I always lick the lead to make sure it's clean.

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I love sanding.

Now you tell me!

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I plan ahead that way I don't have to do anything right now.

Oh by the way, I'm not here just for the "olde" rocket discussions.

I can't count the number of times I bit down on lead sinkers to pinch them on my fishing line when I was a kid. Of course, if I didn't have brain damage, I might actually be able to count.

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I love sanding.

It is not as easy to absorb lead and get poisoned by it when it is the basic metal.

It is EXTREMELY easy to aborb it and get poisoned when the lead is in a compound as noted in the literature.

http://en.wikipedia.org/wiki/Lead_poisoning

http://www.google.com/search?hl=en&...G=Google+Search



http://www.youtube.com/watch?v=YPDtcMbgHbk

It's not funny, it's not fun....

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-Fred Shecter NAR 20117 (L2)
Southern California Rocket Association, NAR Section 430

Of course you realize that their warranty only applies when you use Estes engines.

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Bob Harrington
NAR #62740 L1
AMA #46042
CMASS & RIMRA Member

Well boo! I would still want to know the weather. ALl things being equaly you can throw a Bullpup and it maintains stability. If the thrust of the motor is too far forward (but doesn't the plastic tailcone rather place the motor tube in the correct position?) then it would be squirrely, and pretty much reproducible with every flight.

I'll build one and see how it does. I've got to get something for a school launch on Tuesday anyway. The ARCAS can wait...

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Gravity is a harsh mistress
SAM 002
NAR 91005
"The complexity of living is eminently favored to the simplicity of not."

Addressing the comments:

If there was ANY chance of the clay melting because of heat, it would have been AFTER the second flight.

The rocket was built according to the Estes instructions. Yes, there is a tailcone and you have to mount the motor mount with the business end flush with the tailcone end.

One of the canards looks like it might be just a tad off straight, but I don't know what that might mean for performance.

The days we launched the Bullpup were both late afternoon (Florida) with a bit of a wind that came and went, but nothing that seemed out of spec.

Also, I'm hearing about these Quest motors and their dubious performance compared with the Estes motors...

... and once again the consumer discovers he needs to bring along the Vaseline. More warranty nonsense... like their kits will only fly on Estes motors. Cheap shot... I can only buy Quest motors around here in the sizes I want, unless I want to spend an extra $4. Pardon my French, but ******.

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-Brain
SKY AYE ROCKETRY
Follow Your Impulse!

In the right rocket, the Quest motors are great.

The Quest C6-5's have a nice long burn and in a light rocket their performance is every bit as good (if not better) than Estes C6-5's.

But if your rocket is on the heavy side, then you need the extra lifting power of the Estes engine.

The warranty thing kind of sucks but, from their point of view, they build and test their rockets using their engines and as such will only warranty them if you use one of their recommended engines.

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Bob Harrington
NAR #62740 L1
AMA #46042
CMASS & RIMRA Member

Another good ballast material for plastic nose cones is two-part polyurethane resin such as Alumilite (see: www.alumilite.com ) or Por-A-Kast (see: http://www.bare-metal.com/Pathway%2...in-Casting.html ). In 1996, I used several ounces of Por-A-Kast resin in the tip of the nose cone of a BT-60 size, D12-powered Sport Scale model of the German-Swiss Zenit (Zenith) sounding rocket, which I donated to the 30th anniversary reunion event of the ESRO (European Space Research Organization) sounding rocket team at ESRANGE in Kiruna, Sweden (see Figure 5 here: http://www.esa.int/esapub/bulletin/bullet88/peder88.htm ). The resin would probably also work to seal in clay in the hollow tip of a nose cone.

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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

I hadn't heard anything about the reliability of Quest motors vs. Estes motors. I also haven't used any Quest motors to this point either. What's the problem?

__________________
I plan ahead that way I don't have to do anything right now.

Oh by the way, I'm not here just for the "olde" rocket discussions.