RE: Great Planes Combat Corsair and Mustang  
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RE: Great Planes Combat Corsair and Mustang - 12/11/2007 4:04:02 PM   
root



Posts: 451
Joined: 11/20/2004
From: Manasquan, NJ, USA
Status: offline 		Nexxa,

I think I'll be alright as far as the weight goes since there won't be any landing gear or rudder added.

The only mods that will be adding weight would be the necessary 256 rod for the elevator, the heavier servos and the skid under the fuse to keep the crap off the head of the 32sx. Resulting in around an additional 2 or 3 ounces @ the most.

I can't see inside the wing to inspect the control set up for the ailerons like you did when you recovered your wing.

Is it strong enough to stand up to the additional torque needed for the anticipated high speeds?

Do you think I'll be okay with the one HS-225MG servo for both of the ailerons?

root



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RE: Great Planes Combat Corsair and Mustang - 12/11/2007 8:03:19 PM   
Gull_Wing


 

Posts: 1
Joined: 11/23/2005
From: DUBLIN, CA, USA
Status: offline 		I just purchased a new GP Combat Corsair and it has the worst covering job that I've seen. Lots and lots of wrinkles everywhere. I'm wondering if it will be possible to smooth them all out with an iron, or am I better off returning it to the dealer.

Please give me your comments / suggestions...

Thanks,
Gull_Wing

(in reply to root)
       Post #: 527

RE: Great Planes Combat Corsair and Mustang - 12/11/2007 8:41:49 PM   
root



Posts: 451
Joined: 11/20/2004
From: Manasquan, NJ, USA
Status: offline 		Gull_Wing,

The Corsair I just put together had a pretty crappy covering job ....I thought what the hey , I'll just apply the MAGIC of the heat gun to it...well, be REAL careful with the heat ...my gun shriveled it up in 2 spots and I had to magic marker the burnt spots cause the monokote didn't "take" to it.

The GP Combat Mustang I received yesterday has the same sort of wwwwwwwrinkles too. It's your call, but i think you just have to bite the bullet and realize that this is the main caveat besides the weak control rods.

It's still a pretty decent deal for under a C note.

If I were you I would apply the iron to the bad spots with the lowest setting and maybe even a sock to boot.

Crank up the heat until the covering responds and be willing to do it again at a later date....especially (according to an earlier post in this thread) in the summer when I heard it's more prone to wrinkle again.

hope this helps

root

_____________________________

"I should have zigged instead of zagged"

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       Post #: 528

RE: Great Planes Combat Corsair and Mustang - 12/12/2007 1:44:45 PM   
nexxa


 

Posts: 125
Joined: 11/19/2004
From: Montreal, QC, CANADA
Status: offline 		All the mods discuss about in this tread was on my first one.
First I flew it stock, after 3 or 4 flights I lost one ailerons and half of the elevator in the air.
During the winter I decide to revise all, dual ailerons servos, bigger rod for elevator, carbon.... new covering, wheels! At the end the plane came out maybe 10 oz heavier. A real pain to hand launch.


My second Mustang, I assemble it in a weekend, and I didn’t start a thread with this one. Here the mods I made: (not really modifications, it’s more like: additional care to!)

- Review all joins in wing and fuselage with thin CA (glue the ailerons, elevator, rudder first before putting CA everywhere). Revise the firewall with epoxy.

- Use standard CA hinges, not these provide in kit

- Use metal, ball bearings servos for ailerons and elevator. Hitec 225 will do the work without trouble. If I made a season with my cheap SL300 (plastic, no ball bearings, no high torque) the Hitec will do the work easily.

- Reinforce with one or two layer of fiber glass and epoxy the cowling (bottom). Prevent crack on landing. Or install a skid to protect engine head, carb and cowling on landing.

- Elevator, the one you will put the control horn, add a ply or fiber glass under the control horn. Cover a bigger surface to distribute the stress. With time, the control horn will come of with a part of elevator. This mod, I didn’t do it! That’s why there is no more Mustang!!

For the CA (review all joins). I do this on all my models. Habitually I shrink the covering to remove all wrinkles, install all the control surface. Before gluing the wing half together, I drop CA inside and play with the wing to make it run everywhere. Same for the fuselage.

