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Post by Garf on Sept 19, 2010 17:45:46 GMT -7
The Galaxy now has a ST 35S. It should run well with a 10-6. I think I have a 1/4 scale J3 wheel somewhere. I had it on the Bamboo Bomber at the end. Even that load would float across the grass with them.
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Post by kiwi1 on Sept 19, 2010 18:04:47 GMT -7
Do you use adapter plates to be able to swap engines around a lot? I always wanted to have a collection of aluminum adapters that all fit the same outside edge holes, but had varying inner hole spacings, and different inner opening widths, and had a bunch of blanks made up, but just don't swap engines quite as much as you seem to these days, so I never got around to drilling the inner holes and matching the inner spacing to various crankcase bottom ends.
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Post by Garf on Sept 19, 2010 21:01:54 GMT -7
Certain engines come close enough to interchange. I just removed a Fox 36X from one plane and replaced it with a Johnson Sport Special. The Brodak 40 interchanges with the OS 35S, FP35 & 40, and LA 40 & 46. UPDATE:The Johnson blew up, so I removed it and installed a Torpedo 35 greenhead.
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Post by Garf on Sept 21, 2010 17:15:02 GMT -7
I have a new gear leg made up, big enough to give it an extra inch of clearance. Now to install it.
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Post by Garf on Sept 22, 2010 20:35:35 GMT -7
Test ran the ST 35 today. After a plug and prop change, it did fairly well.
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Post by Garf on Sept 28, 2010 17:24:50 GMT -7
Tried to fly the Galaxy/ST 35S. It didn't cooperate. Pulled the ST and installed an early Johnson small shaft 35. I also changed the tank for an early steel clunk tank. Hope it works.
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Post by Garf on Oct 3, 2010 19:11:39 GMT -7
This new combo flies fairly well. Power is borderline, needs larger tank, but at least it runs out the tank. It quit a little early and I planted it. Knocked the tail off.
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Post by Garf on Oct 5, 2010 11:30:54 GMT -7
Tail is back on. I need to refinish the rear. I have put the tank from the Fronkensteen 3 onto the Galaxy. I'm thinking of trying the Johnson Stunt Supreme on the Galaxy. Its the only large shaft Johnson I have left that hasn't thrown a rod. UPDATE: The Galaxy now has the Johnson Stunt Supreme and the longer landing gear leg. We'll have to see how much it helps.
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Post by Garf on Nov 5, 2010 19:03:20 GMT -7
Johnson SS is a good power match for this thing. It won't run in a clean 4 cycle. That's strange since it was set up and chromed by GMA.
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Post by Garf on Nov 13, 2010 20:53:58 GMT -7
Every so often, I do something simply because I feel like it, even though it makes no particular sense. I have a McCoy 29 Sportsman that I have wanted to fly for a long time. Since the Galaxy felt overpowered with the Johnson Stunt Supreme, I decided to try the McCoy on it. I hope it survives. Attachments:
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Post by Garf on Dec 4, 2010 12:04:11 GMT -7
I tried a couple of flights with the McCoy 29. It simply wouldn't hold a setting. I would have expected a rear rotor engine to do better. The McCoy has been removed and a Johnson Combat Special has been installed that ran very well on the bench. I hope it does as well in the air.
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Post by Garf on Dec 4, 2010 12:08:42 GMT -7
I am going to need to install a 2 wheel gear on the Galaxy in a similar manner as I did the PT-19, only cleaner. I need to put some thought into this one.
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Post by Garf on Dec 4, 2010 21:43:57 GMT -7
The gear is made. I made up double wide clips to attach the gear. I hope the clips will be strong enough.
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Post by Garf on Dec 5, 2010 21:06:19 GMT -7
I flew this thing today and managed to plant it upside down. Removed the entire tail group. Now I can redesign it (again). At least the Johnson Combat Special did well.
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Post by Garf on Dec 25, 2010 13:17:14 GMT -7
I finally got around to repairs on the Galaxy. I found a stab/elevator from one of my partners wrecks that looks strange, but should be ideal for the Galaxy. Pics later. During the repairs, I found that the fuel tank got smeared by the upside down crash. Back to the drawing board. UPDATE: The "new" stab/elevator has been grafted to the Galaxy and reinforced. Next will be paint and another tank. I may need another NV for the Johnson too. I can't forget the controls. UPDATE: Paint work is almost done. Controls will be next. Final step will be the offset landing gear similar to the PT-19.
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Post by Garf on Jan 2, 2011 15:28:19 GMT -7
Tried to fly it again today. Got a bad setting but went ahead anyway. MISTAKE. Another crash. Severe damage.
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Post by flyingtigre on Jan 18, 2011 20:57:39 GMT -7
Do you use adapter plates to be able to swap engines around a lot? I always wanted to have a collection of aluminum adapters that all fit the same outside edge holes, but had varying inner hole spacings, and different inner opening widths, and had a bunch of blanks made up, but just don't swap engines quite as much as you seem to these days, so I never got around to drilling the inner holes and matching the inner spacing to various crankcase bottom ends. I've been intrigued by your idea of adapter plates. I haven't built a great variety of planes so have basically stuck with one engine platform - the mounting pattern associated with ST G21's. Slapping on my Prather drill jig gives me the proper spacing for the mounts as well as the bolt pattern. I've no idea how many engines fit this pattern but the McCoy .35 and Fox .36 conform. Recently I've encountered an instance where an adapter plate might be of value however as I've never seen such a beast, I've no idea what such an item would look like. As a trial I've cut a "C" out of 1/10 inch aluminum (scavenged from the back of a computer tape) but wonder if this would be strong enough to hold even a moderately powerful engine. I'm interested in any site, etc. where I might get some information, specs, etc. Thanks for any and all assistance. .
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Post by Garf on Jan 29, 2011 18:29:25 GMT -7
Do you use adapter plates to be able to swap engines around a lot? I always wanted to have a collection of aluminum adapters that all fit the same outside edge holes, but had varying inner hole spacings, and different inner opening widths, and had a bunch of blanks made up, but just don't swap engines quite as much as you seem to these days, so I never got around to drilling the inner holes and matching the inner spacing to various crankcase bottom ends. I've been intrigued by your idea of adapter plates. I haven't built a great variety of planes so have basically stuck with one engine platform - the mounting pattern associated with ST G21's. Slapping on my Prather drill jig gives me the proper spacing for the mounts as well as the bolt pattern. I've no idea how many engines fit this pattern but the McCoy .35 and Fox .36 conform. Recently I've encountered an instance where an adapter plate might be of value however as I've never seen such a beast, I've no idea what such an item would look like. As a trial I've cut a "C" out of 1/10 inch aluminum (scavenged from the back of a computer tape) but wonder if this would be strong enough to hold even a moderately powerful engine. I'm interested in any site, etc. where I might get some information, specs, etc. Thanks for any and all assistance. . I believe the setup that Brodak uses on their ARF's is as good as any. It clamps the engine to the front of the model by the lugs. Attachments:
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Post by flyingtigre on Feb 3, 2011 8:17:25 GMT -7
Thanks for the tip. One look at it and I wondered why I hadn't thought in that direction - looks remarkedly like the hold downs in my test stand.
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Post by Garf on Feb 7, 2011 17:37:39 GMT -7
The repairs on the Galaxy are almost finished AGAIN. I have replaced the NVA that caused the last crash. Now lets see how it flies with the "new" stab assy.
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