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Breaking the Law?

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nomopbo

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Is it a no no to stage to engines of different diameters together? I was thinking starting stage 1 with a D-12-0 and ending stage 2 with a C-6-7. I know it will make taping the motors difficult, but other than that, any other problems?

Thanks
 

Fore Check

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This practice is perfectly legal and engouraged!

Take a look at the Estes Comanche 3. It stages (in order) D12-0 / C6-0 / C6-7

It actually works quite well because the nozzle or exhaust end of the C engine nests quite nicely inside the top of the D booster, making stage ignition even more likely.

Have Fun!
 

jflis

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The FlisKits Nomad does the same thing. 24mm in the 1st stage and 18mm motors in the 2nd and 3rd stages.

I also do it with our Pheord X150 saucer (18mm) with one of mini (13mm) saucers from our Triple Threat kit as an upper stage.

jim
 

HiflyinPRguy

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Absolutely not! Look at the Estes Comanche 3 when it fully loaded: the first stage is powered by D12-0, The second stage is powered by a C6-0 and the sustainere is powered by a C6-7! Three stages!!! 24mm-18mm-18mm

The FlisKits Nomad uses the same setup, albeit with a neater design :D

The old Estes Magnum also staged a 24mm to 18mm.

You really don't have to tape the 24mm to the 18mm because the nozzle of the 18mm fits into the top of 24mm booster
 

sandman

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Is there an echo in here???

sandman
 

jflis

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Originally posted by sandman
Is there an echo in here???

sandman
...is there an echo in here???...

.................is there an echo............

:D

Originally posted by HiflyinPRguy
The FlisKits Nomad uses the same setup, albeit with a neater design :D
why, *thank you*! :)

jim
 

Micromeister

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Not only is it OK, the 18mm motors fit inside the 24mm booster casing.
I fly a 2 stage UFO by simply sitting C6-0 inside the D12-0 of the lower stage. A real attention getter at shows.

Sorry this is the only pic I have of the model scanned, I have some pretty good flight photos i've never taken the time to scan and clean up.
 
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