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Jan 30, 2016, 11:45 AM
I74
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Vintage Simprop Optima F3B find.


Am picking up a vintage early 80's, ''pristine'', Simprop optima ARF kit, that belonged to the ''renowned'' late Scott Christensen.
Figured that I better start this thread here, because I didn't think that it would be appropriate in the competition forums, because of the age.
I plan on just using it for leisure slope and high start flying, and as a nostalgic show piece.
The wings are Obeche covered foam cores, and the fuse is a very strong composite fiberglass.
The stab is full flying, and the wingspan is right around 2.78 m.
Will be picking the kit up next Thursday, 2/4/16, and will start posting pics ect, later on next week.
The stab and rudder have yet to be covered, and am also thinking of covering the wings with a ''light'' Ultracote type low temp covering.
Also thinking of making some mild winglets for it.
This build is going to be a very slow process, as I have 3 other projects to finish up for this season, and am in no hurry to get this one done.
Here are some pics that were sent to me of it.
Ian
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Jan 30, 2016, 02:13 PM
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Looks Nice!
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Jan 30, 2016, 02:46 PM
I74
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Thanks Tom.
Jan 30, 2016, 04:52 PM
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You've got the double TT's subbed now! :-)
Jan 30, 2016, 06:28 PM
I74
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Thanks Thompson.
Just talked to my new friend from the Netherlands that has one of these, and has had it for many years ..
He will be jumping on here soon, and might have some pics to share with us also.
Jan 30, 2016, 06:28 PM
Me too the flapping wing kid.

Looks a lovely sailplane that
Jan 30, 2016, 06:33 PM
I74
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Thanks Ian.
Jan 30, 2016, 06:49 PM
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I have been thinking about the plastic canopy, and am seriously considering finding a place that will make copies of it.
It would be a crying shame if that original split and cracked while I was trimming it.
Don't think there is many of these planes out there, let alone any parts.
It would be like finding spare parts for Steve McQueen's Porsche 917.
Last edited by I74; Jan 30, 2016 at 06:57 PM.
Jan 30, 2016, 07:09 PM

Canopy


You'll never be completely stuck for a canopy Ian as you can always form one from balsa as an alternative to a clear canopy. However if your set on a replica you could always carve a plug at this stage and have that for use with someone's vac former in the event of you having a senior moment when doing up the original

You're not going to have a senior moment anyway and all will be fine I'm sure
Jan 30, 2016, 07:26 PM
I74
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Quote:
Originally Posted by senntinel45
You'll never be completely stuck for a canopy Ian as you can always form one from balsa as an alternative to a clear canopy. However if your set on a replica you could always carve a plug at this stage and have that for use with someone's vac former in the event of you having a senior moment when doing up the original

You're not going to have a senior moment anyway and all will be fine I'm sure
Thanks Ian, that is very reassuring.
Jan 30, 2016, 07:31 PM
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The canopy is not a problem. Look at vintagesailplaner.com , order the Astrojeff canopy for like 15.00 and just cut it down to size .
I use them almost universally on my scratch builds .
Jan 30, 2016, 07:39 PM
I74
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Thanks a lot for the info jetmaven, I do appreciate it.
Also,,
Pretty keen idea of carving a plug ''mold'', Ian.
Jan 31, 2016, 06:33 AM
I74
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Here is a photo courtesy of RetoF3X.
The link to the thread is : www.rcgroups.com/forums/showthread.php?t=1315244
Check it out.
Leaving out of town now, I will be back Mon eve. 2/1/16
Talk to you then.
Ian
Feb 04, 2016, 09:25 PM
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Picked up the Optima today - ''Thanks Bob''.
It is quite a piece of work.
It even came with a pristine manual, but for the life of me, I really can't understand the print, as it is in German.
Might have to have Studio RS , help me to decipher a few things.
Think I did figure what the cg is though...
The manual says : '' Seitenruder - Je Seite ca. 70mm ''

The linkages and mechanisms are very interesting and unique.
Will get photos as I go.
Also in reading, I found that the kit was put out in 1980.
Pretty cool stuff.
Ian
Feb 05, 2016, 02:46 AM
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Ian, I don't think that sentence has anything to do with the CG.

"Seitenruder - Je Seite ca. 70mm" means "Rudder - Each Side Approx. 70mm"


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