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Unusual Engines and Built for Speed Control Line Airplane

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Unusual Engines and Built for Speed Control Line Airplane

Old 09-24-2013, 04:34 PM
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juggler-3310
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Default Unusual Engines and Built for Speed Control Line Airplane

I just purchased several airplanes and a number of different engines at a sale in Indianapolis, and I have a few questions about them for the members of this forum. Some of these engines have markings on them, but most of them have no markings anywhere that I can see. I don't know what they are. I'm hoping that someone here might recognize them. Is the long tube engine a pulse jet? Anybody recognize who might have built it? Apparently the previous owner held many speed records for control line planes. The odd thing about the plane is that there is only one wire attached to it, not two. And this plane is surprisingly heavy for its size. Any idea what it is? What can these various engines be used on? Any idea what they might be worth? Thanks.

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Old 09-24-2013, 04:37 PM
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juggler-3310
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Oops! Here's what I think is the pulse jet.

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Old 09-24-2013, 04:56 PM
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the second one is a Nelson FIRE. First one says DOOLING which is pretty old like the 60's
Old 09-24-2013, 06:03 PM
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Juggler In the "hay day" of controline speed almost everything was flown with Stanzel Mono Line control. The line was twisted with a device that the pilot held, and a cam device in the airplane converted the motion to up and down elevator. Stanzel Mono Line's arn't made anymore, but I think there people making similar units for the very small market that still exists.

Going by rows the first engine is a Dooling, and probably a .29 displacement. It's a collectable engine. Engine #2 has been identified as a Nelson FIRE which stood for "front intake rear exhaust". It's the older "short stroke" and it could be a .40 displacement, but it could also be something else. Can't help with #3 but it looks like a Nelson copy. The engine in and out of the airplane # 4&5 and #6
look to be from the same manufacturer as #3. I'll go out on a limb and guess that they are Edmonds, but that's a real "wag". #7 is a Drone diesel, and another collectable engine. The Pulse jet looks like a Dyna Jet, but they all look similar. The heads on the Dyna jets were anodized red. This one looks too shinny to have ever been run. If you can find them, there have been some You Tube Videos on the internet of pulse jets. They are ear splitting loud! I believe Dyna Jets are also out of production, so jet speed flyers have to make most of their own parts, but there may be "cottage industry" business supplying parts like tail pipes.

You might post this in the Controline section and get additional information. Also the controline speed community is rather small, so with the name of the modeler that these used to belong to, it posible that you could find out their history? Good luck. You got some neat stuff. Greg
Old 09-24-2013, 07:37 PM
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The plane will need a dolly to take off, pavement is pretty well a must. It is pretty much a Pink Lady style. They are all pretty much the same except the sidewinder style. Lots of trouble to run steady, very finicky with a pipe, but satisfying when they work right. You may want to check out the NASS. North American Speed Society.
Old 09-25-2013, 02:15 PM
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That's not a Dynajet, but sure is a pulsejet. Dynajets were in production until recently and may still be - Curtis Dynafog is the mfg.


That might be a Bailey pulse jet. In recent years Bailey was a popular "cottage industry" maker of these for CL speed and sport. If so.. nice find. I'd be interested if you thought you might not use it.. hint hint.

As for the last engine - it's a Drone diesel. See: http://www.rcuniverse.com/forum/ever...l-engines.html

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