Quite true.... Longer thrust duration, lower average thrust. Later! OL JR

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The X-87B Cruise Basselope-- THE Ultimate Weapon in the arsenal of Homeland Security and only $52 million per round!

I thought the nose cones were glued in place on these. Why are you losing so many?

My guess-- Estes "shotgun ejections"....

Later! OL JR

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The X-87B Cruise Basselope-- THE Ultimate Weapon in the arsenal of Homeland Security and only $52 million per round!

Looks like the glue joint was not strong enough to hold against the ejection charge. The "Base Model" lost the bulkhead at the top of the mount, and that took the nose cone with it.

The fix is simple, I'll extend the motor mount tube a little and put a centering ring on top of the bulkhead to add more gluing surface.

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John Adams
"There is a lot of rocketry under 20ns"

You know that old saying...a camera adds 10 pounds...

...though with rockets, being light to begin with, the effect is not quite so pronounced.


Bill

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It is well past time to Drill, Baby, Drill!

If your June, July, August and September was like this, you might just hate summer too...

Please unload your question before you ask it unless you have a concealed harry permit.

: countdown begin cr dup . 1- ?dup 0= until cr ." Launch!" cr ;

Give a man a rocket and he will fly for a day; teach him to build and he will spend the rest of his days sanding...

I just reread this post and enjoyed it very much. I'm surprised none of you ever thought of using thin super glue on the inside of the bug and fins to both strengthen and flame-proof the glider. There is little to no weight gain using this method. It will distort the printing a little if your not careful. Also, I use epoxy when it requires the N/C to be glued on. Over time the epoxy will give way because epoxy will crystallize with high heat from an ejection charge.
Just sharing some info.

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If it flies, I can crash it!

Since I got my nosecones from Semroc, I am on hiatus for a bit on this.

Actually, that's not fair. The real issue is that I kinda reached a point last year when I had totally had it with rocketry in general. I have been attempting to secure a local field for several years now, and keep getting rejected. I got a little sick of hearing about how rocketry was too dangerous, only to see the same field used for youth rugby. I also got tired of being jerked around by NAR. I put in a very simple Rules Change Proposal; to add STAGED ALTITUDE as an event, after all, we have CLUSTER ALTITUDE - and a provisional even involving the timed drop of a Wiffle Ball . For a few years now, the NAR has strung me along, passing me from one officer to another. They never even put it out for a vote by membership. If they said "No" I would be cool with that, but answering by not answering is for little kids.

So, I just stopped being a rocket nerd.

...for a while...

Lately, however, I find that I still wanna fly rockets. I still dig my 13-second gliders, so they will be back once I get them fixed back up.

Oh... and I gonna get that futzing field...

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John Adams
"There is a lot of rocketry under 20ns"

There are parks that have recroc (recreational model rocketry) programs, and some even have rack launchers that they rent to users (one in New Mexico, near White Sands, does this). I'd use that as legal/logical ammunition, and a set of printed comparative activity safety statistics (the NAR has them) could be used to back it up. Regarding your perfectly understandable frustration at the NAR's apparent "run-around" concering the Staged Altitude event:

I'd recommend doing what our local Girl Scouts did when the national organization went "anti-gun," but the local ones -wanted- to earn shooting merit badges. They organized a shooting merit badge program themselves and award unofficial (to the national organization) shooting merit badges for achievements in that field. I don't hate the NAR (I'm a member of it myself), but I also don't defer to their every edict, either. So what if the NAR doesn't sanction your contest concept? Hold it anyway! I enjoyed flying model rockets long before I ever even heard of the NAR, and my enjoyment of the hobby is NOT contingent upon their official approval!

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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR

Welcome back!

Just use the field anyway!

Asking for forgiveness is easier than asking for permission.

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If it flies, I can crash it!

I have been flying rockets for 40 years and never been a member or within a 100 miles of a NAR Event.

At one time, our local R/C club got taken over by doctors and lawyers. If your airplane didn't cost $600 or more, they wouldn't even talk to you. So, we flew out in the corn field by our selves...
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