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Top flite spitfire

Old 10-05-2018, 06:23 PM
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xxl
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Default Top flite spitfire

I found a top flite spitfire kite always love spitfire. I flew my h9 spit for a bit love that one flies great. Now it's time for a top flite one thinking o s 91 for engine.. looking for the cockpit detail kit and thinking what retracts to put in it.. I might not get a chance to fly it. Don't have many good spots to fly what did you guys use in yours?
Old 10-06-2018, 05:53 AM
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I have a Saito FG20 installed and Robart air retracts with struts, no cockpit kit. AUW 10lbs 8

ozs, flys great and looks and sounds awesome in flight!
e
Old 10-06-2018, 09:59 AM
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I forgot to mention I changed the wing dihedral to the correct 6 degrees from what the stock kit dihedral has.






Old 10-06-2018, 04:25 PM
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xxl
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What's the part number for the retracts you used. I think they recommend 605 Robert but those are wire retracts I'd rather have the air struts
Old 10-06-2018, 05:54 PM
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Originally Posted by xxl
What's the part number for the retracts you used. I think they recommend 605 Robert but those are wire retracts I'd rather have the air struts
The retracts are Robart # 605 with the wire legs removed and replaced with Robart # 650 3/8 diameter straight struts, see attached link.

https://robart.com/collections/robos...ight-robostrut
Old 10-11-2018, 09:45 PM
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xxl
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Might run a o s 91 four stroke
Old 10-13-2018, 08:22 PM
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What spinner did you use?
Old 10-14-2018, 11:45 AM
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Originally Posted by xxl
What spinner did you use?
Dave Brown 3-1/2" standard spinner.
Old 10-15-2018, 11:15 AM
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I am in the process of balancing my Spitfire an of course it is tail heavy.. how did you go about balancing yours and where did you fasten the weights? How much did it take.?
Thanks,Bob
Old 10-15-2018, 03:56 PM
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Originally Posted by copelab
I am in the process of balancing my Spitfire an of course it is tail heavy.. how did you go about balancing yours and where did you fasten the weights? How much did it take.?
Thanks,Bob
Hello copelab; I balanced the Spitfire IAW the manual recommendation at 4-1/8". It took 154 grams (5-1/2ounces) of lead to achieve 4-1/8" balance point. See attached photo for lead weights attachment location.
Old 10-15-2018, 04:27 PM
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Thanks Forces.nice neat install.mine needs a lot more than that.
Bob
Old 10-15-2018, 06:11 PM
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Originally Posted by copelab
Thanks Forces.nice neat install.mine needs a lot more than that.
Bob
Bob, if you install a nitro/glow engine you will be adding up to or more than 16 ounces of lead weight. That was the main reasons I went with the heavier Saito gas engine, less dead weight to achieve 4-1/8" CG.

Roger
Old 10-15-2018, 07:14 PM
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Thinking of going 0s 95 in mine just want to hid the muffler
Old 10-16-2018, 03:25 AM
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Originally Posted by xxl
Thinking of going 0s 95 in mine just want to hid the muffler
If you can find a header and muffler that hides inside the cowl that fits the OS 95, that would be great. That was my intention with the Saito 100, to hide the muffler inside the cowl but the cowl was far to narrow to hide the 90 degree header and muffler. Also a lot of dead lead was still required to meet the 4-1/8" CG. So I opted for the Saito FG20, even though the muffler is sticking out of the cowl, I needed far less dead weight to meet the CG.


Last edited by ForcesR; 10-16-2018 at 04:55 AM. Reason: word addition
Old 10-16-2018, 05:11 AM
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Any one have muffler suggestions ?
Old 10-16-2018, 01:24 PM
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Yes to the weight Roger.I have already added a 14oz block of lead and the tail is still down.
Bob
Old 10-17-2018, 06:53 PM
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Has any one ran a 61 2 stroke in this plane?
Old 10-18-2018, 05:18 PM
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I stuffed a DLE 20 in mine. Even with that I needed nose weight. It is glasses and painted with latex and flies great at 11.5lbs. She is not a floater but is a blast to fly. It is a rocket with the DLE.
Old 10-18-2018, 06:01 PM
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thinking

75AX ABL for the engine

Old 04-02-2019, 06:54 PM
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So 75 or 65 is engine ?
Old 04-03-2019, 05:32 AM
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mine has a motor on it. assuming yours is stock I would go 60 route. my reason for saying that is most 75's (if not all) are bored out 60's so if you have a prop that can deliver the extra power to the air you are stuck with a slower rpm (because of the added mass of a bigger cylinder, at the same stroke) motor that burns more fuel.

Joe

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