The wing on the Mustang is well built and strong. I abuse them a lot and they never broke apart.

Have fun...


< Message edited by nexxa -- 12/12/2007 1:49:47 PM >

(in reply to root)
       Post #: 529

RE: Great Planes Combat Corsair and Mustang - 12/12/2007 2:36:29 PM   
ARF Guy


 

Posts: 115
Joined: 10/18/2005
From: Prescott, AZ, USA
Status: offline 		I'm still flying my Corsair after nearly 3 years. I used the STOCK hardware BUT the fuel tank did split and I ended up recovering the fuse from the canopy forward and the wing saddle to the gull bend. I used real MonoCote and a real close match. I washed the wood down with denatured alcohol and the covering looks as good as new. The factory covering is some low temp stuff. If I had known then what I know now, I would have sprayed every square inch, inside and out with clear (for shiney) or flat clear polyurethane.

I fly with a Magnum .30 4 stroke and use Hytech 81 servos with no problem. I put gear and a working rudder on mine and have in excess of 300 flights. It's a nice scale-looking warbird and it was not intended to fly Mach 2 with a pound of screamming .46 bolted on the front. If you deviate from its intended purpose you must modify or have a very short lifespan. I guess I'm puzzled as to why anyone would want a scale plane to fly like a seagull on meth, but to each his own. I just tossed my two cents in because I know if the plane is powered and flown as intended most of the stock hardware and recommended servos work fine and lasts for years.

See action shots of my plane on pages 7 or 8 and 14.

ARF Guy

< Message edited by ARF Guy -- 12/12/2007 2:47:23 PM >

(in reply to nexxa)
       Post #: 530

RE: Great Planes Combat Corsair and Mustang - 12/13/2007 6:23:34 AM   
root



Posts: 451
Joined: 11/20/2004
From: Manasquan, NJ, USA
Status: offline 		For me and a few other of my flying buddies, there's something about climbing high enough to be able to come down the center of your clubs field at a 45 degree angle with a wide open throttle and watching YOUR plane rrrrrrriiiippppp by you the fastest it can go that takes the place of flying 3D or flying in a scale like manner.

To be able to do that, you must overpower your plane. The Great Planes Combat Corsair and Mustang are cheap enough, small enough, and don't need a real expensive engine to be able to do this.

It's also a really cool, absolute blast and MAJOR part of this hobby FOR ME to b-a-s-h- a kit or ARF to its utmost speed potential by reading these forums and finding out what others have done and borrow their ideas, techniques,choice of hardware, fuel blends etc., etc., to be able to do this. Even if they were meant to be a "scale plane".

The last thing we all want to do is crash something we spent hours and hours and hours on in order to get it just right so we can accomplish what we want to accomplish. Whether it be flying scale and listening to the comments in the peanut gallery behind us or flying 3d and hovering right off the deck in the solitude of the evening or early morning without a soul in sight, or just flying with speed as the main concern.

So...flying fast is fun and the GP Corsair and Mustang CAN fly fast if overpowered, so they are.

root aka Bob G.

p.s. "Like a Seagull on Meth" ....I love it.....Hey Arf Guy, Do I have your permission to use that?

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"I should have zigged instead of zagged"

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RE: Great Planes Combat Corsair and Mustang - 12/13/2007 1:21:37 PM   
ARF Guy


 

Posts: 115
Joined: 10/18/2005
From: Prescott, AZ, USA
Status: offline 		Like I said, to each his own. That's what makes this sport so appealling! Besides, the ARF and kit makers love it!

"p.s. "Like a Seagull on Meth" ....I love it.....Hey Arf Guy, Do I have your permission to use that?"

Permission from WHO? As a free 'merican livin' in 'merica, I don't ask NO BODY for NO permission for NUTHIN'!

Fly fast, land safe!

ARF Guy

(in reply to root)
       Post #: 532

RE: Great Planes Combat Corsair and Mustang - 12/25/2007 9:52:36 AM   
longdan



Posts: 462
Joined: 10/18/2006
From: Auckland, NEW ZEALAND
Status: offline 		Oh boy. Under the tree this morning was a large box. I opened it up and there was this beautiful work of art in the form of a GP Combat Corsair . Another smaller box contained an ASP .25 engine. My family must know me too well.
Can't wait to get to work on this. I've read through this entire thread picking up all the great ideas and advice. Hopefully I'll have it in the air in a couple of weeks.

