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Byron 1/3rd Scale RV-4

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Old 02-11-2015, 12:36 PM
  #26  
JeffH
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9462 is good, E-20HP is also good. It sets a bit quicker and maybe soaks into the wood a bit better, but either one is so strong it doesn't really matter. They have a 5 minute cure that is handy for gluing stuff in that is hard to clamp.
The West Systems Six-Ten is supposed to be just as good and it comes in a standard caulking tube size.
Old 02-12-2015, 05:45 PM
  #27  
flyerpeter
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Hello Gentlemen, So Paul, if you would recommend West System epoxy, does that mean that Hysol is polyester?? I can't find anything but epoxy on the Hysol sight.
Old 02-12-2015, 05:51 PM
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flyerpeter
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Here is some good info....
http://www.bvmjets.com/Pages/Catalog/aeropoxy.htm
Old 02-12-2015, 05:58 PM
  #29  
JeffH
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BVM aeropoxy is repackaged Hysol 9462, The V-poxy is Hysol E-20HP. They are both high strength, thixotropic epoxies. Very strong, very good stuff.
Old 02-12-2015, 06:02 PM
  #30  
flyerpeter
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So, What should I use to glue in formers and fuse parts on a Byrons Polyester fuse??
Old 02-12-2015, 06:24 PM
  #31  
JeffH
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I would use the 9462(Aeropoxy). Tack the formers in with thick CA, then run a nice bead of hysol around the joint. If you want to use the mixing nozzles, get as much as you can ready to hysol at one time. Less waste that way. If you dispense into a cup and mix by hand, you can do formers at your convienence.
Old 02-12-2015, 06:27 PM
  #32  
flyerpeter
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Thanks Jeff, Do you think that I need to lay in the 1 inch strips of glass like the instructions call for?
Old 02-12-2015, 06:37 PM
  #33  
JeffH
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I would, kind of like wearing a belt and suspenders. The cloth will add almost no weight and also give you the warm fuzzy feeling that your formers are there for life.
Use a good laminating epoxy, ie West Systems. You can also use the West to glass the wings and tail surfaces in preparation for paint.
Old 02-12-2015, 06:53 PM
  #34  
flyerpeter
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Ok, I'm a little confused, I should hysol the formers in and then put my glass strips over it when it is dry using laminating epoxy?
Old 02-12-2015, 06:56 PM
  #35  
JeffH
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Yes, that is how I would do it.
Old 02-12-2015, 06:58 PM
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flyerpeter
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Awesome, Thanks everyone one for all the help and advice....Peter
Old 02-13-2015, 04:33 AM
  #37  
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Pete,
JeffH has it right.
Hysol is a high strength epoxy that sticks to just about anything. I also just tack in the formers with CA and then go back and lay a finger bead of Hysol to the joint.
Adding the glass strips is up to you …I've never had a hysol joint fail, though I have seen epoxy pull away from a polyester surface.

Call me if you need some help
paul
Old 02-13-2015, 01:30 PM
  #38  
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As with all fiberglass the area to be glued should be scuffed with sand paper and cleaned of with alcohol for epoxy to adhere........
Old 05-05-2015, 07:02 PM
  #39  
rick hamel
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Actually a company called anchor seal made an epoxy for bonding polyester--used it for years-it was initially used on boats and they brought it to the hobby market-bought cases of the stuff-but they quit selling the 6 oz bottles--not enough interest
Old 05-05-2015, 07:14 PM
  #40  
rick hamel
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Byron said to use polyester to bond polyester but if you put wet resin on cured resin -the wet resin shrinks breaking the mechanical bond you may have had--just it's nature---anchor bond was the ticket!!!
Old 05-03-2016, 02:56 AM
  #41  
Bill Diedrich
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Man how time flies, it doesn't seem that it has been 8 1/2 years since I bought this.
Byron RV-4. They say time flies as you get older and they ain't kidding either!!!!!

A question for all of you experts, finally getting back to the RV-4, intend to finally
finisher her this go around. I weighed the airframe with out the landing gear and
no radio, or engine and at 10 1/2 lbs., do you think that at an estimated 17-18 lbs.
that a DLE-40 twin will be enough power to haul this baby around the sky?

Any and all discussions greatly appreciated..............

Bill D.
Old 05-30-2018, 12:56 PM
  #42  
Bill Diedrich
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Back at it again, 10 1/2 years since I bought this airplane, always seems something comes along to take me away from it.
Any of you out there that have or had this plane tell me how yours came out and what you powered it by. Would love to see
any pictures of it that you may have. Thinking DLE 40 Twin if it will fit without having to butcher the cowl up!!!! although it looks
like the RCGF 40 Twin with the angled plugs looks to be a better fit.

Bill D.
Old 03-21-2019, 01:22 PM
  #43  
ozief16
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Bill,

I’ve got a kit that the foam parts were lost (wings/stabs). Any ideas on where to find those? Mind helping with yours as a template? I’d rather not toss the fuse

Thanks
Dave
Old 03-21-2019, 01:59 PM
  #44  
JeffH
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Just toss the fuse to my house....😉
Old 03-21-2019, 04:38 PM
  #45  
ozief16
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And you’ll finish it up for me Jeff? Oh man, you are the BEST!!

Dave
Old 03-21-2019, 04:46 PM
  #46  
JeffH
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Yeah, I will finish it up, fly a few hundred times for teat flights and then give it back.
Old 03-21-2019, 05:25 PM
  #47  
Bill Diedrich
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I haven't touched the RV-4 in a couple months now as life has a tendency to get in the way of this hobby.
I don't think that at the stage my build is currently I will be able to lift any templates for the stabilizer or the
wing, as when I purchased this kit it was pretty much assembled, and just needed fitting out to complete.
I have made a lot of modifications to the assembly as far as the engine installation is done and also how
the servos for the control surfaces are installed. Planning on doing some sort of a simulated cockpit.

BTW I don't know if you visit Face Book or not but they have a group that deals with Byron kits on there.
you might find someone that has a kit that hasn't been started. here is a link to the Byron page:
https://www.facebook.com/groups/347990832373783/?multi_permalinks=567163030456561&notif_id=1552474612944405&notif_t=group_activity

Bill
D.
Old 03-21-2019, 08:22 PM
  #48  
ozief16
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Thanks Bill. Good thinking

jeff, deal, just make sure you paint it like this
Old 03-22-2019, 03:56 AM
  #49  
Bill Diedrich
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Good looking RV-3 & RV-4, must have been built by the same person considering
the paint schemes are the same.
Old 03-22-2019, 06:45 AM
  #50  
ozief16
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No, my dad bought the 4. when I was in high school. It was an awful four green color. I bought the 3 years later and we painted the 4 to match

We ended up selling both and buying a Glasair which has also been sold. They sure were fun to race around in


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