Balsa USA 1/4 Sopwith Pup build
#426
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RE: Balsa USA 1/4 Sopwith Pup build
ORIGINAL: ALO 111
HI all very chuffed to say we flew my pup again this weekend at our annual flyinn (over 1oo pilots about 200+ aircraft) and she won the WW1 trophy. Flown so scale by my friend it was awesome. Scale loops and sloooow low flybys i cant believe it is over 9 kg in fact i do belive it makes it look more scale.
Must still get maiden vid from my test pilot.
Chat later
Barry
HI all very chuffed to say we flew my pup again this weekend at our annual flyinn (over 1oo pilots about 200+ aircraft) and she won the WW1 trophy. Flown so scale by my friend it was awesome. Scale loops and sloooow low flybys i cant believe it is over 9 kg in fact i do belive it makes it look more scale.
Must still get maiden vid from my test pilot.
Chat later
Barry
Looking forward to the video.
Zor
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RE: Balsa USA 1/4 Sopwith Pup build
I agree on the choke, and Idid exactly what you described(ran the choke to the cockpit via a well supported golden rod). Attached a threaded knob to the end for a good grip. This keeps the system simple, light, reliable, vibration-free, and puts the control in the cockpit and out of site along with my switches.
#428
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RE: Balsa USA 1/4 Sopwith Pup build
ORIGINAL: KDBrown
I agree on the choke, and I did exactly what you described (ran the choke to the cockpit via a well supported golden rod). Attached a threaded knob to the end for a good grip. This keeps the system simple, light, reliable, vibration-free, and puts the control in the cockpit and out of site along with my switches.
I agree on the choke, and I did exactly what you described (ran the choke to the cockpit via a well supported golden rod). Attached a threaded knob to the end for a good grip. This keeps the system simple, light, reliable, vibration-free, and puts the control in the cockpit and out of site along with my switches.
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RE: Balsa USA 1/4 Sopwith Pup build
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
Wes
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RE: Balsa USA 1/4 Sopwith Pup build
Use the trick of tacking the struts and gear with CA. Works great and holds everything in place while you solder, and simply burns off cleanly. That REALLYhelped. Ialso used the copper wire out of standard thermostat wire.
ORIGINAL: sprgfvr02
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
#431
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RE: Balsa USA 1/4 Sopwith Pup build
ORIGINAL: sprgfvr02
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
Put the gloves on and wipe them down with a rag soaked in meths before use.
Use a bloody big soldering iron, you'll need to put a lot of heat into those parts.
I personally didn't like the CA positioning method, I used clamps and tightly wrapped the parts with copper wire till it sat right before soldering.
Use plenty of flux, remember when heated it will flow a bit, the solder will flow to wherever the flux is.
Heat the part, not the solder, keep the iron on the part till the solder goes shiny.
A couple of times I didn't like the way it looked so I cleaned it up with a stainless wire brush, re fluxed and added more solder.
After I was done, I actually thought "why was I worried" as it was actually fairly strait forward, result is rock solid.
Regards Mark
#432
Senior Member
RE: Balsa USA 1/4 Sopwith Pup build
ORIGINAL: ALO 111
HI all very chuffed to say we flew my pup again this weekend at our annual flyinn (over 1oo pilots about 200+ aircraft) and she won the WW1 trophy. Flown so scale by my friend it was awesome. Scale loops and sloooow low flybys i cant believe it is over 9 kg in fact i do belive it makes it look more scale.
Must still get maiden vid from my test pilot.
Chat later
Barry
HI all very chuffed to say we flew my pup again this weekend at our annual flyinn (over 1oo pilots about 200+ aircraft) and she won the WW1 trophy. Flown so scale by my friend it was awesome. Scale loops and sloooow low flybys i cant believe it is over 9 kg in fact i do belive it makes it look more scale.
Must still get maiden vid from my test pilot.
Chat later
Barry
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RE: Balsa USA 1/4 Sopwith Pup build
Refer to page 6 for a long discussion on the soldering process. A lot of good information that has already been discussed at length.
ORIGINAL: sprgfvr02
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
#434
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RE: Balsa USA 1/4 Sopwith Pup build
ORIGINAL: KDBrown
Refer to page 6 for a long discussion on the soldering process. A lot of good information that has already been discussed at length.
Refer to page 6 for a long discussion on the soldering process. A lot of good information that has already been discussed at length.
ORIGINAL: sprgfvr02
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
Not everyone has the same number of posts per page.
I spent the last half hour searching for this soldering information and could not find it.
Thanks,
Zor
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RE: Balsa USA 1/4 Sopwith Pup build
LOL!!! Start at post #126 !!
