RE: CMP Hellcat  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> RE: CMP Hellcat
Page: <<   < prev  74 75 [76] 77 78 79 80 81 82 83   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: CMP Hellcat - 1/21/2008 3:48:13 PM   
Hot Rod Todd



Posts: 441
Joined: 10/14/2002
From: Cedar Rapids, IA, USA
Status: offline 		I repainted my CMP Hellcat also. The three color scheme really makes it look good. I just painted right over the stock paint, then used some spray can Polyurethane to make it fuel proof. It has been holding up well and is about as easy as it gets.



Attachments
Click to see fullsize image.
Click for fullsize

(in reply to Vintauri)
       Post #: 1876

RE: CMP Hellcat - 1/21/2008 4:11:11 PM   
Shubova


 

Posts: 225
Joined: 8/21/2005
From: Upland, CA, USA
Status: offline 		Looks good! Very interesting…what kind of paint did you use? Won’t the paint on the wings crack when the covering flexes? What about the extra weight you just added? Just curious!

And for the guy that was talking about glassing, what is the procedure for that? Does it involve removing the covering?

Thanks,
Shubova

(in reply to Hot Rod Todd)
       Post #: 1877

RE: CMP Hellcat - 1/21/2008 4:32:07 PM   
Vintauri



Posts: 107
Joined: 4/19/2004
From: Mankato, MN, USA
Status: offline 		Yes it involves pulling the old covering off. I'll try to take some pics of what I'm doing.

Steve


_____________________________

Steve

(in reply to Shubova)
       Post #: 1878

RE: CMP Hellcat - 1/21/2008 4:35:29 PM   
Hot Rod Todd



Posts: 441
Joined: 10/14/2002
From: Cedar Rapids, IA, USA
Status: offline 		Since I was going over it with Polyurethane I could use regular testors paint. I even was able to get the proper colors for the three-tone in model masters and used an airbrush to spray it. The weight added is minimal, since I used all of the stock covering. If you fiberglass the wings you will add some weight, but the plane flies fairly light so the added weight is not a problem. I can't speak for people that put some type of heavy gas engine in the nose though, since I used a Saito 1.20.



Attachments
Click to see fullsize image.
Click for fullsize

(in reply to Shubova)
       Post #: 1879

RE: CMP Hellcat - 1/21/2008 4:38:54 PM   
Hot Rod Todd



Posts: 441
Joined: 10/14/2002
From: Cedar Rapids, IA, USA
Status: offline 		Forgot to mention, I have never had any problems with paint cracking when sprayed onto fabric covering. I have used everything from testors to Krylon with the matt finish Polyurethane on top with no problems.



Attachments
Click to see fullsize image.
Click for fullsize

(in reply to Hot Rod Todd)
       Post #: 1880

RE: CMP Hellcat - 1/21/2008 5:16:27 PM   
Vintauri



Posts: 107
Joined: 4/19/2004
From: Mankato, MN, USA
Status: offline 		The fabric covering does take paint really well. If you got a clone of the CMP like I did you'll have the plastic covering and it is junk. The paint will chip right off. Thus the glass and zpoxy treatment. I pulled all the covering off and filled in a few imperfections with balsa filler. After that dries you can sand it smooth. Make sure all the dost if off. I used .5 oz cloth as I'm not needing to add so much strength and it will keep it light. Cut the cloth to size and then set it aside. Then mix up your zpoxy and coat the surface of the wing. Now place the cloth over the wing and use a flexible card like the maxxed out credit card from buying the retract to squeegy out the excess resin and to smooth the cloth out. You dont' want any wrinkles or bubble in the cloth. Make sure the ends are soaked and then let it dry. Now you can come back a trim off the overhang of cloth and then do a light sanding to knock down the high spots. Some people will prime at this point and then sand down to find any low spots. Either way you'll need a second coat to fill in the weave and allow you to sand to a smooth finish.

This is a brief description of the process and there are better descriptions out there. You can also use other resins depending on weight allowance and materials used. If galssing direct onto foam I would use a water based polyurethane first.

I'll still post some pics once I get a chance to take some later today.

