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ESM P47 Build

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Old 06-12-2013, 02:52 PM
  #201  
warbirdfan2
 
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Default RE: ESM P47 Build

Congrats on the maiden!!! Nice flight and landing. Hope you have many more.
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Old 11-24-2013, 04:27 PM
  #202  
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Guys I have the p47 and have been flying it for 2 years now. A great flying plane but mine is very sensitive on the elevator. I have dual rates set at 1/4" up and down with a little expo in it and that has helped. Also have shifted the cg back a bit from manual but it is still sensitive. Anyone else having this issue? Any suggestions?
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Old 11-24-2013, 08:20 PM
  #203  
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Originally Posted by voodoodb View Post
Also have shifted the cg back a bit from manual but it is still sensitive. Anyone else having this issue? Any suggestions?
Moving the CG aft will only make the elevator more sensitive. If you want it less sensitive you need to try moving the CG forward.
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Old 11-25-2013, 12:44 PM
  #204  
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Sorry guys. I have moved the cg forward. Took out half of the weight in the tail I had added to balance it.
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Old 11-26-2013, 05:10 AM
  #205  
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I agree, moving the tail back will increase sensitivity. Also, if I remember right, the CG from the plans is wrong. I did my own calculations based on MAC (Mean aerodynamic Chord) and have no sensitivity at all. The plane is heavy though, so heavy elevator input is needed automatically in turns or it loses altitude. Let us know how it turns out. Where IS your CG? If you let us know, I'll look at mine to compare.
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Old 11-26-2013, 10:18 AM
  #206  
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The plans say 136 mm from LE. Mine is 132 right now. Do you know what yours is?
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Old 11-27-2013, 01:25 AM
  #207  
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G'day all,
have been flying mine for several years, CofG is about 110mm back from the centre join of the wing, it is good, very nice to fly, I have a DLE 30 in mine, all batteries up the front, no lead, flies like a charm,
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Old 01-04-2014, 04:46 PM
  #208  
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Default P47 Thunderbolt CG--FINALLY

I finally got a chance to measure the CG location of my ESM p47. The engine is a Zenoah G38. Flies very powerfully. I didn't trust anything written on the box, or in the plans. So I recreated the wing planform in a CAD system based on actual measured points on the wing. I then figured out the 25% chord location for each station, representing the center of lift. I added them all up, and divided by the number of stations, giving me a MAC (mean aerodynamic chord) of 4.2" (106.68mm) as measured at the fuselage side. Here is the CAD file:

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Old 03-30-2017, 02:59 PM
  #209  
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Does anyone knows where to get a replacement wing for this bird?
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Old 05-13-2018, 02:08 AM
  #210  
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I know this is an old thread but I have just acquired a ESM P47, the silver one. I will be installing a DLE 30 in it and the ESM V4 retracts. Thanks for all he info here, hope to have photos to post one of these days!

Rudi
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Old 05-13-2018, 03:52 AM
  #211  
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Originally Posted by Rudix View Post
I know this is an old thread but I have just acquired a ESM P47, the silver one. I will be installing a DLE 30 in it and the ESM V4 retracts. Thanks for all he info here, hope to have photos to post one of these days!

Rudi
Mine is no longer in existence. No, it didn't crash as one might expect. It was destroyed in a fire. Sure loved it, it flew well. I had a Zenoah G38 that I converted to electronic ignition (from magneto). It was the first plane I had built in years in which I put a lot of scale detail. It flew heavy, but predictably. And with that big thick wing, it still landed gently. I'd love to have another one, but Ever Soaring Models has raised it's prices to where it doesn't really stand out as a great deal anymore. Plus, the supplier, Troy Built Models, went out of business.
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Old 05-13-2018, 05:17 AM
  #212  
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Default P-47

I still have one New in the box, will be planning to start on it in the fall of this year to have it ready by next years fly-ins, mine is getting a OS 33 for the power plant, retract Iím still on the fence about, any suggestions there?

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Old 05-13-2018, 08:05 AM
  #213  
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Originally Posted by Pull Up Now! View Post
Mine is no longer in existence. No, it didn't crash as one might expect. It was destroyed in a fire. Sure loved it, it flew well. I had a Zenoah G38 that I converted to electronic ignition (from magneto). It was the first plane I had built in years in which I put a lot of scale detail. It flew heavy, but predictably. And with that big thick wing, it still landed gently. I'd love to have another one, but Ever Soaring Models has raised it's prices to where it doesn't really stand out as a great deal anymore. Plus, the supplier, Troy Built Models, went out of business.
Oh no! Sorry to hear about the fire! I am sure the Zenoah flew it well, I had the magneto version a long time ago and it was a great motor.

It seems like the DLE 30 will fit nicely in the cowl, looking forward to the build, just finishing a Seagull FW-190 and have a DH.98 also ready to be test flown. I believe ESM is history so now we only have what stock is left, a bit sad. I still have a BF-110C and Stuka in boxes waiting their turn on the workbench.
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Old 05-13-2018, 08:07 AM
  #214  
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Originally Posted by hairy46 View Post
I still have one New in the box, will be planning to start on it in the fall of this year to have it ready by next years fly-ins, mine is getting a OS 33 for the power plant, retract Iím still on the fence about, any suggestions there?
I think the OS 33 will be great in the P47! I am planning on using the ESM V4 electric retracts, they are available locally, will report on their quality as soon as I have them.
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Old 05-14-2018, 06:50 AM
  #215  
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Default Thank you!

I canít wait to get this one done, just ran out of time on getting to it, very interested in how your retracts work, you will have to post some pictures, even better a video of it flying!
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Old 05-21-2018, 05:31 AM
  #216  
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Originally Posted by hairy46 View Post
I canít wait to get this one done, just ran out of time on getting to it, very interested in how your retracts work, you will have to post some pictures, even better a video of it flying!
Yes. I will post photos and hopefully a video as soon as it is done. My workshop is rather full at the moment. Just finished a Seagull 80" DH.98 Mosquito and working on a 80" FW-190 at the moment that is almost done. Then I have to pick one out of 5 kits for the next project, the P47 is at the top of the list at the moment!
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