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GROUP BUILD - Top Flite Giant Scale F4U Corsair

Old 03-23-2016, 06:36 AM
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One more comment to bad T/F does not just kit the ARF parts, any one with the ability to build the kit would have no problem building one, after seeing one stripped down and glassed, but then again if I was going to build another I would look up Chad's group they did a scale one and I think they even had lazer cut parts for most of the build. But as I recall they gave up, or moved to Scale Builders site

Cheers Bob T
Old 03-23-2016, 01:38 PM
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I was surprised when I first saw how different the kit and arf versions are. I would think financially it would make
more sense to keep them as close as possible.
Old 03-24-2016, 07:14 AM
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I should probably change my name to Mr. Questions... anyway, here's another.
I know this thread is now close to a decade old and it seems most everybody was using some sort of isolations mount with their engine. My experience in the past has been with big aerobats and DA engines and the feeling was isolations mounts caused more problems than they solved. I have zero experience with a G62 other than taking it out of the box so far. So what's the current feeling on isolation mounts and G62's? I was planning on bolting directly to the firewall with a B&B mount(1/2" aircraft ply and pinned with wood dowels)
thanks
Old 03-24-2016, 08:05 AM
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Steve
First if you watch most large CC single cylinder engines, at low RPM's they tend to shake doe to the way they have to be balanced to get performance, ( statement is simplified on purpose ) that said my experience is limited to the G-62 these engines were originally purposed for chain saws and the like, so vibs were not a concern, same as the roper engines, So back in the day when the bird was sitting on the ground so several outfits came up with shock mounts (all cars and nearly all small aircraft are rubber mounted) so it made sence to me. On my first Corsair I just followed what the plans said.
Then I still had to add about 1 lb. of weight to balance, and with the cowl mounted per plans the cowl did not last to long so I now mount mine at 4 points 12,3,6,and 9 and the wholes still seemed to wallow out, had a nose over on landing and dinged the cowl and the extra weight in the chin of the fuse came lose with it on the bench and just looking at it I decided to get rid of the weight in the fuse and use the steel plate . like I said it has worked great for me , the plus I did not expect was the dampening effect it had on the airframe at low RPM's

But the above is just me and my experience

Cheers bob T
Old 03-25-2016, 05:46 AM
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Hi, my new TF giant corsair comes without a fuel tank. What shape, size do you recommend for me??
manual doesn't say nothing about fuel tank
alex
Old 03-25-2016, 07:36 AM
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Alex I would contact Top Flite and ask what size they recommend. Mine came with a fuel tank. Where my TF Mustang came with a 32oz. Dubro. At least a 24 to 30 oz. would be best. John Taylor Corsair Brotherhood # 96
Old 03-25-2016, 08:14 AM
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Thanks John, my primary concerned is about it's shape. The plane former where the fuel tank goes through has a kind of shape, I really don't know if there is a special tank shape for that particular plane
Old 03-25-2016, 01:31 PM
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Originally Posted by labebe
Hi, my new TF giant corsair comes without a fuel tank. What shape, size do you recommend for me??
manual doesn't say nothing about fuel tank
alex
Hi Alex Are talking about the ARF or the kit to complete different things, also it would be good to tell what engine you are planning on, ie: Gas or Glow single or multi cyl makes a big on fuel burn.

Cheers Bob T
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Old 03-25-2016, 03:30 PM
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Planning to install OS GT 60 gas engine single cylinder, my Corsair is the ARF version. Do you know what fuel tank ussualy comes with the ARF ???
Old 03-26-2016, 04:06 AM
  #10185  
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Lebebe
I personally have no experience with the Gt 60 but The manual should give some info, I have G-62's and with 18 oz tanks I get about an 8 min flight, with 2 go arounds if necessary, and for this old geezer that is plenty.
If I was looking for a tank I would be looking a the "roto-gloe" I have several friends with them and they really love them, and I may just pick one up at Toledo coming up.

So if the instructions give you the location just modify the inards to suit would be how I would do it.

Hope this helps

Cheers Bob T
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Old 03-26-2016, 07:20 PM
  #10186  
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Hello all,
I'm running a G 62 with a 24 oz. tank
just my 2 cents.
Old 03-27-2016, 06:59 AM
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I sent Top Flite an e mail, let's see what they say. Another concerned, is about the robart fork tail retract that the manual recommends, I really don't like it. It doesn't looks scale for the plane. I like much better the Hangar 9 (HAN 476024). Does anybody have install it, I mean n the top flite ARF version??? Any suggestions?? Any other alternative???
Old 03-27-2016, 01:58 PM
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Hi labebe
Look in post # 1 at the index and some ware in there is how to make your own scale assembly or an addy for a fellow that made some kits,
To much going on at the moment but I will lock and see if I still have his plans, will try to get back to you by Tuesday next