Steve


_____________________________

Steve

(in reply to Hot Rod Todd)
       Post #: 1881

RE: CMP Hellcat - 1/21/2008 5:18:15 PM   
warbird51


 

Posts: 470
Joined: 2/27/2002
From: Newark, CA, USA
Status: offline 		Here is a picture of my CMP Hellcat. It's powered by a Saito 120 with Serria retracts. It's a great flying warbird.



Attachments
Click to see fullsize image.
Click for fullsize

(in reply to Hot Rod Todd)
       Post #: 1882

RE: CMP Hellcat - 1/21/2008 5:46:18 PM   
gnirwin



Posts: 804
Joined: 6/4/2003
From: Doylestown, OH, USA
Status: offline 		It's the CMP version. The Canopy is not stock and I tried to go cheap and bought the Hanger 9 retracts (good observation) I am in the process of changing the retracts to Robart (might be a little better) I added more panel lines to the fuse and also added panel lines to the wings using chart tape and painting over the tape with a couple coats of primer. I also added rivet details to the entire plane and even though it's sport scale I'm real happy with the added scale details. I was going to spray with enamel paint but I changed my mind and went with Tamiya paint, what a great product , no clean up and the qualty of the spray cans is very good.

_____________________________

even a nut can find a blind squirrel every now and then

(in reply to Vintauri)
       Post #: 1883

RE: CMP Hellcat - 1/21/2008 6:01:38 PM   
Shubova


 

Posts: 225
Joined: 8/21/2005
From: Upland, CA, USA
Status: offline 		First, you spoke of clone. I’m not sure what you are talking about. The guy that I got it from bought it from Nitro Planes. Isn’t CMP Nitro Planes? I paid $225 for the plane (NIB) and a set of Century retracts at the AMA show here in Ontario, CA
Second, I was talking to the guy that I bought it from and went to his shop. He has been building for about 30 years and has done a lot of scratch builds. I have seen his work and it’s impeccable. He told me that weight is an issue in most war birds and that a 91 engine is more than enough power for this plane.
I don’t remember his exact words but he said that even the full scale war bird have a tendency to wobble (the tail pitching back and forth) a little and when you over power it, it increases the wobble and landing problems.
Has any one tried a 91 in this plane?

Shubova

(in reply to warbird51)
       Post #: 1884

RE: CMP Hellcat - 1/21/2008 6:12:19 PM   
Vintauri



Posts: 107
Joined: 4/19/2004
From: Mankato, MN, USA
Status: offline 		a .91 two stroke is probably good as it would be close tot he 1.20 4 stroke saito. However I would look at the other people's posts in here to see what worked for them. Weight is an issue but CG is more critical and many had to add weight in the nose to balance it properly. Most would rather add useable weight in a larger engine then just dead weight.


_____________________________

Steve

(in reply to Shubova)
       Post #: 1885

RE: CMP Hellcat - 1/21/2008 6:19:40 PM   
Hot Rod Todd



Posts: 441
Joined: 10/14/2002
From: Cedar Rapids, IA, USA
Status: offline 		Nitro Planes is a distributor, CMP is a manufacturer. Nitro planes sells some CMP, some clones. Indeed weight is always a factor for warbirds, but with this plane you need some nose weight anyway. A 1.20 or 1.25 seems just about right, and is not overpowered. I would think a .90 Four stroke on this plane would be weak. Yes, it would fly scale, but extra power can help you out of many jams that would have the plane crash with scale power. A .90 two stroke would have enough power, and has been used in magazine reviews that I have read when used with a bunch of lead in the nose, but the larger four stroke is the way to go.

(in reply to Shubova)
       Post #: 1886

RE: CMP Hellcat - 1/21/2008 7:36:34 PM   
Shubova


 

Posts: 225
Joined: 8/21/2005
From: Upland, CA, USA
Status: offline 		Good stuff, Thanks
I have a OS 91 4 stroke and Saito 120 4 stroke but my feeling is the same as yours. I think I'll use the 120.

So what's benefit of glassing...strength?


Shubova

(in reply to Hot Rod Todd)
       Post #: 1887