Go Back  RCU Forums > RC Airplanes > RC Warbirds and Warplanes
Reload this Page >

Topflite P-47 Gold kit dummy engine...

Notices
RC Warbirds and Warplanes Discuss rc warbirds and warplanes in this forum.

Topflite P-47 Gold kit dummy engine...

Old 02-04-2011, 07:56 AM
  #1  
Terry Bolin
Senior Member
Thread Starter
My Feedback: (7)
 
Join Date: Oct 2008
Location: NEOSHO, MO
Posts: 263
Likes: 0
Received 1 Like on 1 Post
Default Topflite P-47 Gold kit dummy engine...

I am pretty far along with a P-47 gold kit... .(super nice kit and product quaility) and I am to the point that I am considering the Dummy radial engine for the cowl..,., Has anyone use this with their kits and did you see a difference in cooling... I am installing a Thunder Tiger 91 inverted in the cowl for this plane. post pictures if you have 'em of the cowling area..Thanks!
Picture of my scratch built Stearman attached I hope....
Attached Thumbnails Click image for larger version

Name:	Sq47712.jpg
Views:	23
Size:	119.3 KB
ID:	1558272  
Old 02-04-2011, 09:16 AM
  #2  
Limey
My Feedback: (9)
 
Join Date: Dec 2004
Location: Wallasey, UNITED KINGDOM
Posts: 160
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Topflite P-47 Gold kit dummy engine...

Hi Terry.
The dummy engine is a great addition to your model and it dose also help with baffle cooling put the radial together and paint it after you have done that make a plywood back for it this is important as the dummy engine on its own will crack if not glued to a piece of 3/32 ply.
their should be a template on the plans for this, once you have mounted it to your plywood just cut out one cylinder the one in front of the fins on your engine, on the bottom of your cowl cut out a u shape at the back to allow the air to flow out this should be about 3 " wide by 3" long. Hope this helps Happy flying.
Limey.
Old 02-04-2011, 09:30 AM
  #3  
Chad Veich
My Feedback: (60)
 
Join Date: Dec 2001
Location: Litchfield Park, AZ
Posts: 7,609
Likes: 0
Received 8 Likes on 7 Posts
Default RE: Topflite P-47 Gold kit dummy engine...

Terry,

Adding the dummy radial to your Jug will really bring it to life and it does provide a perfect way to baffle the incoming air. If you need, or can afford, the weight up front I would recommend that you consider one of Frank Tiano's cast resin dummy radials. They are nicely made and the detail is much more crisp than with the vac formed offerings. I attach mine to a piece of 3mm light plywood and then mount the whole assembly to the firewall using stand-offs. This is a great way of getting nose weight as far forward as possible which is usually necessary on a warbird.

Here is a pic of the resin dummy as it comes from Tiano:



Here is one in my Midwest Texan:



Here you can see the stand-offs that the radial is mounted to. Simply 1/4" aluminum tube flattened on one end so they can be screwed to blocks on the firewall and filled with a dowel on the other end to accept the mounting screw for the dummy.

Old 02-04-2011, 01:28 PM
  #4  
Terry Bolin
Senior Member
Thread Starter
My Feedback: (7)
 
Join Date: Oct 2008
Location: NEOSHO, MO
Posts: 263
Likes: 0
Received 1 Like on 1 Post
Default RE: Topflite P-47 Gold kit dummy engine...

Thanks to both of you for your replys and input.. Better to get info from experience than trial and error...SO, Neither of you cut out the area between each jug... Just around the actual clyd and head.. this forces the air to flow past the head better than an open cowl?

Thanks again,, this will help to get it right the first time...
Attached Thumbnails Click image for larger version

Name:	Tr51842.jpg
Views:	38
Size:	46.0 KB
ID:	1558458  
Old 02-04-2011, 05:41 PM
  #5  
Brad330l
My Feedback: (1)
 
Brad330l's Avatar
 
Join Date: Jul 2004
Location: Perth WA, AUSTRALIA
Posts: 2,198
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Topflite P-47 Gold kit dummy engine...


ORIGINAL: Terry Bolin

Thanks to both of you for your replys and input.. Better to get info from experience than trial and error...SO, Neither of you cut out the area between each jug... Just around the actual clyd and head.. this forces the air to flow past the head better than an open cowl?

Thanks again,, this will help to get it right the first time...
Terry, yes just cut out where the head of your engine is and glue some baffling either side of the head/fins nice and close and this forces the air past it.

Cheers,

Brad
Attached Thumbnails Click image for larger version

Name:	Fd92722.jpg
Views:	41
Size:	85.2 KB
ID:	1558559  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.