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

CMP Hellcat

Thread Tools
 
Search this Thread
 
Old 12-21-2006 | 03:00 PM
  #1376  
Senior Member
 
Joined: Feb 2006
Posts: 146
Likes: 0
Received 0 Likes on 0 Posts
From: Chugiak, AK
Default RE: CMP Hellcat

I am enjoying reading this forum as I have the CMP F6F from Nitroplanes for one of my winter projects. I am interested in the discussions of the Air retracts that seem to center around CJ and Sierra. I'm sure that everyone has an oppinion about which is best. I'd love to see som pictures of either installed in the AC and what pitfalls you ran into during the process. I am also considering talking to Kelvin at http://www.keleo-creations.com/ about a custom exhaust. Has anyone tride a G-26 for a powerplant?

Thanks for any input.

Ben
Old 12-22-2006 | 06:11 AM
  #1377  
Senior Member
My Feedback: (4)
 
Joined: Oct 2002
Posts: 509
Likes: 0
Received 1 Like on 1 Post
From: RIDGEFIELD, NJ
Default RE: CMP Hellcat

hi,can anybody tell just what flutter will do to a plane in flight.
thanks Fred
Old 12-22-2006 | 10:26 AM
  #1378  
bigbird007's Avatar
 
Joined: Jun 2003
Posts: 321
Likes: 0
Received 1 Like on 1 Post
From: Shelton, WA
Default RE: CMP Hellcat

can anybody tell just what flutter will do to a plane in flight.
At first it just makes a gawd awful noise kind of like cards in the spokes, the end results are stripped gears in the servo or something else broken and no elevator control (if it is the elevator and not the ailerons) and then a crash.

bigbird
Old 12-22-2006 | 11:00 AM
  #1379  
Richard L.'s Avatar
My Feedback: (24)
 
Joined: Jul 2002
Posts: 8,788
Likes: 0
Received 4 Likes on 3 Posts
From: Renton, WA
Default RE: CMP Hellcat

The plane would take a big dive on its own when the elevator flutters. I've seen this on mine and on TT Rare Bear.
Old 12-22-2006 | 11:07 AM
  #1380  
Senior Member
My Feedback: (4)
 
Joined: Oct 2002
Posts: 509
Likes: 0
Received 1 Like on 1 Post
From: RIDGEFIELD, NJ
Default RE: CMP Hellcat

Hi my cat climes with almost no control,also the ele.has alot of play.I had 5 flights with no problems then it started.Is this flutter.
thanks
Old 12-22-2006 | 11:25 AM
  #1381  
Richard L.'s Avatar
My Feedback: (24)
 
Joined: Jul 2002
Posts: 8,788
Likes: 0
Received 4 Likes on 3 Posts
From: Renton, WA
Default RE: CMP Hellcat

Can you hear and see the elevator fluttering in the air?
Old 12-22-2006 | 11:27 AM
  #1382  
Senior Member
My Feedback: (4)
 
Joined: Oct 2002
Posts: 509
Likes: 0
Received 1 Like on 1 Post
From: RIDGEFIELD, NJ
Default RE: CMP Hellcat

I didnt notice
Old 12-22-2006 | 12:43 PM
  #1383  
Senior Member
My Feedback: (3)
 
Joined: Mar 2002
Posts: 449
Likes: 0
Received 0 Likes on 0 Posts
From: Arlington, TX
Default RE: CMP Hellcat


ORIGINAL: ffdq

Hi my cat climes with almost no control,also the ele.has alot of play.I had 5 flights with no problems then it started.Is this flutter.
thanks
Hi,
It is quite likely that whatever causes flutter is visiting your model now, and that flutter itself could take place. Keep your airspeed down, check for slack in the model's elevator servo, pushrods, horns, etc. Did you 'Y' your elevator pushrods? If so, you may be getting flexing at the 'Y'. The model gods have given you a warning-find the problem(s) with your elevator system!! Good Luck!!
hookemut
Old 12-22-2006 | 01:04 PM
  #1384  
Senior Member
My Feedback: (4)
 
