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1959 Berkeley Impulse Single Channel Pylon Racer Build

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1959 Berkeley Impulse Single Channel Pylon Racer Build

Old 03-10-2014, 12:44 PM
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Originally Posted by GallopingGhostler View Post
That is weird, but I've heard similar. There were a few posts that those as of several months ago had received their orders. But until I hear better, won't place an order with them. It is a shame as they had some of the best designs in their plans stock, and a lot of historical plans, too.
Hi George

Here is a thread discussing the matter. I linked near the end of the thread as it has more current info.
http://www.rcuniverse.com/forum/scra...warning-6.html

But there was another thread that at the end of it was suggesting that the plans service had been sold, but the new owners were still unable to supply plans due to computer crash of the database or something, but were attempting to rectify the problems.

I will do some more hunting and post what I can find. That is about all I am good for, for the next 2 days. Had a CT Milo-gram this morning. I have to stay in my recliner even tonight so the dye does not inter my head. Failure to do so can result in a head ache worse that the worst migraine and would send me to E.R is what I was told. Imageing that is needed for the neck surgery next month.

I find more I will link it here.

Ken
Old 03-10-2014, 01:07 PM
  #27  
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Originally Posted by GallopingGhostler View Post
. Wouldn't be of much use here. About the only ponds are the cattle run-off ponds at the dairy farms.
eewwwwwww



Ken
Old 03-10-2014, 01:15 PM
  #28  
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Originally Posted by flyingagin View Post
Hi George

Here is a thread discussing the matter. I linked near the end of the thread as it has more current info.
http://www.rcuniverse.com/forum/scra...warning-6.html

But there was another thread that at the end of it was suggesting that the plans service had been sold, but the new owners were still unable to supply plans due to computer crash of the database or something, but were attempting to rectify the problems.

I will do some more hunting and post what I can find. That is about all I am good for, for the next 2 days. Had a CT Milo-gram this morning. I have to stay in my recliner even tonight so the dye does not inter my head. Failure to do so can result in a head ache worse that the worst migraine and would send me to E.R is what I was told. Imageing that is needed for the neck surgery next month.

I find more I will link it here.

Ken
Here is the link I was hunting for.
http://www.rcuniverse.com/forum/scra...warning-7.html
They made not have been bought out, but it seems some thing is different.
But keep your plastic in your wallet still.

Ken
Old 03-10-2014, 01:52 PM
  #29  
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Originally Posted by flyingagin View Post
Hi George, Here is a thread discussing the matter. I linked near the end of the thread as it has more current info. http://www.rcuniverse.com/forum/scra...warning-6.html But there was another thread that at the end of it was suggesting that the plans service had been sold, but the new owners were still unable to supply plans due to computer crash of the database or something, but were attempting to rectify the problems. I will do some more hunting and post what I can find.
Ken, I don't think that will be necessary. That thread link you supplied says a lot. People are still getting ripped off, and no one has shut down their website as a yet, which is a shame. If they are in dissolution, they should have at least changed their webpage to an out of service one and take no more orders.

That is about all I am good for, for the next 2 days. Had a CT Milo-gram this morning. I have to stay in my recliner even tonight so the dye does not inter my head. Failure to do so can result in a head ache worse that the worst migraine and would send me to E.R is what I was told. Imageing that is needed for the neck surgery next month. I find more I will link it here. Ken
Ken, thanks for letting me know your health situation, will be praying for you. if I need to order plans, AMA, MAN, Ed Lidgard and others are still legitimate. Those I'll check with. I really liked RCM and bought plans from them 30 years ago. It's unfortunate that they aren't worth even considering for future orders.
Old 03-10-2014, 02:00 PM
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Sure wish some one would buy them and fix the problems. Still some plans I would love to get from there.

Ken
Old 03-10-2014, 02:52 PM
  #31  
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I think the fact that the word is getting out regarding their unreliability and just taking people's money, which is fraud is enough. If they wonder why they haven't any business, no wonder. Just wondering what plans would you like to get? Perhaps there are other sources out there. Some of the RCM plans are now on outerzone.co.uk. One can download the PDF and have it printed. Some RCM plans might be available from AMA through their John Pond collection.

