The D12 already has a bit of a core. I'm not sure how deep the core would have to be on a high thrust D, but definitely more than the D12. If it's more than a pintle could reliably provide, it won't happen. We're basically looking at a super sized B14.

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I love sanding.

A high-thrust D might have to have an "E" sized casing; I think this was the case (ahem) in the never-produced-in-quantity E48 (38?).

High thrust D might be closer in design to the B8 than the B14. Molded rather than drilled.

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NAR #27085 - Oregon Rocketry - SAM

That E48 (38?) would have been the most useful new Estes motor in decades.
Naturally they chose to not produce it....????

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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 !

That's my point. The D12 is already slightly cored using a pintle (molded), like the B8. Go much deeper with a pintle and you end up dealing with pintle reliability (erosion, breakage). I don't think there will ever be another Estes BP motor with a drilled core. I hope I'm wrong.

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I love sanding.

The corollary is that the number of participants on this board, TRF participants, and all NAR and TRA members combined make up only a very small % of all Estes consumers. Much of what is asked for (demanded?) in this thread are also "niche" engines.

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-Wolfram v. Kiparski
NAR 28643 - TRA 15520
MTMA Section #606 President

Most definitely. The average box store consumer won't know the difference between a C5 and a C6. In fact, they may think of the C6 as more powerful because it has a bigger number.

However, it would be nice for Estes to set aside a day or two out of the year to run one batch of B8's, D20's or whatever niche motors they choose. They can do a year's worth or more of of a single niche motor in 1/2 a day on one machine, so they could knock out several varieties in one or two days. It probably wouldn't help their bottom line, but if it helps keep an experienced niche motor user interested enough to start or maintain a club, those niche folks might keep a few "one and done" type folks in the hobby. Maybe Estes would benefit in the long run. I'm good at grasping for straws.

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I love sanding.

Call the C5 the "C8" instead. That would fit in with the "bigger is better" dullards.
NAR allows for "fudging" a bit on the average thrust number.

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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 !

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-Wolfram v. Kiparski
NAR 28643 - TRA 15520
MTMA Section #606 President

Don’t forget the powerful marketing adjective “Turbo”. Heck, it’s even used for dieting ... Marie’s been hyping Nutrisystem Turbo 13 forever.

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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

If you've ever been in a building full of women on the green tea diet, you'd agree with "turbo". There ain't enough Lysol on the planet.



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I love sanding.