Joined: Oct 2002
Posts: 509
Likes: 0
Received 1 Like on 1 Post
From: RIDGEFIELD, NJ
Default RE: CMP Hellcat

hi I do have a y in my pushrods.i,m going to change to 4-40 rods and carbon rods
ffdq
Old 12-22-2006 | 05:14 PM
  #1385  
bigbird007's Avatar
 
Joined: Jun 2003
Posts: 321
Likes: 0
Received 1 Like on 1 Post
From: Shelton, WA
Default RE: CMP Hellcat

I'd love to see som pictures of either installed in the AC and what pitfalls you ran into during the process.
Ben

I'm using the Sierra retracts and this is what I have so far. I still haven't figured out how I'm going to close the small doors yet (they're not on yet). I'm using a 3 1/2" wheel and had to make the opening bigger which meant cutting the ribs on either side of the wheel well and making new short ribs to strengthen the area. You also have to cut down the spar a little to get the retract in (see page 51). The gear doors are from Luke.

http://www.zollnermodels.com/

bigbird
Attached Thumbnails Click image for larger version

Name:	Yw67607.jpg
Views:	52
Size:	35.1 KB
ID:	581910   Click image for larger version

Name:	Hc93189.jpg
Views:	40
Size:	34.8 KB
ID:	581911   Click image for larger version

Name:	Sx60454.jpg
Views:	46
Size:	29.6 KB
ID:	581912  
Old 12-22-2006 | 09:16 PM
  #1386  
My Feedback: (44)
 
Joined: Oct 2005
Posts: 695
Likes: 0
Received 0 Likes on 0 Posts
From: Golden, CO
Default RE: CMP Hellcat

Nice job on that gear install.
Old 12-22-2006 | 10:11 PM
  #1387  
Senior Member
 
Joined: Feb 2006
Posts: 146
Likes: 0
Received 0 Likes on 0 Posts
From: Chugiak, AK
Default RE: CMP Hellcat

Bigbird, Thanks for the information. I came into a complete set of Robart's from a guy in our club that is selling a bunch of stuff. I've read on here at least one person that used the 615s so since I got Robart: #188 Air Control Kit, #615 100 Degree Rotating Mains, #164 G PSI Pump w/ Gauge, #650 Shock Landing Gear Strut,for the package price of $100.00 (all NIB). I figure if it turns out I can't use it here it will fit some future project. From the looks of your pictures you stripped the wings and are going to do a recover. What do you plan to use? What other mods are you doing? What engine? I've seen the Flap aileron Mod and that looks cool.

Merry Christmas

Ben
Old 12-22-2006 | 10:35 PM
  #1388  
bigbird007's Avatar
 
Joined: Jun 2003
Posts: 321
Likes: 0
Received 1 Like on 1 Post
From: Shelton, WA
Default RE: CMP Hellcat

Thanks Johnny.

Ben,

I'm going to fiberglass and paint. I've got a custom cockpit, drop tank and dummy radial also. I bought a YS 110 for power and plan on a Spectrum DX7 radio. I've built 4 kits and put together a couple of ARF's but this is my first foray into bashing... we'll see.

bigbird
Old 12-23-2006 | 07:26 AM
  #1389  
OldScaleGuy's Avatar
My Feedback: (2)
 
Joined: Dec 2005
Posts: 2,933
Received 7 Likes on 7 Posts
From: Reidsville, NC
Default RE: CMP Hellcat

Where did you find a drop tank for it? Thanks.
Old 12-23-2006 | 10:31 AM
  #1390  
bigbird007's Avatar
 
Joined: Jun 2003
Posts: 321
Likes: 0
Received 1 Like on 1 Post
From: Shelton, WA
Default RE: CMP Hellcat

Oldscaleguy,

Luke Zollner made a bunch of mods for this plane but he has no contact info. You can check out http://www.zollnermodels.com/ , I believe he sells on eBay occasionally or try posting here that you are interested, other than that I can't help.

bigbird
Old 12-25-2006 | 07:55 AM
  #1391  
Senior Member
My Feedback: (9)
 
Joined: Dec 2003
Posts: 200
Likes: 0
Received 0 Likes on 0 Posts
From: MERRIMACK, NH
Default RE: CMP Hellcat

Merry Christmas to all,


Does anyone have a close up of Luke's cockpit in a finished stage? I'm trying to wrap mine up, but I'm having a problem with the gunsight. Not quite sure how it goes together. If someone has a picture I would sure appreciate them posting it.