(in reply to ARF Guy)
       Post #: 533

RE: Great Planes Combat Corsair and Mustang - 12/25/2007 1:19:17 PM   
ARF Guy


 

Posts: 115
Joined: 10/18/2005
From: Prescott, AZ, USA
Status: offline 		A Merry Christmas indeed!

Enjoy.

ARF Guy

(in reply to longdan)
       Post #: 534

RE: Great Planes Combat Corsair and Mustang - 12/25/2007 2:37:28 PM   
root



Posts: 451
Joined: 11/20/2004
From: Manasquan, NJ, USA
Status: offline 		longdan,

I second that...MERRY CHRISTMAS....and don't forget to maiden that Corsair with the largest diameter prop for the greatest amount of pull-out/thrust ...just in case she torques horrendously to the left like mine (and others from this thread) did... also, a couple of degrees of extra right thrust washers added to the firewall wouldn't hurt.

root

ps. I added 1&3/8" invasion stripes to the top of the wing to be more visable and also a little more "scale-like" - soon to do the same for the bottom, what do you think?



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< Message edited by root -- 12/25/2007 4:53:37 PM >

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"I should have zigged instead of zagged"

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       Post #: 535

RE: Great Planes Combat Corsair and Mustang - 12/26/2007 10:56:39 AM   
longdan



Posts: 462
Joined: 10/18/2006
From: Auckland, NEW ZEALAND
Status: offline 		Root- Thanks for the tip. I think I've got a MAS 10x4 prop somewhere that I could use. I'll see how the chinese engine likes it when I run it in.
More right thrust? Ok, I'll give it a try. It already looks to have a lot, but I saw earlier in the thread that a lot of planes would torque to the left on launch. I'm not doing the rudder mod on mine (yet), so I guess I can always take the washers out if it wants to fly in circles, or after I learn to deal with the left-torque.

Progress so far - glued wing halves together, installed ailerons, ironed out wrinkles in covering, sanded inside of cowl in lieu of reinforcing with glass. Question here- should I glass the inside of the cowl now or wait until the ply ring is glued in? It's a pretty tight fit in there and another layer of glass may be too much. My thought is to wait until the ring is installed.
I have also sprayed the inside of the fuse with clear polyurethane for fuelproofing.

I can't get over how good this thing looks

I won't bother to post any pics, since they are all the same. Might put up one when it's finished.

Those invasion stripes on your P51 are just the thing to finish it off. Makes it look way more authentic.

(in reply to root)
       Post #: 536

RE: Great Planes Combat Corsair and Mustang - 12/27/2007 6:16:00 AM   
longdan



Posts: 462
Joined: 10/18/2006
From: Auckland, NEW ZEALAND
Status: offline 		I've been thinking long and hard about what to do about the weak horizontal stab. I have some 3/8" wide thin carbon ribbon stuff that I will try to attach to the underside of the stab. If I slit the covering, I might be able to slide it in under the covering with some CA, then iron it all down again and hopefully it won't be too noticeable or add so much thickness that the stab won't fit in the slot. If it works, I'll post some pics.


< Message edited by longdan -- 12/27/2007 11:06:29 AM >

(in reply to longdan)
       Post #: 537

RE: Great Planes Combat Corsair and Mustang - 12/27/2007 2:42:38 PM   
root



Posts: 451
Joined: 11/20/2004
From: Manasquan, NJ, USA
Status: offline 		I doubt you'll be able to re-iron the covering........it really stinks.......definatley NOT standard monokote....more like low heat stuff.........just plan on recovering the cut ....I used low temp econokote that i had lying around when I did my invasion stripe add-ons. Good Luck.

root




< Message edited by root -- 1/7/2008 5:43:28 AM >

_____________________________

"I should have zigged instead of zagged"

(in reply to longdan)
       Post #: 538

RE: Great Planes Combat Corsair and Mustang - 1/1/2008 2:00:36 AM   
root