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 > > >>