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TF P47 giant engine choices?

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TF P47 giant engine choices?

Old 06-06-2015, 11:28 AM
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kurrikan
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Default TF P47 giant engine choices?

Hi,everybody,i,m building the p 47 giant from top flite (razorback version),robart mains and tail wheels,gear doors,will be fiberglassed.An now it is the time to buy the engine.And i have seen many options but i not sure witch to choose i like radials but there is no many options.


what do you thing is the best option for this plane,maybe by the power the os gt 33 will be enough?? please ,help me to decide which is the best option

OS gt 33 -5,5HP

OS gt 60 -6 HP

DLE 55RA-5,5HP

SAITOfg 60 3 cilinders 4,5HP

LASER 300 /360 hp unknow

MVVS 50 irs HP unknow

take a look to my build thread at:http://www.miliamperios.com/foro/aer...o-t247405.html


another options are welcome!!!
Old 06-06-2015, 11:46 AM
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Chris Nicastro
 
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DLE 55RA
Great engine, affordable and reliable. I have a lot of experience so far with DLE engines from their 20,35,55 that I'd say to anyone use this brand.
The RA will fit perfectly as is and run fine in that plane. Use a Xoar 22x10 prop because the engine remains loaded in a dive and the reeds are not floating causing that strange sound. Use an NGK CM6 plug do not use the DLE plug. It's garbage, I tried it once to see how long it lasts and the only dead stick I had was due to that plug.
Plenty of power!
Old 06-06-2015, 11:57 AM
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TJC333
 
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DA-60. Some are using the DA-85.
Old 06-06-2015, 01:04 PM
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Lifer
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DLE 55 side-exhaust with a Xoar 22x10 prop:

https://www.youtube.com/watch?v=ZzPiCEolZ8s
Old 06-06-2015, 07:45 PM
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TimD.
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I know it is not in your list , but the Zenoah G-62 magneto is all I use in my 1/5 warbirds. It will balance with no extra nose weight either.
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Old 06-06-2015, 09:44 PM
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rm
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What 4 blade can you run on the g62?
Old 06-07-2015, 02:44 AM
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Lifer
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Here's a 4-blade on a 50cc engine:

https://www.youtube.com/watch?v=EpClzq7h_NE

I've got the same prop on the same airframe with a G-62 but haven't maiden-ed it yet.
Old 06-07-2015, 11:28 AM
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TimD.
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I have the Biela 20x10-4 blade on mine. You can use up to a 22x8-4 blade on the G-62 if you can find one.
Old 06-07-2015, 11:34 AM
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Lifer
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TimD,

How does yours perform with the 20x10x4 and with what engine?
Old 06-07-2015, 01:40 PM
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aquaskiman
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Originally Posted by kurrikan View Post
Hi,everybody,i,m building the p 47 giant from top flite (razorback version),robart mains and tail wheels,gear doors,will be fiberglassed.An now it is the time to buy the engine.And i have seen many options but i not sure witch to choose i like radials but there is no many options.


what do you thing is the best option for this plane,maybe by the power the os gt 33 will be enough?? please ,help me to decide which is the best option

OS gt 33 -5,5HP

OS gt 60 -6 HP

DLE 55RA-5,5HP

SAITOfg 60 3 cilinders 4,5HP

LASER 300 /360 hp unknow

MVVS 50 irs HP unknow

take a look to my build thread at:http://www.miliamperios.com/foro/aer...o-t247405.html


another options are welcome!!!
I
f you can afford it the saito FG60 R3 would be the coolest.
Old 06-07-2015, 02:37 PM
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JAYNC
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I have a dle85 in mine with a 24x14 prop but I will never go bigger than a 60cc ever again. All you do is chase vibration problems. A friend of mine uses mostly all dle55RA engines and he is always flying and I'm always fixing cracks. I think the 55RA is the perfect engine for these giant top flite planes. I am currently building the top flite zero with the dle61 but I have had to butcher the cowl because its a side exhaust. That rear exhaust on the 55RA makes things a lot easier. He uses the Bennet Mufflers instead of stock. As for the four blades, I tried it a Biela 20x10 once on a 60cc and screwed it to the wall of my trailer for decoration. I like my warbirds to be pretty fast and the 4 blades aren't.
Old 06-07-2015, 04:22 PM
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Kirk RC
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I have a ZDZ 80 in mine and the plane and engine are 11years old. Hundreds of flights. Mine is a kit built so I did beef up a number of areas including the engine box/bulk head area. The ZDZ is one of 3 that I have and they all run flawlessly.
Old 06-07-2015, 07:48 PM
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BobH
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My vote is also for the Saito FG 60. it wont sound like a chain saw flying around..
Old 06-08-2015, 12:56 AM
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aquaskiman
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Originally Posted by BobH View Post
My vote is also for the Saito FG 60. it wont sound like a chain saw flying around..
With the keleo exhaust go to you tube and listen to the difference
Old 06-08-2015, 02:32 AM
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kurrikan
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surely I must thank all your valuable opinions,and from Spain thanks you,The DLA 55RA has the cheapest price but i must admit that i like much more the saito fg 60 aeshtetically
but it is more expensive:At this point there a lot of job to do wiht my bird
i can keep the decision for a while ,will se what i will do!
Old 06-08-2015, 09:58 AM
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Cant beat the good old Zenoha 62 for warbirds, big lump, does the job, and will just het better the more its run, Love mine, and not as hard to start as you think, simple magneto, no electrics to go wrong, fit, and forget, ahhhh, the simple things But, it aint on your list, so, hey ho!
Old 06-08-2015, 07:38 PM
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Chris Nicastro
 
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G62 is a good'ol engine but the DLE 55RA has better performance. A radial would be great if its in the budget but Id suggest gas over nitro.
The Saito FG84 price has dropped, worth a look.

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