Quest 18mm D motors

I've seen these mentioned in several threads and wonder if they will be the same, or similar to, the already available Apogee 18mm D motors.

Anybody know?

or AT's 18mm D21...

The motors will be D18s with -4, -7 & -10 second delays.

They will use a molded case and bulkhead, similar to the AeroTech F20 in design.

SRP for a two-pak will be $23.99.

When these motors start showing up in hobby shops I will be buying them.

Nothing like watching an Alpha III scream!

These should be awesome

Now all we need is Apogee D3's back, and we'll have everything...

Originally posted by cjl
These should be awesome

Now all we need is Apogee D3's back, and we'll have everything...

Click to expand...

Not quite, we still need the B14's back.......

Joe W

wishful thinking!

True...

Thanks Bob.

SRP for a two-pak will be $23.99

Click to expand...

perforated bovine! I won't be buying many of those. AT 18mm RMS, 3 for $12, is a much better deal.

3 for $12?

Where?

I usually get 3 for $18-$20...

Originally posted by Initiator001
SRP for a two-pak will be $23.99.

Click to expand...

Ouch!!!

Just a bit pricey IMO.

I will try them when they become available to say that I used them.

I'm also wondering if they'll contain either a white or blue propellant.

Based on the designation, probably a blue, though it might be a white with a slight core geometry change from the D21...


On a side (though related) note, what propellant is the Apogee D10?
I bought a couple recently, and was wondering if they were blue like most apogee motors, or something else (the burntime is too short for an endburning blue, and too long for a standard blue, so that's why I was wondering).

Originally posted by cjl
Based on the designation, probably a blue, though it might be a white with a slight core geometry change from the D21...


On a side (though related) note, what propellant is the Apogee D10?
I bought a couple recently, and was wondering if they were blue like most apogee motors, or something else (the burntime is too short for an endburning blue, and too long for a standard blue, so that's why I was wondering).

Click to expand...

I think all the Apogee motors, (other than the end burning) were white motors, probably White Lightning because IIRC, they were made for Apogee by AT.

Originally posted by cjl
3 for $12?

Where?

I usually get 3 for $18-$20...

Click to expand...

https://www.hobbylinc.com/htm/aro/aro41304.htm
https://www.redarrowhobbies.com/reloadable/aerotech_reload_D13-4.htm

Originally posted by cjl
3 for $12?

Where?

I usually get 3 for $18-$20...

Click to expand...

Try BRS Hobbies . Low shipping charge as well, if you spend over $60 shipping is free.

Edit -- Man I can't type today.

For all those complaining about the MSRP:

RMS is not designed for newbies. Losing a casing is WAY expensive.

MSRP is not what you all pay for your motors, is it?

What do you pay for your C6-5 motors? MSRP?

Originally posted by Nuke Rocketeer
Not quite, we still need the B14's back.......

Joe W

wishful thinking!

Click to expand...

...or C5's

Originally posted by Chr$
...or C5's

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I'll second that! I'd even trade off getting a B14-0 for a C5-0.

Joe W

Originally posted by Nuke Rocketeer
I'll second that! I'd even trade off getting a B14-0 for a C5-0.

Click to expand...

But the B14-0 had more lifting power, perfect for boosting heavy stagers. The C5 was the evolution of the B14. The B8 was the pressed core replacement for the drilled core B14, and wasn't quite as aggressive. The C5 just added more powder to the B8 resulting in the long, low thrust tail.

I have a few Centuri Super C5-0S's I picked up, and while not B14's, they definitely have more oomph than B6's and C6's.

Doug

I have built several minimum diameter three stage rockets that I boosted with a C5/C5/C6-7, and even got most of the sustainers back! One was built using my leftover Centuri #10 body tubes and on that one I used three of my CMR Marcus strap-on boosters to cluster the first stage. I put 3 B14's in the strap-ons, a C5 on the 1st and 2nd stage boosters and a C6-7 in the sustainer. I bet I walked 2 or 3 miles getting that one back.

Joe W

Originally posted by doug_man_sams
But the B14-0 had more lifting power, perfect for boosting heavy stagers. The C5 was the evolution of the B14. The B8 was the pressed core replacement for the drilled core B14, and wasn't quite as aggressive. The C5 just added more powder to the B8 resulting in the long, low thrust tail.

I have a few Centuri Super C5-0S's I picked up, and while not B14's, they definitely have more oomph than B6's and C6's.

Doug

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I still have several packs of both, and use them when conditions are right!

Joe W

There were several versions of the B14 motor.

The early ones I remember had a deep stepped core.

The later versions from Centuri had a large conical core. Those were common with the colorful motor tubes and the graphite impregnated nozzle clay. (I'm told they used up the excess graphite "waste" that resulted from machining Enerjet nozzles and delay train housings).

Anyway, each version had a slightly different thrust/time curve.

Let's see if I can find them....

https://www.dars.org/jimz/catalogs/71cen47.jpg
https://www.dars.org/jimz/catalogs/71cen46.jpg
https://www.ninfinger.org/~sven/rockets/catalogs/estes711/711est84.html

Nope. All the literature I see from the mid to late 1970's still shows the stepped core, not the real conical core that I remember. Am I imagining that? I don't think I could be confusing the B14 with the C5 that showed up in the late 1970's....

Originally posted by doug_man_sams
But the B14-0 had more lifting power, perfect for boosting heavy stagers. The C5 was the evolution of the B14. The B8 was the pressed core replacement for the drilled core B14, and wasn't quite as aggressive. The C5 just added more powder to the B8 resulting in the long, low thrust tail.

I have a few Centuri Super C5-0S's I picked up, and while not B14's, they definitely have more oomph than B6's and C6's.

Doug

Click to expand...