ORIGINAL: Zor
It would be preferable to show the post number.
Not everyone has the same number of posts per page.
I spent the last half hour searching for this soldering information and could not find it.
Thanks,
Zor
ORIGINAL: KDBrown
Refer to page 6 for a long discussion on the soldering process. A lot of good information that has already been discussed at length.
Refer to page 6 for a long discussion on the soldering process. A lot of good information that has already been discussed at length.
ORIGINAL: sprgfvr02
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
I am just about to the point of soldering cabane struts etc. As I work on the fuse I've been trying to visualize throttle linkage. servo placement, and choke. I like the idea of the cockpit area. I've spent some time going over this forum on the soldering topics. This part scares the daylights out of me. Should be interesting ;>)
Wes
Not everyone has the same number of posts per page.
I spent the last half hour searching for this soldering information and could not find it.
Thanks,
Zor
#436
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RE: Balsa USA 1/4 Sopwith Pup build
KDBrown,
Thanks. Post #126 in my case is the first post on page 6 as I am using 25 posts per page.
Others may be different but post numbers follow each other no matter how many posts per page.
I have posted pictures of my soldering facilities a long time ago but that may not be easy to find.
I will gladly post them again in this thread if anyone wishes ___just ask.
Some good advice is already in this thread and good soldering is not a big problem.
Following a good procedure however is essential for good success.
Zor
Thanks. Post #126 in my case is the first post on page 6 as I am using 25 posts per page.
Others may be different but post numbers follow each other no matter how many posts per page.
I have posted pictures of my soldering facilities a long time ago but that may not be easy to find.
I will gladly post them again in this thread if anyone wishes ___just ask.
Some good advice is already in this thread and good soldering is not a big problem.
Following a good procedure however is essential for good success.
Zor
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RE: Balsa USA 1/4 Sopwith Pup build
Thanks for the advice. Page six is where I found the series of posts related to soldering. I also have been reviewing an article by the late Mike Buzzeo on soldering. Nothing like too much information...
Wes
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RE: Balsa USA 1/4 Sopwith Pup build
I must be a complete dummy regarding soldering. I was able to solder the landing gear and the cabane struts fairly well. However, the clips that get soldered to the cabane ends are a different matter altogether. I'm using silver solder and flux. My solder gun is 120 v and ancient. I had the gun on the strut end of the clip for over five minutes and the solder did nothing. I applied the gun to the outside of the clip as suggested in the instructions, with the solder on the inside. Nothin'.
I'm thinking that my soldering gun is just too old and lost some juice, or I'm doing something seriously wrong.
Any suggestions?
Wes
#439
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RE: Balsa USA 1/4 Sopwith Pup build
ORIGINAL: sprgfvr02
I must be a complete dummy regarding soldering. I was able to solder the landing gear and the cabane struts fairly well. However, the clips that get soldered to the cabane ends are a different matter altogether. I'm using silver solder and flux. My solder gun is 120 v and ancient. I had the gun on the strut end of the clip for over five minutes and the solder did nothing. I applied the gun to the outside of the clip as suggested in the instructions, with the solder on the inside. Nothin'.
I must be a complete dummy regarding soldering. I was able to solder the landing gear and the cabane struts fairly well. However, the clips that get soldered to the cabane ends are a different matter altogether. I'm using silver solder and flux. My solder gun is 120 v and ancient. I had the gun on the strut end of the clip for over five minutes and the solder did nothing. I applied the gun to the outside of the clip as suggested in the instructions, with the solder on the inside. Nothin'.
I'm thinking that my soldering gun is just too old and lost some juice, or I'm doing something seriously wrong.
Any suggestions?
Wes
You are not a dummy at all. You are just in the learning process concerning joining things together.
In the case of metal to metal joints there is three processes ___
Soldering ... done wth a soldering iron and using solder that melts below 800 degrees F.
Braising ... done with a torch using things like silver solder that melts above 800 degees F.
Welding ... done with a torch or electric arc that melts both materials and use filler of the same material.
In your case you were apparently successful in soldering but the silver alloy you are using probably need a higher temperature than your iron is supplying. You can try a small propane torch being carefull to not overheat your materials.
Good luck first doing some practice not part of your project.
Zor
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RE: Balsa USA 1/4 Sopwith Pup build
Thanks for the input Zor. I've been doing some research into soldering guns, and now think my gun needs a new tip. The problem is, my gun was purchased several decades ago at Montomery Wards. This tip looks like it's been through a war. The solder is new; the flux is new, and the guy using these isn't.
I'm now looking for a new gun at all the local hardware locations.
Wes
I'm now looking for a new gun at all the local hardware locations.
