NAR contest cert Q.

Then why not allow uncertified motors too to widen the choices and farm new manufacturers into the contest scene for later contest certification ala FAI?

Jerry

or to

There's 2. The entire Cox line, along with the old Estes X-15 made up my "dangerous modle rocket list" at least until the mini X-wing jumped to the top.

I remember an old Ft Wayne MAR, where someone pranged the estes X-15 into the asphalt parking lot. It stuck like a lawn dart and came out without a scratch :-(

Bob Kaplow NAR # 18L TRA # "Impeach the TRA BoD" >>> To reply, remove the TRABoD!

What were the problems with the Cox rockets in regard to the Saturn V and Saturn 1B? Were they unstable, or just underpowered, or what?

They seem fairly rare (frankly, I don't recall even seeing them in stores, but they were apparently out during my "early adult hiatus" from rocketry), and I've never seen one fly (though I've managed to obtain one each, unflown). If there are problems with them, I'd like to know.

David Erbas-White

I presume you are posting this because it is such a strong feature :)

Jerry

Lover of shovel recovery.

I think they were out when I was involved in other things for a while too. I picked up the X-15 about 6 years ago from a shop that was closing. It flies great, it just doesn't want to stop flying.

The X-15 bt is so small and tight that even the smallest chute wants to hang up. There is also a plastic nub or two that the lines can snag on and it's easy to pinch a shroud line when putting the nc on after prep. The other models they sold might have similar problems in that the chute area is too confining, snags, etc.

(Mulder mode on) I would assume all of the Cox line was made from the same super strong plastic. My personal opinion is that someone accidentally shipped material to Cox that was supposed to go to Area 51 to be used on the F-117. : ) That could explain why the BATF is working so hard against us.

Fight The Future!

Randy

my COX LJ2 was never particularly dangerous from what I remember..I used to launch it in the backyard with either 1/4A or 1/2A and it would go maybe 40 ft.....cool

shockie B)

BB: I've often wondered why doesn't ESTES come into the 21 st century as far as their engines are concerned....

For example....If they created separate delay train/ejection charges, then a person could mix and match whatever delay they wanted with a particular engine....or they could even off a plug...and the modeler just glues it in?

shockie B)

loads of them. They

I have an even better idea....allow everybody to make their own engines and then test them ala FAI prior to use at NAR......NOT.....I don't think so.....

shockie B)

Because 5000 year old technology is "dirt cheap", mass-machine produceable, and is aqueous.

Jerry

Estes Certainly does (6+) Quest used to (2) till it exploded and killed a couple of people.

If only homeland security, NAR and TRA had not scared away all of those potential custromers.

Just for the record this post explains why Estes discontinues some motors or takes them out of production for extended periods of time.

The same manufacturing constraints apply to them except adding the fact they outsouce from a very small and under capacity supplier. I asked their supplier for some motors and it was beyond their capacity. I would be better off running my own BP machine if only I was willing to live with a deathwish and subject myself to more regulations than a thousand regulators can shake a stick at. Thank GOD Estes is grandfathered. Long live Estes!!!

Barry Tunik or not.

Hey Barry. Release the 24mm D40 already!!

Jerry

Shockie,

I have a feeling that just might become available someday. But not from Estes :)

Here's why Estes doesn't: These products are guaranteed to sell well in maybe one percent of the market. After that, certainly no more than

10%, which is a good number for a small manufacturer, but not for Estes.

That said, some could always be sold with the delays pre-glued to satisfy a market segment requiring that. But that's added processing for Estes (pressing the delay grain into its own tube, then gluing that tube into the motor case versus just pressing the delay into the motor case).

The key to the market's wide rejection of the adjustable BP motor is highlighted by this comment: Most dads can barely get the ignitor installed properly. Imagine their consternation when confronted with the task of installing the delay and getting it glued well enough to seal and avoid blow-by.

Even worse, many dads think a C6-7 has much more oomph than a C6-3, so rest assured they can't handle modular delays.

Doug

Sounds interesting.... I can say for certain that four of them wrapped around the core motor in a Big Daddy make for a LOT of get up and go!

--tc

You know, I've never thought of that, but I'll bet you're right.

I wonder if things would work out better if they renumbered them (for example) as C6-H, C6-N, C6-L (for heavy, normal, light) or something of that nature. The actual number, of course, would still be part of the specifications, but from a marketing/ease-of-dummy-use standpoint, that's something to think about.

David Erbas-White

expect them to be recalled faster than the stomp air

They are great in small Saucers and such...

Patrick

of them. They

cover anyone

Model Rockets

permission of the

Since they are on

owner to operate

AVI astroports GOLDLINE were first marketed before production this way.

I had(might still have) the newsprint catalog showing it. Seems it did not fly and they sold them "pre glued" only when in production.

I flew a few E24s trying to better do Mercery dual egg loft, but alas, the market did'nt buy the motors and AVI is now gone.

art

have 2 linear manufacturing processes? It seems to me

cost.... seems to me that some savings might accrue if you

trains in 2/3/4/5/6/7/plug times....

a3-0/a3-2t/a3-4t/a3-6t) ..

trains.....so people would stock up on the 0 engines

like this....

Do any of them involve string?

I thought I heard that from you, but I was playing with goddard at the time. Kewl Puppy I must say.

Art

Duratation events ARE partially a crap shoot

the thermals are not guarenteed and the real luck lies in how long will your randomly selected timer SEE your model.

Chris Taylor

Hard plastic shell that had a nasty habit of pranging and surviving.

Bob Kaplow NAR # 18L TRA # "Impeach the TRA BoD" >>> To reply, remove the TRABoD!