I still have several volumes of their plans in miniature for reference in the RCM Illustrated Plans Guide to 1981. Might be a little crude, but could be upsized from 8.5"x5.5". I'm glad I picked up plans from them years ago, because now they're no longer available it seems.
Old 03-10-2014, 03:22 PM
  #32  
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I kept and still have some of the earlier magazines that had planes that I really liked (unfortunately I did not buy the plans then). I built a couple by just redrawing straight from the article. There have been a couple of Pitts plans. I got to build a Pitts. Want to build a Pitts S2C.



I remember seeing in the plans guide some planes that I liked but don't have that edition, I may not have had a current subscription to the mag at that time.

I would have to dig out my stash of old RCMs and go through them.

And you are correct. I have found some RCM plans on the internet. I promptly downloaded the ones I wanted. I have enough plans to keep me scratch building just about forever.

I may have to take up building by 2s and 3s or even 4s of the same plane. Sell the extras.

Ken
.
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Old 03-10-2014, 04:40 PM
  #33  
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If you go to outerzone.co.uk, search on "pitts", several come up:


I don't know if these suit your fancy, but might be a start.
Old 03-10-2014, 05:00 PM
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The name of the Berkeley .020 Payloader I was going on about is the Paydirt.. couldn't think of it before, and spotted the box just now. Time to haul it down and see what's left to do. I think just the fuse, so that and hangar rash repairs.

Love the long wing.
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Old 03-10-2014, 05:42 PM
  #35  
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Thanks George

You were a busy fellow

I just down loaded all of those.

There is also a scratch build thread on here by acerc that I followed. He used Andy Sheber 33% Pitts s1s.
http://www.rcuniverse.com/forum/rc-s...pitts-s1s.html

I corresponded with a guy that had 1/4 scale plans, but at the time had to pass. Did not have $$. I will check back with him maybe next month to see if he still has some. The canopy and all the fiber glass parts are available still. This would be about a 90 2 stroke glow or 1.20 four stroke glow or a 1.20 gas 2 stroke in power.

I think it will be impossible to s2c plans

I will spend some time studying the plans I just down loaded. Might end up going with one of them.

Wife really wants me to build a Pitts, partly because my last name is Pitts. When I was young I wanted to build a full size Pitts. But never had the money and I was not able to get a private pilots license due to some non correctable eye problems. The later solved that.

You know some of the plans you linked would also make a real sweet CL plane.

Ken

Ken
Old 03-10-2014, 08:30 PM
  #36  
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Originally Posted by MJD View Post
The name of the Berkeley .020 Payloader I was going on about is the Paydirt. Couldn't think of it before, and spotted the box just now. Time to haul it down and see what's left to do. I think just the fuse, so that and hangar rash repairs. Love the long wing.
They also have that plan here as a PDF download:
http://www.outerzone.co.uk/plan_details.asp?ID=5305

I like the classic looks of it. I also like the classic looks of its larger sibling the .049 Payee:
http://www.outerzone.co.uk/plan_details.asp?ID=1841


If I were to build it, it would be a scratch build.
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Old 03-10-2014, 08:37 PM
  #37  
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Originally Posted by flyingagin View Post
Thanks George. You were a busy fellow. I just down loaded all of those. There is also a scratch build thread on here by acerc that I followed. He used Andy Sheber 33% Pitts s1s.
http://www.rcuniverse.com/forum/rc-s...pitts-s1s.html

I corresponded with a guy that had 1/4 scale plans, but at the time had to pass. Did not have $$. I will check back with him maybe next month to see if he still has some. The canopy and all the fiber glass parts are available still. This would be about a 90 2 stroke glow or 1.20 four stroke glow or a 1.20 gas 2 stroke in power. I think it will be impossible to s2c plans I will spend some time studying the plans I just down loaded. Might end up going with one of them.

