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Vintage Build: Microsonde III

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Joshua F Thomas

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Two 13/18 adaptators have been built. Because of the couplers between stages and the way they stack I had to build them special for each stage.

Should be able to launch all three stages at the next club launch, assuming I can find some A10T-0 motors.

7B3880D1-1CEE-453A-8820-8F1AC28D2FCC.jpeg
 

BABAR

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Two 13/18 adaptators have been built. Because of the couplers between stages and the way they stack I had to build them special for each stage.

Should be able to launch all three stages at the next club launch, assuming I can find some A10T-0 motors.

View attachment 429768
They look workable. Is the middle section of each adapter necessary? What do they weigh?

Hope you get a great flight!
 

Joshua F Thomas

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The extra length helps with the friction fit that is needed to keep the adapter in place.
 

Joshua F Thomas

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I finallllly got some A10-0Ts. So this is going up on Saturday,, assuming the winds are reasonable. C6-0 -> A10-0T -> A3-4T.

Every possible thing on this rocket is friction fit, which is nerve wracking, but we'll see if my skills are up to the challenge.
 

kuririn

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Just make sure the staging couplers are not too tight, and you'll be fine.
See post #15 in this thread from some guy named John Boren. ;)
Good luck!
 

rklapp

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Don’t see if this was already verified but from the Microsonde font, I’m guessing 1978.
 

kuririn

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Produced from 1970-1978.
Instructions say if you want to order engines directly from MPC, it's 3 for $1.25.
Catalog price for the kit was $3.
Good times.
EDIT: Of course minimum wage was something like $1.60/hr.
:D
 

Joshua F Thomas

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Just make sure the staging couplers are not too tight, and you'll be fine.
See post #15 in this thread from some guy named John Boren. ;)
Good luck!
The couplers are loose enough that I'm using small pieces of tape on the exterior body to hold the stages together until separation.
 
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