure you'll want panel lines so you'll be adding a lot of primer as it is to get those.
Re: 27% 170B build
Never pass up a chance to go flying with the wife 
OLE POKEY
170C
Director:
2012-2018
170C
Director:
2012-2018
Re: 27% 170B build
You only have a couple more months to get it to CONVENTION!
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
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Ryan Smith
- Posts: 1210
- Joined: Tue Nov 25, 2008 4:26 am
Re: 27% 170B build
2,306Aryana wrote:I'm planning on giving it all I have so I can fly it this summer!
If you had to estimate, what would be your guess on the number of visible rivets on a 170B? I'll eventually know the real answer when I transfer them all to the scale model, but people keep asking me and I don't have a very good guess.
Re: 27% 170B build
OK Ryan has 2306 and I have 2307 and above! What does the correct guess pay?
John E. Barrett
aka. Johneb
Sent from my "Cray Super Computer"
aka. Johneb
Sent from my "Cray Super Computer"
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Ryan Smith
- Posts: 1210
- Joined: Tue Nov 25, 2008 4:26 am
Re: 27% 170B build
Wow!Aryana wrote:Whoever is closest will get a surprise item from my collection of 170 literature...it will be a original 170 brochure, advertisement, or postcard!
Just post your guess in this thread and we'll see where it ends up!
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cessna170bdriver
- Posts: 4062
- Joined: Mon Apr 22, 2002 5:13 pm
Re: 27% 170B build
There's 10,000+ in my RV-7 SO FAR, with at least 2,000 to go, and the vast majority are visible. I'm gonna guess 8000 in a 170 (A or B ).
).
Miles
“I envy no man that knows more than myself, but pity them that know less.”
— Thomas Browne
“I envy no man that knows more than myself, but pity them that know less.”
— Thomas Browne
Re: 27% 170B build
I'm tired of this thread. I think I'll delete it. 
Hitting the button now....
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(just kidding....
... GREAT work and fun to see!)
Hitting the button now....
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(just kidding....
... GREAT work and fun to see!)'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
Re: 27% 170B build
Funny how the last 10% always take 90% of the time. Quality requires persistence and persistence requires time.Aryana wrote:Good think there isn't a time limit on these sorts of things! The last 10% is taking longer than I had hoped. More progress will follow and I need to get to the rivet phase since that will take awhile.
Del Lehmann
Mena, Arkansas
Mena, Arkansas
Re: 27% 170B build
How do you plan to simulate corrugated controls? (or is that just silly?)
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons.
Re: 27% 170B build
Surprised you didnt try to vacuum bag it to help with the sanding.
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Ryan Smith
- Posts: 1210
- Joined: Tue Nov 25, 2008 4:26 am
Re: 27% 170B build
I think the peel ply would have left a textured surface that would be difficult to sand out.bagarre wrote:Surprised you didnt try to vacuum bag it to help with the sanding.