Wife really wants me to build a Pitts, partly because my last name is Pitts. When I was young I wanted to build a full size Pitts. But never had the money and I was not able to get a private pilots license due to some non correctable eye problems. The later solved that. You know some of the plans you linked would also make a real sweet CL plane. Ken
Didn't know you were looking for a larger, say 1/4 to 1/5 size Pitts. Yes, those I showed you still would make nice sport builds in smaller sizes. The last was a Walt Musciano CL job in 25" size. The others could be modded for a larger CL.

One biplane I'd like to scale up from 18" is Sterling's all balsa Hornet, a CL or FF bipe. It resembles a Liberty styled bipe but with its own unique look. Given the upper wing has considerable dihedral, it would probably make a better RC scale up than a CL one.
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Old 03-11-2014, 03:36 AM
  #38  
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Originally Posted by GallopingGhostler View Post
Smaller than 6-32, MJD, probably 4-40's.
I believe they might have been 5-40
Old 03-11-2014, 04:04 AM
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Interesting, airega1. That is the thread that Cox used for their reed valve .049 prop screws. It is an odd one, hard to find. In that case, might be better to retap for 6-32 or better yet metric, but I'd need an end tap most likely to cut the final threads.
Old 03-11-2014, 05:01 AM
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Originally Posted by GallopingGhostler View Post
Interesting, airega1. That is the thread that Cox used for their reed valve .049 prop screws. It is an odd one, hard to find. In that case, might be better to retap for 6-32 or better yet metric, but I'd need an end tap most likely to cut the final threads.
Hey it sure is, might be what I was thinking of
Old 03-11-2014, 05:16 AM
  #41  
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Originally Posted by GallopingGhostler View Post
Didn't know you were looking for a larger, say 1/4 to 1/5 size Pitts. Yes, those I showed you still would make nice sport builds in smaller sizes. The last was a Walt Musciano CL job in 25" size. The others could be modded for a larger CL.

One biplane I'd like to scale up from 18" is Sterling's all balsa Hornet, a CL or FF bipe. It resembles a Liberty styled bipe but with its own unique look. Given the upper wing has considerable dihedral, it would probably make a better RC scale up than a CL one.
Again George Thanks much. I took a better,longer look at those plans. The next to last one that you listed is very nice. It is a big guy at over 1/3rd scale (3.5:1). I can figure out the scaling factors to get it to print at 1/4 scale. It just is going to take me some time to do the math and verify that I got it correct. Approximately 1/4 scale is what we want to do. Only shooting for stand off scale, but still nice. The canopy and glass parts are available in that size. My ST 90 would make a suitable power plant. Love STs, have three would like more. I might be able to print the plans out with a tile print program. Got to do some math and some checking for free tile print software.

I sent that PDF. over to my wife to look at. She really does not understand plans very well but said it looked like the detail and quality I would need to build from.

I mentioned that at the proper scaling factor that you could make a neat CL plane. Well after looking at the plans in some detail I had a OH DUh moment and a chuckle at my self. The last plan you listed is a CL.John (aka Namvet) on TBHOTR comfirmed what I was told about keeping my head elevated till the dye has left my spine.
I have decide that a recliner is great for sitting in, taking naps in, but not so much as a bed. Oh well just 2 more nights. I had to really try and insist that my wife not sleep out here in the living room with me, but rather in the bed. She is a keeper, me not so much me. Fortunately she still keeps me.

Ken
Old 03-11-2014, 06:45 AM
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Ken, if you plot that plan at 0.875 or 87.5%, it will come out to quarter scale with a 60" wingspan. Walt Musciano's CL scale Pitts with 25" wingspan if scaled up 1.5 times would give a 37.5" wingspan, probably good for a Testor McCoy or Fox .35 CL engine.

