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  #11  
Old 01-11-2013, 09:06 AM
J Blatz J Blatz is offline
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Quote:
Originally Posted by JumpJet
Now that this information is out I can add the following. Except for the Mega Dear Red Max these BP F engines fly all of the new Pro Series 2 rockets just fine. I've flown models up to 24 ounces with these engines and they all flew perfect. I know I would NOT fly a 24 ounce model with a D12 but they fly fine on these 29mm BP motors.

John Boren


That surprises me. When I looked at the curve I had the same thought as Matt - this looks like trouble in the big Estes kits, especially with that long build up to max thrust.

So thanks for the info and looking forward to seeing these!
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  #12  
Old 01-11-2013, 09:15 AM
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JumpJet JumpJet is offline
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I forgot to mention that I have also flown many two stage rockets with these motors and the only issue to date is recovering the upper stage!

John Boren
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  #13  
Old 01-11-2013, 12:02 PM
stefanj stefanj is offline
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As George Takei is wont to say:

Oh My . . . .

This is . . . wow.
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  #14  
Old 01-11-2013, 01:09 PM
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ghrocketman ghrocketman is offline
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Are they powerful enough for a reasonably built 1/100 Estes Saturn V with a 29mm mount ?
Or are we talking Cruise Missile ?
Will they be sold in the proper 3-pak fashion ?

How about some PORT-BURNERS with a REALISTIC peak thrust level instead ???????
Hmm ?
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Last edited by ghrocketman : 01-11-2013 at 01:25 PM.
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  #15  
Old 01-11-2013, 03:49 PM
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Jerry Irvine Jerry Irvine is offline
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Quote:
Originally Posted by JumpJet
Now that this information is out I can add the following. Except for the Mega Dear Red Max these BP F engines fly all of the new Pro Series 2 rockets just fine. I've flown models up to 24 ounces with these engines and they all flew perfect. I know I would NOT fly a 24 ounce model with a D12 but they fly fine on these 29mm BP motors.

John Boren
That's great news. Given the 60g propellant mass, presumably under 62.5g TEW, this must allow them to be shipped in the same hazard class as you already ship E15 motors. This is definitely a total departure for Estes similar to but quite better than the FSI F7. HAPPY THANKSGIVING 2012! So are you also going to make a 39-40 N-s "full E" or is that too much product fragmentation?

That's 3.45 sec burn time. To me that short of a time reduces many of the concerns I had for even fatter streamlined models. No Saturn V's here (except maybe piston launched ), but I can see why John says the existing Pro line of kits will fly with those. Being BP the prices ought to be somewhat similar to the E15 on a per gram basis.

I will really be curious to see the new casing. Maybe I'll buy 10,000 of them and make some APCP motors with them. I did some successful experiments (customer deliveries) with 24mm APCP in spiral phenolic and NOZZLELESS motors (certified!) in traditional convolute wound cases.

These fit in a very wide range of U.S. Rockets kits. 4x as many kits as Estes offers. Masking tape thrust ring! Check out Sonic 160 (BMR2 series) and Two the Limit (AMR series). Everyone needs a Screamer! BMR2 series and available now from USR or Bellevue Hobbies email= sales@bellevuehobbycenter.com .

Jerry

NAR:

The following motor has been certified by NAR Standards & Testing for general use as a Model Rocket Motor effective November 25, 2012.
Estes:

F15-0,4,6,8
29mm x114mm
49.61 Newton-seconds Total Impulse
25.26 Newtons Peak Thrust
14.38 Newtons Average Thrust

Propellant mass: 60.0 grams
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Last edited by Jerry Irvine : 01-11-2013 at 04:33 PM.
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  #16  
Old 01-11-2013, 04:28 PM
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Jerry Irvine Jerry Irvine is offline
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Default Top 10 U.S. Rockets kits to use the NEW Estes F15 motor

Top 10 rockets that can use the Estes F15 right now:

Aero-Roc (BMR) 2.25" x 35"
Banshee (BMR) 2.25" x 42"
Interroc (BMR) 2.25" x 44"
Weghtlofter (AMR) 2.25" x 35"
Two The Limit (AMR) 2.25" x 65"
Miniroc 1.2 (SS)(BMR3) 1.22" x 21"
Fire & Forget (SS) 1.22" x 27.5"
Star (SS) 2.25" x 40.5"
Mosquito 2.2 (SS) 2.25" x 17.5"
Micro-Interroc (18mmMM) 1.22" x 21"
Screamer (BMR2) 2.22" x 22"

Sonic Series - Sonic 160 (BMR2) 1.22" x 34"
El Lubbo (AMR)(BMR2) 4" x 46" (not in stock)
Tomahawk 1.2 (BMR3) 1.22" x 21"
Arcon 1.2 (BMR3) 1.22" x 21"
Sniper (BMR3) 1.22" x 25"
Pillar of Fire 29mm (CC) 4" x 89" (not in stock) 7x29mm
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Exemptions not regulations. Please support DOT treating slow burning solids as not subject to HMR. 2015 NAR President declines!
U.S. Rockets instaship. http://bit.ly/1aca7mA Please buy some rockets.
The O administration believed in tax, spend, borrow, fine, mandate, monologue. D voters will soon be very happy with the election outcome!
Model rocketry is as safe as safe can be defined in human existence. Bow and pray: GH Stine, Orville, Vern, Lee, Lonnie, Carl, etc. No, really.
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  #17  
Old 01-11-2013, 04:56 PM
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Royatl Royatl is offline
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Quote:
Originally Posted by Gus
They are black powder, almost full F, but apparently not contest certified?


Not near full F. Only 50ns from 60gms of propellant. Only 4.5" long.

Should be ok up to about 1.5 maybe 1.75 lbs. lift off weight? Should be fine for all the current Pro Series II rockets. A little iffy on the big Red Max.

Contest certification is dependent on availability. So that won't happen until they actually reach the market.
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  #18  
Old 01-11-2013, 05:12 PM
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billspad billspad is offline
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Quote:
Originally Posted by JumpJet
Except for the Mega Dear Red Max these BP F engines fly all of the new Pro Series 2 rockets just fine.


Cluster?
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  #19  
Old 01-11-2013, 06:07 PM
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dlazarus6660 dlazarus6660 is offline
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Bill, were these the motors you guys were testing?
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  #20  
Old 01-11-2013, 06:23 PM
stefanj stefanj is offline
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Wild-arse guess:

Down the road a bit we'll get the 29mm high-thrust "E".

That is, a port-burning E in the same casing as the F15.

Hopefully much more reliable than the old FSI E60!
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