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Old 04-07-2013, 04:34 PM   #1721
Bob Hudson
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Re: Blue Foamie


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Wow, looks great Hank,
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Old 04-07-2013, 05:06 PM   #1722
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Re: Blue Foamie

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Wow, looks great Hank,
Thanks Bob, long time no see Always looking for ways to knock down the weight, looks like I might get this one to come in at 114grams minus the batt.
With the size of this foamie, I'd say
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Old 04-07-2013, 05:36 PM   #1723
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Re: Blue Foamie

I tried the Foam Tac, it was ok, I only let it dry 1.5 hours, the aileron came loose approx. 1/2in. from the root, it might need more curing time.
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Old 04-07-2013, 05:44 PM   #1724
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Re: Blue Foamie

Always looking for ways to knock down the weight, looks like I might get this one to come in at 114grams minus the batt.
With the size of this foamie, I'd say [/QUOTE]

Hank
That would be awesome, I'm around 129g without battery but I'm using the 19-20 g 2204-14
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Old 04-07-2013, 06:31 PM   #1725
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Re: Blue Foamie

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I tried the Foam Tac, it was ok, I only let it dry 1.5 hours, the aileron came loose approx. 1/2in. from the root, it might need more curing time.
Just seems like a tackie way to do hinges
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Old 04-07-2013, 06:54 PM   #1726
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Re: Blue Foamie

That's funny Hank...lol
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Old 04-08-2013, 07:46 PM   #1727
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Re: Blue Foamie

Got the servos mounted and wired, using minimum wire. only thing left is the push rods and air breaks. Air breaks I will do differently to save weight.

Weight now without batt. is 109grams, I will confess that I used hollow carbon fiber rod. It saved about 4 grams. I'll get to the air breaks tomorrow.
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Old 04-08-2013, 08:09 PM   #1728
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Re: Blue Foamie

Hank
That's very light, I can't wait to see the end result.
You should come and visit us this coming weekend, we're having a small contest.
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Old 04-09-2013, 07:35 AM   #1729
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Re: Blue Foamie

Is everyone using hot glue? I couldn't glue the long parts straight on my 27" without it cooling before I could get it done. Ended up doing it in sections using lots of choice words and it was all warped.

I'm thinking of using Foam-Tac this time.

How do you guys get a straight aircraft using hot glue?

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Old 04-09-2013, 07:54 AM   #1730
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Re: Blue Foamie

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How do you guys get a straight aircraft using hot glue?

Al
I won't speak for anyone else, but ... yeah ... hot glue requires a LOT of speed for long runs like a fuse. Almost have to have a spare set of hands and have the part almost in place - maybe laying flat right above where it will sit in the end. Do a quick bead and flip into place - hence the extra set of hands.

I think the easier ways for this type of joint would be:

- foam tack
- Welders / JB Weld (I know these work on EPP, not sure on MPF, etc.)
- White glue (eg. "craft" glue)
- foam safe CA (if you're building an F3P model that needs to be rigid anyway.... this is nice, lite, and you can position the part then glue with thin)

The flexible glues are good for durable planes. I've heard it said that typical F3P planes are built to "fly" not crash .

I'm curious to see the final results from Gaston's foam tack hinging. On depron and MPF clear scotch tape works pretty good, but has to be replaced now and then. The flexible glue style hinge sounds appealing.

Cheers,
J
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