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  #181  
Old 07-06-2019, 07:49 PM
Vanel Vanel is offline
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One of these is going to fly at MSFC on the 16th, and I figured Id run through some calcs to look at motor choice.

http://billsrockets.blogspot.com/20...et-science.html

Estes also whipped up a one-off custom SLS at the same scale for the NASA event - quite a change from the Tunick days!

Any comments would be appreciated - test flights early next week
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  #182  
Old 07-06-2019, 09:07 PM
Rocketcrab Rocketcrab is offline
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I flew mine at our SPAAR launch today on a D10-5. The perfect motor for this rocket, a great flight.
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  #183  
Old 07-06-2019, 09:08 PM
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5x7 5x7 is offline
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Quote:
Originally Posted by Vanel
One of these is going to fly at MSFC on the 16th, and I figured Id run through some calcs to look at motor choice.

http://billsrockets.blogspot.com/20...et-science.html

Estes also whipped up a one-off custom SLS at the same scale for the NASA event - quite a change from the Tunick days!

Any comments would be appreciated - test flights early next week


I had read lots of reports that the C12-4 is great for the Saturn V, and based on that I tried it and I had a good flight with it. Good luck.
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  #184  
Old 07-06-2019, 09:46 PM
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BEC BEC is offline
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I have seven flights on mine now. Four of these are on Q-Jet C12-4s. Unless you really need to go higher than ~400 feet, this is the perfect motor for the model. The other three flights are two on an Estes C6-3, which actually is acceptable (I don't know where the horror stories are coming from) and one on a Q-Jet D16-4. As with other models I've flown both C and D Q-jets in, the added thrust of the D means more speed which means more drag. That, coupled with the Q-Jet D being ~13 N-s means it doesn't go much higher at all, but it gets there faster.

I've seen one other fly on a D10. That got out in a hurry.
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  #185  
Old 07-11-2019, 07:51 PM
BARGeezer BARGeezer is offline
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Quote:
Originally Posted by Flash
Has anyone been able to get the free poster offer that comes with the 1/200 Saturn V in the parachute pack?

It's says Estesrockets.com/SaturnVoffer but I get nothing on that web address. I just sent in a e-mail to customer service.

EDITED!
I just realized I may have disclosed info to the public that should not have been, so I edited this post. As Gilda Radner would say.....
NEVER MIND
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Last edited by BARGeezer : 07-12-2019 at 12:48 AM.
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  #186  
Old 07-11-2019, 09:04 PM
Scott_650 Scott_650 is offline
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Quote:
Originally Posted by BEC
I have seven flights on mine now. Four of these are on Q-Jet C12-4s. Unless you really need to go higher than ~400 feet, this is the perfect motor for the model. The other three flights are two on an Estes C6-3, which actually is acceptable (I don't know where the horror stories are coming from) and one on a Q-Jet D16-4. As with other models I've flown both C and D Q-jets in, the added thrust of the D means more speed which means more drag. That, coupled with the Q-Jet D being ~13 N-s means it doesn't go much higher at all, but it gets there faster.

I've seen one other fly on a D10. That got out in a hurry.


Yup, the QJet C12-4 is a good match for this rocket. Plenty high enough to look impressive but not so high you cant watch the entire flight. If you have a relatively calm day the Estes C6-3 would be great for a demo launch, the slower lift-off and white smoke from the BP looks really nifty.
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  #187  
Old 07-11-2019, 09:53 PM
Vanel Vanel is offline
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Heres a flight report - the C12-4 did the job.

http://billsrockets.blogspot.com/20...st-flights.html
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Under construction:
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In finishing:
In primer: Zeta (Estes rocket plan #58), Mini-X (Estes rocket plan #20)
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  #188  
Old 07-11-2019, 10:05 PM
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5x7 5x7 is offline
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Quote:
Originally Posted by Vanel
Heres a flight report - the C12-4 did the job.

http://billsrockets.blogspot.com/20...st-flights.html


Boyce has a replacement upper section for the Cox 1B here:

https://boyceaerospacehobbies.com/c...p-cox-saturn-1b
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  #189  
Old 07-12-2019, 09:58 AM
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tbzep tbzep is offline
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Quote:
Originally Posted by BARGeezer
EDITED!
I just realized I may have disclosed info to the public that should not have been, so I edited this post. As Gilda Radner would say.....
NEVER MIND



Well dang. I wasn't online to see it.



.
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  #190  
Old 07-12-2019, 02:25 PM
BARGeezer BARGeezer is offline
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OK, for those of you who tried to get the free poster and clicked on the link in the addendum in the kit, the URL is incorrect. I tried it with my first kit, got a missing page message, and assumed they were all out of the posters.
WRONG! Ordered a second kit recently and got an email from the vendor showing the CORRECT URL.
So contact your vendor or Estes customer service for the correct link. They still have 'em in stock. Just got a notice that mine is on its way.
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