It’s interesting Estes put all that card detail on the model and but left the NC seriously short. I wonder if they lengthened the tube to compensate.

OK, I'll bite, whats a BCH? I couldn't even find a suitable definition for this one in the urban dictionary!

One of the 3D prinitng experts (like me) could also print you a suitable custom plastic nosecone for the Iris.

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Bruce S. Levison, NAR #69055

Blonde **** Hair
I hope answering this doesn't get me in trouble....
The middle word is one of George Carlin's 7 words you can never say on OTA TV.
It's number 4 on the list.

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, and HAVOC !

BCH is an ancient engineering term (it may even date back to Archimedes) for a very small amount.

__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078

There are A TON of kits that used the PNC-50YR nose cone.
Hopefully you may have one, or can acquire a kit to kitbash an Iris.
See attached John Brohm's nose cone reference list, scroll down to pp 20-21.

Attached Files

Estes_Nose_Cone_Reference_10.1.pdf (75.4 KB, 21 views)

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I like the unusual, the off beat, the avant-garde. No 3/4 FNC for me!

Thanks! I might have at least one of those. I’ll look when I return from Montreal.

__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078

I’m confused, I thought it was an RCH? Maybe RCH is metric? I graduated in 1975, and we were big into metric at the time, maybe that’s why I remember RCH ...

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Lee Reep
NAR 55948

Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor
In the Paint Shop: Nothing! Too cold!
Launch-Ready: Farside-X, Maxi Honest John, Super Scamp

We have righteously given the Metric System THE BOOT (excepting engine diameters, of course) and are back to BCH.

__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, and HAVOC !

Now THAT’S funny! I needed a laugh after going through YUL customs.
Thanks!

__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078

I had an feeling that’s what it meant. The chemE’s I worked with used an abbreviation RCCH for a small unit of volume where the first 2 letters stand for red cubic.

Getting into metrics; the square root of 69 might be “8” something, but 181 is metric for 69!

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Bruce S. Levison, NAR #69055