I didn't realize that the real Pitts is a tiny thing. http://aviataircraft.com/pspecs_2103.html

It is an amazing stunt plane. Perhaps the other one is the Sorrell Hyperbipe, but that doesn't have the Pitts name.
Old 03-11-2014, 06:52 AM
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Originally Posted by GallopingGhostler View Post


I'll probably build the Aero Star as rudder and motor control, in spirit with the original.
You up for a "in spirit" rubber powered compound escapement?

We've come a long way!

George
Old 03-11-2014, 06:58 AM
  #44  
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Originally Posted by gcb View Post
You up for a "in spirit" rubber powered compound escapement? We've come a long way! George
Oh, I don't think I want to be that primitive. I was thinking of my Ace Pulse Commander on 27.045 MHz with Adams Stomper Actuator and KRD sequential quick blip throttle servo.
Old 03-11-2014, 08:37 AM
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Originally Posted by GallopingGhostler View Post
One biplane I'd like to scale up from 18" is Sterling's all balsa Hornet, a CL or FF bipe. It resembles a Liberty styled bipe but with its own unique look. Given the upper wing has considerable dihedral, it would probably make a better RC scale up than a CL one.
A big nostalgic favorite of mine.. sigh.. I have a kit sent to me a few years ago by a kind and sympathetic fellow modeler, it gets fondled often. Built lightly or with the wings converted to built up it might be a fun .020 RC conversion.
Old 03-11-2014, 09:10 AM
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MJD... I have thought that myself
Old 03-11-2014, 09:18 AM
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Originally Posted by GallopingGhostler View Post
Ken, if you plot that plan at 0.875 or 87.5%, it will come out to quarter scale with a 60" wingspan. Walt Musciano's CL scale Pitts with 25" wingspan if scaled up 1.5 times would give a 37.5" wingspan, probably good for a Testor McCoy or Fox .35 CL engine.

I didn't realize that the real Pitts is a tiny thing. http://aviataircraft.com/pspecs_2103.html

It is an amazing stunt plane. Perhaps the other one is the Sorrell Hyperbipe, but that doesn't have the Pitts name.
You numbers are right on George.
That yields roughly 60" wing span with a chord of 9.5" for a total wing area of 1138. Those numbers work for me.

Ken
Old 03-11-2014, 09:25 AM
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Originally Posted by MJD View Post
A big nostalgic favorite of mine.. sigh.. I have a kit sent to me a few years ago by a kind and sympathetic fellow modeler, it gets fondled often. Built lightly or with the wings converted to built up it might be a fun .020 RC conversion.
Could you do the wings out of DT foam and then cover with Chinacoat? I think it shrink temp is low enough to not melt the foam. Maybe some reinforcement might be needed.

Ken
Old 03-11-2014, 10:31 AM
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Originally Posted by MJD View Post
A big nostalgic favorite of mine.. sigh.. I have a kit sent to me a few years ago by a kind and sympathetic fellow modeler, it gets fondled often. Built lightly or with the wings converted to built up it might be a fun .020 RC conversion.
Nowadays with the modern lightweight electrical systems, would probably be even better. 18" (457mm) wingspan is smallish. Doubling it to 36" would put it in the .15 range for RC, done 3x or 54" would put it in the hot .46 or .52 - .60 range. (Or if built light an Enya .35 TV would suffice.) Built up symmetrical airfoil wings, incidences neutral with a touch of adjustment required for bipes (don't know exactly what that would be).

I like the way the fuselage is connected to the wings. It has that timeless look to it. At 36" one could use sheet foam for it.

For CL I'd go with about double the size, symmetrical airfoils, put a good 25 to 35 in it.
Old 03-11-2014, 10:36 AM
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Originally Posted by flyingagin View Post
Could you do the wings out of DT foam and then cover with Chinacoat? I think it shrink temp is low enough to not melt the foam. Maybe some reinforcement might be needed. Ken
I haven't tried HK "Chinakote" on Dollar Tree foam board yet. Given that the foam is easily painted, I'd probably go with sealing the edges and paper with MinWax Polycrylic then a light coat of Rust-O-Leum enamel.

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