Help with engine choice for a Giant TF Corsair  
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All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> Help with engine choice for a Giant TF Corsair
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Help with engine choice for a Giant TF Corsair - 6/10/2002 9:41:42 PM   
sagacity


 

Posts: 209
Joined: 6/2/2002
From: Piedmont, CA, USA
Status: offline 		I'm having trouble reducing filesize of my pictures. I have not had nearly enough coffee yet. I don't have photoshop, and am using a crap program that came with my camera. Boo.

I'll get them up.

If you think you'll want the cockpit, do it now. If it's similar to the Corsair, you'll be dropping the floor to accomodate the full depth cockpit, something you won't want to retro in. Relax on the detailing. Just get the basic colors right and spend a little time getting the little instrument panel pieced together right, and it looks swell. Testor's makes a Zinc Chromate Green that looks super mixed two parts ZCGreen to one part yellow, thinned and airbrushed in all the wells and as the back paint for the cockpit. It took me two small bottles of ZCGreen and one of yellow, and a few ounces of lacquer thinner. I sprayed out all the openings, including flap and aileron servo bays, the fuse hardware bay, the tailgear and main gear bays. I'll be adding panel lines with a sharpie, maybe, just the macro lines that would appear in stand-off scale, but that's about it. I like to play the balance between model and real, not minding a glass smooth look to accentuate the 'toy' aspects...

greg

(in reply to Sundowners)
       Post #: 26

Help with engine choice for a Giant TF Corsair - 6/12/2002 6:46:22 AM   
sagacity


 

Posts: 209
Joined: 6/2/2002
From: Piedmont, CA, USA
Status: offline 		Here's that shot of the cheater hole.

greg

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(in reply to Sundowners)
       Post #: 27

Help with engine choice for a Giant TF Corsair - 6/12/2002 7:04:41 AM   
Scott G


 

Posts: 342
Joined: 1/25/2002
From: San Diego, CA, USA
Status: offline 		Also I posted a pm to you about the construction pictures, putting one here in case you missed it. I would appreciate copies whenever you get some free time...

Thanks in advance,
Scott

(in reply to Sundowners)
       Post #: 28

F4U - 6/12/2002 7:19:47 AM   
Lee Belew



Posts: 440
Joined: 3/13/2002
From: Sugar Land, TX, USA
Status: offline 		Sagacity I have been looking with great interest to the photo of your corsair. I have one. The wing is framed and the top of the Fuselage is framed. It will be a few months before I will get back on it. However the info and photos you have put up here will be of great help. Also seeing your plane in the finished conditions has renewed my interest to complete mine.
I do have one question I would like to ask you and anone whose has built one of these. I purchase my Corsair just after the kit came out. And I purchased a pair of Jet retracts. Have I really made a bad mistake.Should I bite the expensive Bullit and get a set of Robarts. The Jets appear to be stronger than the Robort. I have a set of gear for a Byron AT6 to compaire. " another airplane I need to build or sell. Anyone want an Original Byron AT6"?
Sagacity would It be okay if I email you when questions arise during my construction?
Lee

(in reply to Sundowners)
       Post #: 29

F4U gear doors - 6/12/2002 5:34:59 PM   
snyder_man


 

Posts: 122
Joined: 2/17/2002
From: Springfield, OH, USA
Status: offline 		Can anybody send me the outline of the gear door? I don't have the plans and I want to add the doors to mine. I will gladly pay for postage and your time. How do they attach? I have robarts.

[email]snyder_man@hotmail.com[/email]

_____________________________

It's tough when you have caviar tastes but only a filet-o-fish budget

(in reply to Sundowners)
       Post #: 30

Help with engine choice for a Giant TF Corsair - 6/12/2002 8:04:39 PM   
sagacity


 

Posts: 209
Joined: 6/2/2002
From: Piedmont, CA, USA
Status: offline 		I don't know about the Century Jet retracts, but I'm not going to knock them either. I will give you the advice I got as I sought information about this plane: Build thoughtfully in the gear area.

On the gear door question, the sketch on the plans is for a static display door only. The Robart gear does not have the attach point for the gear hing as do the similar ones for the P-51. Why do I think that the gear doors on this model are just a little more drag than this model can handle on approach? More as we flight test.

You'll note that one of the posts above is from the guy whose name is on your set of plans, so maybe we can get even more help here, and a critique of my workarounds. :-)

Right from the get-go, I learned that this plane is hard to fly, just like the real one, and that low and slow flight and ground handling are the bugaboos. Along with all this advice came the tales of the plane coming in hard and forward (on the mains as opposed to a more flared three-point touchdown) and simply shearing the gear off.

Now, LOOK AT THE PLANS. Is this a designed breakaway point built in? It is certainly a weak point. My plane sits on the ramp with empty tank and no pilot at 25 pounds 4 ounces exactly, all sitting on that birch rail tucked into that recess in the ply(WOOD) rib, at the point of maximum stress (wing curve) and weakest structure (wood attach point, gear cut-out in spar).

Needless to say, I did not leave it that way. IMPORTANTLY, I believe, neither did I redo it in Iconel-X. Grace must prevail!

I started with 4ga wire pins. This can be retro-ed easily. Drill holed through the gear rail into the rib, inserepoxy coated wire, snip off, cure, grind, touch-up, done.

Gussets came next. This is best done with the frame open, but retro in what you can. Everywhere. Both 'gear' ribs, LE, spar and TE. Both gear ribs' neighbors, same thing. You're going to whack the crap out of the structure when you cut that gear hole. Gussett the joints now and the cut-out flushes them up automatically.

I did not go nuts with glass and epoxy, because I was afraid If I made the thing too rigid, I,d just transfer the load somewhere else rather than absorb it, but there are a few slivers here and there, especially as thin gussets where a wood one would look bad, and to beef up the gussets at the spar connections.

Check this photo out.

What a trip down memory lane to see all that sheeting again.

greg

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(in reply to Sundowners)
       Post #: 31

Help with engine choice for a Giant TF Corsair - 6/12/2002 8:11:08 PM   
sagacity


 

Posts: 209
Joined: 6/2/2002
From: Piedmont, CA, USA
Status: offline 		Hey, Lee, here's where you're headed!

Hope it's not months as you fear.

Cheers!

greg

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(in reply to Sundowners)
       Post #: 32

corsair - 6/12/2002 9:30:57 PM   
Lee Belew



Posts: 440
Joined: 3/13/2002
From: Sugar Land, TX, USA
Status: offline 		Greg thanks for the extra photos and the encouragement
[email]leebelew@wt.net[/email] Lee

(in reply to Sundowners)
       Post #: 33

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