Wes
#441
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RE: Balsa USA 1/4 Sopwith Pup build
ORIGINAL: sprgfvr02
Thanks for the input Zor. I've been doing some research into soldering guns, and now think my gun needs a new tip. The problem is, my gun was purchased several decades ago at Montomery Wards. This tip looks like it's been through a war. The solder is new; the flux is new, and the guy using these isn't.
I'm now looking for a new gun at all the local hardware locations.
Wes
Thanks for the input Zor. I've been doing some research into soldering guns, and now think my gun needs a new tip. The problem is, my gun was purchased several decades ago at Montomery Wards. This tip looks like it's been through a war. The solder is new; the flux is new, and the guy using these isn't.
I'm now looking for a new gun at all the local hardware locations.
Wes
Perhaps you are not interpreting my previous post properly.
I am trying to tell you that a soldering iron and even less a soldering gun does not have enough temperatue to use silver solder.
A new iron or a new tip on your soldering gun might not solve your problem.
Zor
#443
RE: Balsa USA 1/4 Sopwith Pup build
Wes, I soldered my Pup's gear and braces with a Weller solder gun with very good results. If you have a new tip, clean surfaces, the correct flux and practice a bit, you CanDo it! Let me know if you need a hand. The Stay Brite silver solder has very little silver in it, you don't need a blow torch!
-Les-
-Les-
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RE: Balsa USA 1/4 Sopwith Pup build
Everyone has their own preferences but for landing gear such as with the Pup, I have found that a torch works much better. It is much easier to apply even heat to the larger areas needed when doing this sort of job. The torches are inexpensive. I do a LOT of R/C soldering work because of the sorts of planes I am into (pre-WWI). I very rarely use a soldering iron and very much dislike soldering guns.
Just my two cents.
Just my two cents.
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RE: Balsa USA 1/4 Sopwith Pup build
Les, I threw away my old soldering gun and bought the Weller from Home Depot over the weekend. It worked well. Now on to the next step.
I may actually finish this plane sometime this year ;>)
Wes
I may actually finish this plane sometime this year ;>)
Wes
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RE: Balsa USA 1/4 Sopwith Pup build
Wes, I did the same. Bought the Weller from Home Depot, and it works just fine with silver solder. It also doesn't "overheat" the gear which is also important. However, I did have to return the first purchase as it "failed". Not sure of the Weller quality. Second one seems fine. Good luck!!
ORIGINAL: sprgfvr02
Les, I threw away my old soldering gun and bought the Weller from Home Depot over the weekend. It worked well. Now on to the next step.
I may actually finish this plane sometime this year ;>)
Wes
Les, I threw away my old soldering gun and bought the Weller from Home Depot over the weekend. It worked well. Now on to the next step.
I may actually finish this plane sometime this year ;>)
Wes
#447
RE: Balsa USA 1/4 Sopwith Pup build
Yep, everyone has their own way of doing things; I just found the solder gun easier to control the temperature for me. Nice work, gentlemen! Wes, it doesn't matter how long it takes as long as you enjoy the build. You will have a plane to be proud of!
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RE: Balsa USA 1/4 Sopwith Pup build
Well, I had to see what this bird was going to look like, so I slid the wheels and the cowl on after attaching the wings. Still a lot of work to do, but we're gettin' there.
One question. The manual does not mention anywhere aboutgluingthe stuts to the fuse. Who did what to secure these?
Wes
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RE: Balsa USA 1/4 Sopwith Pup build
Ialso noticed that during my build. I forced in epoxy around each mount as best that Icould, just to help keep it solid. Ihave found my mounts since to be very firm and solid.
ORIGINAL: sprgfvr02
Well, I had to see what this bird was going to look like, so I slid the wheels and the cowl on after attaching the wings. Still a lot of work to do, but we're gettin' there.
Well, I had to see what this bird was going to look like, so I slid the wheels and the cowl on after attaching the wings. Still a lot of work to do, but we're gettin' there.
One question. The manual does not mention anywhere aboutgluingthe stuts to the fuse. Who did what to secure these?
Wes
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RE: Balsa USA 1/4 Sopwith Pup build
No, you don't glue the struts to the fuse. Once the landing gear wire is all soldered up and installed on the plane, I test fit the struts and shape them so that they look like they are attached to the fuse. Then I use epoxy to glue them onto the wire. After they are sanded and stained, I then wrap them with carpet thread.
I went a little nuts with the Pup and DR1 undercarriage but even if you don't go with a suspension setup, the above technique should work well for you.
I went a little nuts with the Pup and DR1 undercarriage but even if you don't go with a suspension setup, the above technique should work well for you.