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  #11  
Old 04-14-2022, 07:01 PM
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mojo1986 mojo1986 is offline
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Quote:
Originally Posted by stefanj
That is indeed a rare find!

Was it the version with the hand-written instruction set?

I have at least one adaptor for putting 18mm motors in 21mm FSI mounts. Might be expensive to ship, but if you really want it, lemme know.

All FSI motors are super rare now. Especially the A4 /B4 / C4/ D4. I'd consider hanging on to any you find and selling them to a collector. Buy a bunch of Estes B4-2 to fly that Viking on!



I have some E6's, F7's and F100's by FSI around here somewhere. Pretty hard to find nowadays.

Last edited by mojo1986 : 04-15-2022 at 05:06 AM.
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  #12  
Old 04-15-2022, 10:10 AM
stefanj stefanj is online now
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I dug through my box of adaptors and four FIVE FSI motor mount adaptors:

3 x FSI 21mm to 27mm

2 x FSI 18mm to 21mm

Skaffman, DM me you mailing address. The big concern is how to send this CHEAPLY.
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  #13  
Old 07-04-2022, 05:00 PM
Skaffman Skaffman is offline
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Default FSI motor adapters

Hello Stefan,bet you thought I disappeared, didn't ya? Sorry it's taken so long to get back to you, been busy with personal stuff for the last two months so I haven't had a lot of time to deal with anything else.However I still do want the adapters, I just need your mailing address again.I'm gonna try to get that money order out to you as soon as I can, but I might take at least another week.I'm starting on the Viking tomorrow and hopefully it wiil be done in another month, I want to take it to the next launch I go to. George S.
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  #14  
Old 07-05-2022, 09:44 AM
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I still have the box ready to go.

Stefan Jones
2313 NE Redelfs Way
Hillsboro OR 97006
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  #15  
Old 07-05-2022, 01:12 PM
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Quote:
Originally Posted by mojo1986
FSI engines were just black powder. Regular Estes starters work fine.


EXCEPT for the FSI F32 "THUNDERBOLT" composite motor . . .

https://www.oldrocketforum.com/atta...achmentid=60327



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  #16  
Old 07-05-2022, 03:22 PM
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Wow, Dave! Never seen one. In fact, not sure if I've ever heard of this engine.
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  #17  
Old 07-05-2022, 06:05 PM
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The FSI Thunderbolt composite motor was never produced in great quantities.
It was discontinued shortly after release. Finding one would be difficult if not impossible.

Calling a F32 a "Thunderbolt" is IDIOTIC considering they had a BP F100.
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  #18  
Old 07-05-2022, 07:14 PM
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Looking through my stash, I find I still have an F7-6 (nine seconds of burn) and an F100-0. I could have sworn the last time I flew FSI engines, they used thermalite to ignite. I know the nozzle of the F100 is way to big for a standard "starter" but I imagine electric matches or single strip igniters (oh, I used the bad word) like those used for Aerotech engines would work. Of course, a length of cannon fuse would work too. Someday, I'm going to burn that F100, staged to a D, and see how it flies. Last time I did (the MAch-1 system), I believe I did exceed Mach 1.
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  #19  
Old 07-05-2022, 08:28 PM
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Quote:
Originally Posted by mojo1986
Wow, Dave! Never seen one. In fact, not sure if I've ever heard of this engine.


I have only ever seen one fly. Doug Pratt of FSI flew one in an FSI Black Brant at one of our BCMRA launches ( Ft. Lauderdale, FL ) in the late 1970's. The motor had an orange flame, with black smoke.

Later, there was a "G60" Thunderbolt, too.

https://www.oldrocketforum.com/show...48&page=2&pp=10

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Last edited by Ez2cDave : 07-05-2022 at 08:56 PM.
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  #20  
Old 07-05-2022, 08:40 PM
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Quote:
Originally Posted by ghrocketman
The FSI Thunderbolt composite motor was never produced in great quantities.
It was discontinued shortly after release. Finding one would be difficult if not impossible.

Calling a F32 a "Thunderbolt" is IDIOTIC considering they had a BP F100.


The "F100" was, actually, only a full "E" motor 40 Nt-Sec. The F7 "Steam Machine" was 50 Nt-Sec.

As for finding one, there was one for sale, last year . . .

https://www.oldrocketforum.com/showthread.php?t=19542

Later, there was a "G60" Thunderbolt, too.

https://www.oldrocketforum.com/show...48&page=2&pp=10



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Last edited by Ez2cDave : 07-05-2022 at 09:00 PM.
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