Cheers Bob T
Old 03-27-2016, 02:01 PM
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PS as I remember in the retract section

Cheers
Old 03-27-2016, 05:08 PM
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Well it's been a good couple of days. Flaps are done and working great. I'm going with an external control horn to move them.
Happy Easter all!
Old 03-27-2016, 07:35 PM
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I LABEBE
.There is a thread 1/6 scale F4U Corsair that will give you heaps of info on a making a scale tail wheel. I got a plan off Chad V awhile ago he is extremely helpful.The plan gives you a material list and sizes of materials needed.
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Old 03-28-2016, 04:23 AM
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that's the one I was thinking of, and there is a fellow out in Washington that made one for this size

Good luck Bob T
Old 03-29-2016, 03:47 AM
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Does anybody out there have a copy of the High Flight magazine from years ago that featured the Corsair build? I've searched in the past and was never able to find it. Perhaps someone in the brotherhood could copy the pages for me? thanks
Old 03-29-2016, 12:12 PM
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I probably have it, I have all of them back to about 1990, and some from before that. If you can tell me approximate date I could probably find it faster.
Old 03-29-2016, 12:30 PM
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Originally Posted by raaf
I LABEBE
.There is a thread 1/6 scale F4U Corsair that will give you heaps of info on a making a scale tail wheel. I got a plan off Chad V awhile ago he is extremely helpful.The plan gives you a material list and sizes of materials needed.
Plan is based on the design by Earl Aune but has been modified some to make it more scale. Earl is the "fellow out in Washington" mentioned by Bob T. and he may still offer the fully built and painted tail gear. His work is outstanding and well worth his asking price. If you want to make your own the plans are available for the asking but, be prepared, it is a substantial project in its own right. Not hard but time consuming. It is primarily constructed from PC board along with various sizes of brass and aluminum tube and angle stock. Plans show two different options for the shock absorber, one requires machine work while the other does not. I'm not sure any shock absorption is absolutely necessary and it could probably be replaced with a fixed arm.
















Last edited by Chad Veich; 03-29-2016 at 12:39 PM.
Old 03-29-2016, 02:14 PM
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Thanks Rick, I believe it's Spring 2001 Vol 22 no1. I'll have to try to find reference to it in here somewhere. I know last year when I first started following this thread this issue was mentioned several times.

I purchased a tail wheel from Earl about a year ago so at that time he was still making and selling them.

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Old 03-29-2016, 02:31 PM
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[QUOTE=Chad Veich;12195957]Plan is based on the design by Earl Aune but has been modified some to make it more scale. Earl is the "fellow out in Washington" mentioned by Bob T. and he may still offer the fully built and painted tail gear. His work is outstanding and well worth his asking price. If you want to make your own the plans are available for the asking but, be prepared, it is a substantial project in its own right. Not hard but time consuming. It is primarily constructed from PC board along with various sizes of brass and aluminum tube and angle stock. Plans show two different options for the shock absorber, one requires machine work while the other does not. I'm not sure any shock absorption is absolutely necessary and it could probably be replaced with a fixed arm

I and a little a good will add with a little time a good reliable shock can be made with brass tubing and bar stock, requires a little mech/engineering I lost my sketches with my last hard drive crash, after the 5 th. of next month I may have some time to try to re draw them
Justo much on my plate for a bit.

Cheers Bob T
Old 04-03-2016, 06:18 AM
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I wasn't happy with the way I shaped the wingtips.. too rounded on the top side. Sooooo, the wings went under the blade last night. Cut the tips off and shaped some new blocks and glued them in place. Will try again today for a more scale shape.
Unfortunately I started this build years ago before finding any of these great build threads. I didn't change the shape of the outboard wing ribs so I'm still going to have the too steep of an angle from the bottom up to the tip.
After that I think I'll put the wing aside for awhile and go back to working on the fuse, tail feathers and hanging the engine.
Old 04-05-2016, 05:25 AM
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Steve

When I built my second one I started the taper from the second rib from the tip rib, the amount taken off the ribs at the crown, ( tip about 5/32 , second rib about .3/32 ) and for the sheeting I did a lap splice in the middle of ribs 2 & 3 from the tip, If yo use the stock sheeting it gete a bit thin but it is all you need when glassing.

Good luck cheers Bob T
Old 04-05-2016, 05:34 AM
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Hi
Trying to figure battery size

Would like to use a single a123 with IBEC to control both receiver/servos and electronic ignition on a zenoah G62 (converted from magneto) I am using robartt electric retracts too.

I have available a 2500 mah is that ok?

If I need a larger battery I'm thinking I might as well eliminate the IBEC and go with 2

Thoughts?

Thanks
Larry

Last edited by phakur; 04-05-2016 at 05:36 AM.

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