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  • April 25, 2024, 05:52:01 AM

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31
1/2 A building. / Re: #2 wood screws
« Last post by Ken Culbertson on April 23, 2024, 11:27:30 AM »
Quote from: Paul Smith on April 23, 2024, 08:17:48 AM
Another good approach for children's trainers is dispense with threaded fasteners and use rubber bands.  Put dowels in place of the bolts and provide an anchor rod behind the engine mount.

A broken gum band can cut your losses.
From the looks of the glow plug fins it worked.  #^
32
Tom Dixon products / Tom Dixon Re: Joe Nall
« Last post by Jim Catevenis on April 23, 2024, 11:11:21 AM »
From Tom Dixon        Re: “Joe Nall”

The Joe Nall gathering/contest is coming up shortly.  I plan to be there late Thurs. morning, May 16th through late Fri. pm May 17th.

I will have several planes for sale, with, or without engines, and also a bunch of recently “rescued” engines, all in excellent condition.

If you are interested in acquiring any of these, please call.  It’s too much to list here.

Tom Dixon
770-592-3279
315 Santa Anita Ave.
Woodstock, Ga 30189
33
Classifieds / Tom Dixon Re: Joe Nall
« Last post by Jim Catevenis on April 23, 2024, 11:10:06 AM »
From Tom Dixon        Re: “Joe Nall”

The Joe Nall gathering/contest is coming up shortly.  I plan to be there late Thurs. morning, May 16th through late Fri. pm May 17th.

I will have several planes for sale, with, or without engines, and also a bunch of recently “rescued” engines, all in excellent condition.

If you are interested in acquiring any of these, please call.  It’s too much to list here.

Tom Dixon
770-592-3279
315 Santa Anita Ave.
Woodstock, Ga 30189
34
Open Forum / Tom Dixon Re:Joe Nall
« Last post by Jim Catevenis on April 23, 2024, 11:09:13 AM »
From Tom Dixon        Re: “Joe Nall”

The Joe Nall gathering/contest is coming up shortly.  I plan to be there late Thurs. morning, May 16th through late Fri. pm May 17th.

I will have several planes for sale, with, or without engines, and also a bunch of recently “rescued” engines, all in excellent condition.

If you are interested in acquiring any of these, please call.  It’s too much to list here.

Tom Dixon
770-592-3279
315 Santa Anita Ave.
Woodstock, Ga 30189
35
1/2 A building. / Re: #2 wood screws
« Last post by 944_Jim on April 23, 2024, 11:01:37 AM »
Mr. Paul,

I'll remember this one!

Thanks much.
36
Open Forum / Re: Ball Links
« Last post by Ken Culbertson on April 23, 2024, 10:38:35 AM »
Before you get any of these make sure you have 4-40 taps, both left and right.  They come untapped and the rubber is very hard, much harder that a DuBro.  They will not self thread using a bolt.  The hole is deep so you can tap it a full 1/2".  Once tapped, links are very easy to turn with just enough hold to keep them from rotating on their own.  I tested one with only 4 turns in the threads and it held for as hard as I could pull on the pushrod.  In my bag of 10, all 10 of the balls were tight and very free.  In my last bag of DuBro about 1/2 were too tight to use.

Ken

Just curious, does anybody make a 3.75-40 tap just for ball links? LL~
37
ARF'S / Re: Brodak SV-11 ARF
« Last post by Alex Grudev on April 23, 2024, 09:11:08 AM »
Quote from: Don Jenkins on April 23, 2024, 07:28:55 AM
I set the plane on the landing gear with the tail on a small box and shim it with some balsa until its level. I did not have the flaps installed at this point. You can do it with the flaps installed, but it becomes more difficult to get the incidence meter in place and a slight movement of the flaps causes a deflection in incidence.  Once I get the wing glued in place I do the stabilizer the same way.  I also found that both of the ARF SV-11's I put together did not need much adjusting other than a bit of sanding to get the stabilizer level.  As a side note, I usually glue the flaps and elevators on as the final step in the build, because I normally scratch build and paint. This way the hinges don't get gummed up with paint.

Don
Thank you very much Don for the detailed answer, will try this method. Now its a high time to order an incidence meter :)
38
Open Forum / Re: Mustunt 3 and 4 plans
« Last post by Steve Berry on April 23, 2024, 09:02:00 AM »
There's also the library that Al put out that has lots of great info, with "Book 2" particularly having around 300 pages dedicated to the Mustunt IV.

Al's Models
Book 1: https://drive.google.com/file/d/18k9neW9gjtTekWdFx4mNDnhwdEmpM_C5/view?usp=sharing
Book 2: https://drive.google.com/file/d/1b2logRTrqYsRDyIWB200weEmmiaD0hIg/view?usp=sharing
Book 3: https://drive.google.com/file/d/1Btv22cpTWA52GbMJpfXlodDahi6ePjmz/view?usp=sharing

Mustunt Plans
Mustunt I: https://drive.google.com/file/d/1l0cLHc-iign9OG9Myi9nTwNfkkB9laHr/view?usp=sharing
Mustunt II: https://drive.google.com/file/d/1DVtcu5VScoeC08wZ4OfGQcN8AYNao4jh/view?usp=sharing
Mustunt III: https://drive.google.com/file/d/14LJFlPSPL6MQ5LGnaTi62DGLhehWUnIS/view?usp=sharing
Mustunt IV:https://drive.google.com/file/d/1ZYYHH8sHXxMLTs6u78MuYQ3CvCom1tzu/view?usp=sharing

Copy of the original magazine article: https://drive.google.com/file/d/17iLuu2SMGqxwmdIKBNvRKN9eYVBCMLr5/view?usp=sharing

All of the above has been collected from the interwebs over the past several years. I own none of it; all credit to original publisher(s) and of course, to Al!

Steve

39
1/2 A building. / Re: #2 wood screws
« Last post by Paul Smith on April 23, 2024, 08:17:48 AM »
Another good approach for children's trainers is dispense with threaded fasteners and use rubber bands.  Put dowels in place of the bolts and provide an anchor rod behind the engine mount.

A broken gum band can cut your losses.
40
Open Forum / Re: Plugging boost port on fox .35
« Last post by spare_parts on April 23, 2024, 07:32:03 AM »
I had to look that up. Kadency effect is a vague description of resonant behavior of the crankcase, intake, cylinder, and exhaust all together. The prime example seemingly a pulse jet, ( a tuned pipe with no engine, lol ) Today it's understood as a combination of components and events. Doesn't even exist without a tuned exhaust?

Have you ever been driving in the car and made a turn, then feel the heat/AC blow at you for a moment from a direction different than usual? The air exited the vent headed in a direction and your car turned while it was still moving. It would seem that, at several thousand RPM, inertia of the transfer charge would have little impact overall, but maybe it still shows up.
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