Thanks
Gary


Old 12-25-2006 | 10:02 AM
  #1392  
bigbird007's Avatar
 
Joined: Jun 2003
Posts: 321
Likes: 0
Received 1 Like on 1 Post
From: Shelton, WA
Default RE: CMP Hellcat

Gary,

check out post #1205 on page 49. If that doesn't explain it enough I'll post a picture of mine. It's done except for the weathering.

bigbird
Old 12-25-2006 | 04:10 PM
  #1393  
Senior Member
 
Joined: Feb 2006
Posts: 146
Likes: 0
Received 0 Likes on 0 Posts
From: Chugiak, AK
Default RE: CMP Hellcat

Bob,
Did you find a gasser that would work. I would like to go Gas on this bird and have a scale functioning exhaust made by Kelvin at Kelocast.

Let me know what you've found out.

Ben
Old 12-25-2006 | 07:09 PM
  #1394  
Senior Member
My Feedback: (9)
 
Joined: Dec 2003
Posts: 200
Likes: 0
Received 0 Likes on 0 Posts
From: MERRIMACK, NH
Default RE: CMP Hellcat

That's what I've been looking for! Thanks BB007. Time to get back to work.

Old 12-26-2006 | 03:20 PM
  #1395  
OldScaleGuy's Avatar
My Feedback: (2)
 
Joined: Dec 2005
Posts: 2,933
Received 7 Likes on 7 Posts
From: Reidsville, NC
Default RE: CMP Hellcat

Are there any decent mechanical retracts for this plane?
Old 12-26-2006 | 04:17 PM
  #1396  
Hellcat716's Avatar
Thread Starter
Senior Member
My Feedback: (2)
 
Joined: Sep 2003
Posts: 1,266
Likes: 0
Received 0 Likes on 0 Posts
From: Las Vegas, NV
Default RE: CMP Hellcat

No
Old 12-26-2006 | 04:30 PM
  #1397  
LDM
My Feedback: (15)
 
Joined: May 2003
Posts: 9,326
Likes: 0
Received 2 Likes on 2 Posts
From: Denver, PA
Default RE: CMP Hellcat

I have to agree , its not thing about mechanicals retracts , its that you will be pushing the maximum weight of what they can take with this plane . One bad landing and you will probably tear them out .
I dont know if the Horizon brand that is used in the H9 Hellcat could take the weight of this plane .
Old 12-27-2006 | 05:28 PM
  #1398  
 
Joined: Apr 2004
Posts: 1,859
Likes: 0
Received 1 Like on 1 Post
From: chesapeake, VA
Default RE: CMP Hellcat

Hello bigbird;
Here is my Cat with the mains and the retractable tail wheel installed.
Attached Thumbnails Click image for larger version

Name:	Bz78514.jpg
Views:	54
Size:	28.2 KB
ID:	584600   Click image for larger version

Name:	Id97811.jpg
Views:	43
Size:	50.9 KB
ID:	584601   Click image for larger version

Name:	Sx60521.jpg
Views:	56
Size:	40.9 KB
ID:	584602   Click image for larger version

Name:	Ga78048.jpg
Views:	47
Size:	42.6 KB
ID:	584603  
Old 12-27-2006 | 05:37 PM
  #1399  
Senior Member
 
Joined: Feb 2006
Posts: 146
Likes: 0
Received 0 Likes on 0 Posts
From: Chugiak, AK
Default RE: CMP Hellcat

Who's Retracts did you use. Looks great

Ben

Old 12-28-2006 | 09:36 AM
  #1400  
bigbird007's Avatar
 
Joined: Jun 2003
Posts: 321
Likes: 0
Received 1 Like on 1 Post
From: Shelton, WA
Default RE: CMP Hellcat

Looks great, did you make the tail wheel retract? How did you get it in there, also how are you closing the small gear doors.

bigbird


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.