[AR] Re: Super Loki Dart design documents

  • From: "Monroe L. King Jr." <monroe@xxxxxxxxxxxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Wed, 03 Sep 2014 06:42:28 -0700

 Here is an interesting bit on a launcher for it.
http://assets.ngin.com/attachments/document/0030/8919/LAU900_LAUNCH_SYSTEM__1_.pdf

 Monroe

> -------- Original Message --------
> Subject: [AR] Re: Super Loki Dart design documents
> From: "" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender
> "JMKrell@xxxxxxx" for DMARC)
> Date: Wed, September 03, 2014 6:11 am
> To: arocket@xxxxxxxxxxxxx
> 
> 
> Viper 3A - 4.33"    upgraded Super Loki
>  
> Viper 2  - 7.08"
>  
>  
> Krell
>  
>  
> In a message dated 9/3/2014 6:03:32 A.M. Pacific Daylight Time,  
> acesaroni@xxxxxxxxxxx writes:
>  
> Closer  to 7".
> 
> Anthony J. Cesaroni
> President/CEO
> Cesaroni  Technology/Cesaroni Aerospace
> http://www.cesaronitech.com/
> (941)  360-3100 x101 Sarasota
> (905) 887-2370 x222 Toronto
> 
> -----Original  Message-----
> From: arocket-bounce@xxxxxxxxxxxxx  [mailto:arocket-bounce@xxxxxxxxxxxxx] 
> On Behalf Of Monroe L. King Jr.
> Sent:  Wednesday, September 03, 2014 8:53 AM
> To: arocket@xxxxxxxxxxxxx
> Subject:  [AR] Re: Super Loki Dart design documents
> 
> I thought the "Viper" was a  4" version.
> 
> Monroe
> 
> > -------- Original Message  --------
> > Subject: [AR] Re: Super Loki Dart design documents
> >  From: "Troy Prideaux" <GEORDI@xxxxxxxxxxxxxxxx>
> > Date: Mon,  September 01, 2014 7:25 pm
> > To: <arocket@xxxxxxxxxxxxx>
> >  
> > 
> > Which is kind of the point I was making.
> >   
> > Troy
> >  
> >  
> > The higher altitudes from  the Viper darts is the result of the 57 lbs of 
> propellant compared to the 37  lbs in the Super Loki.  
> >  
> > In a message dated  9/1/2014 3:46:44 P.M. Pacific Daylight Time, 
> GEORDI@xxxxxxxxxxxxxxxx  writes:
> > >O25000 great stunt motor but not very efficient.   Larger diameter 
> > >dramatically increases drag, particularly in the  le, dense atmosphere.
> > 
> > Not necessarily - for the same aspect  ratio and everything else being 
> equal, a larger diameter (or actually larger)  rocket should be more 
> efficient 
> than a smaller one in an atmosphere purely due  to *drag* - a larger rocket 
> is *less* affected by drag due to the cube-square  law. Of course (with 
> everything being equal), larger rockets generally go  faster due to this fact 
> and will, as a consequence, experience more drag so  everything isn't equal 
> after all and because of this will probably be less  efficient. Nevertheless, 
> it should go higher hence demonstrated why the  operational ceilings for 
> the larger Viper darts are considerably higher than  the smaller Loki.
> >   The O25000 probably is a bit short for a  really efficient dart motor, 
> but its burn time will go some way in making up  for that with an efficient 
> dart.
> > 
> > >
> > >This is why  all the folks flying N5800s are very amusing.  No doubt 
> >  >entertaining but highly inefficient.  Much of the energy of the motor  
> > >goes into drag and heat rather than altitude.
> > 
> >  Indeed. I'm guessing the attraction is the engineering challenge of 
> dealing  with the loads experienced with such an aggressive flight profile. 
> Flying such  flight profiles is incredibly inefficient, however well 
> engineered 
> *boosted  darts* are the most efficient method of obtaining a certain 
> altitude within an  atmosphere and gravity field.
> > 
> > Troy.
> > 
> > 
> >  
> > >
> > >K
> > >
> > >Ken Biba
> >  >Novarum
> > >Managing Director and CTO
> >  >+14155775496
> > >
> > >
> > >> On Sep 1, 2014, at  1:28 AM, "Monroe L. King Jr."
> > ><monroe@xxxxxxxxxxxxxxxxxx>  wrote:
> > >>
> > >> Yeah, that motor would do it. I just  can not afford that one.
> > >>
> > >> Monroe
> >  >>
> > >>> -------- Original Message --------
> >  >>> Subject: [AR] Re: Super Loki Dart design documents
> >  >>> From: "Troy Prideaux" <GEORDI@xxxxxxxxxxxxxxxx>
> >  >>> Date: Sun, August 31, 2014 8:22 pm
> > >>> To:  <arocket@xxxxxxxxxxxxx>
> > >>>
> >  >>>
> > >>> That O-25000 would be a very sweet motor for  a boosted dart :) 
> > >>> Very
> > >sweet indeed. What  was the 5" variant of the Loki again? Viper?
> > >>>
> >  >>> Troy
> > >>>
> > >>>> -----Original  Message-----
> > >>>> From: arocket-bounce@xxxxxxxxxxxxx  
> > >>>> [mailto:arocket-bounce@xxxxxxxxxxxxx]
> >  >On
> > >>>> Behalf Of Mark C Spiegl
> >  >>>> Sent: Monday, 1 September 2014 12:39 PM
> >  >>>> To: arocket@xxxxxxxxxxxxx
> > >>>> Subject:  [AR] Re: Super Loki Dart design documents
> > >>>>
> >  >>>> Monroe L. King Jr. wrote:
> > >>>>>> So  I guess I need to calculate the burn rate and see what COTS 
> >  >>>>>> has to
> > >>>> offer in
> >  >>>>>> that ball park. Who has the fastest COTS propellant?  Has anyone 
> > >>>>>> got
> > >any
> >  >>>> hard
> > >>>>>> data on that? I'm sure  someone out there in Arocket land 
> > >>>>>> already  know
> > >>>> who's got
> > >>>>>> the  hottest propellant.
> > >>>>
> > >>>> Cesaroni  O-25000???
> > >>>> It's a 5 inch motor but might  work.
> > >>>>
> > >>>> Cesaroni  N-5800
> > >>>> Is a 4 inch motor but only 20kNS  thrust
> > >>>>
> > >>>> For home brew, Kosdon  had some quick burning motors. You might 
> > >>>> find the  formulas online these days.
> > >>>>
> > >>>>  -->MCS
> >  >>

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