Being a machinist the spin launcher does indeed inspire me from an artistic standpoint and would be a proper challenge. It's pretty too! Yeah I'm not looking for a Super Loki the original Loki (also spin launched) is the ticket for a rockoon and there is no spin launcher in that scenario. Perhaps he has an Original Loki? Thanks for the heads up. I meet Mr. Rosenfield at LDRS 29 he seemed like a nice fella I'll ask him about it. It does look like the Warp-9 propellant they sell may be the hottest propellant? It also looks like the propellant was made for the Pegasus perhaps? By the same company that made the Loki. Here is a coupla shots of my progress with Mission Control. Monroe > -------- Original Message -------- > Subject: [AR] Re: Super Loki Dart design documents > From: Ken Biba <kenbiba@xxxxxx> > Date: Sat, August 30, 2014 9:20 am > To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx> > > > Gary Rosenfield of AeroTech used to manufacture the Loki booster and indeed > has a bunch of the airframes as surplus I believe. He certainly knows the > propellant. Suggest you ask if he can help. I do know that if you want he > will sell one of surplus airframes - if he still has them. > > The challenge with the Loki is the spin launcher. > > K > > Ken Biba > Novarum > Managing Director and CTO > +14155775496 > > > > On Aug 30, 2014, at 7:52 AM, "Monroe L. King Jr." > > <monroe@xxxxxxxxxxxxxxxxxx> wrote: > > > > Bill > > Thanks for the feed back. I had already asked one manufacture about a > > comparable COTS motor for a Loki and the answer I received was a 5" > > motor. That throws everything off and cost a good deal more. > > > > Besides that I had also mentioned to this manufacture we wanted to > > recreate the Van Allen experiment on the 60th anniversary next July with > > a balloon launched Loki. (what's really funny is now these papers show > > up a week or so after I asked the same guy if he had any hard info on > > the Loki) > > > > Being I already have the balloon- I'm more interested in the standard > > 3" Loki Dart from an expense point of view. If I could just find some > > COTS propellant that burns that fast. > > > > 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. > > > > Monroe > > > > > >> -------- Original Message -------- > >> Subject: [AR] Re: Super Loki Dart design documents > >> From: Bill Claybaugh <wclaybaugh2@xxxxxxxxxx> > >> Date: Sat, August 30, 2014 6:50 am > >> To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx> > >> Cc: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx> > >> > >> > >> Monroe: > >> > >> See below: > >> > >> Sent from my iPhone > >> > >>> On Aug 30, 2014, at 3:03, "Monroe L. King Jr." > >>> <monroe@xxxxxxxxxxxxxxxxxx> wrote: > >>> > >>> Question: > >>> > >>> Why did not anyone use this method to win the CATS Prize? > >> > >> The RRS "50 mile" dart flew in '96 and appears to have been part of the > >> inspiration for the CATS Prize, so everyone certainly knew about the > >> technique. > >> > >> I cannot say why others did not use a dart, but the RRS team mostly did > >> not see the point: the prize wasn't enough to cover the cost of developing > >> a new rocket bearing in mind that the dart had to carry instruments > >> that--twenty years ago--were too big to fit in less than a 4" diameter > >> dart. > >> > >> That diameter drove the optimal dart mass toward 70+ pounds and thus to a > >> very high thrust and short burn booster. > >> > >> Today's much smaller electronics might make the dart smaller and thus > >> lighter; carrying GPS is also practical now in a way it was not in the > >> late '90's. > >> > >>> > >>> Second: Is it not possible to use COTS grain segments of this same > >>> diameter and get similar results? > >> > >> In principle, yes, one could use a commercial motor. I'm not certain there > >> exist one with the kind of sudden impulse that is required; also remember > >> that the launch tube was an important part of the Loki's performance: it > >> was a very highly optimized system. > >> > >> Bill > >> > >>> > >>> Is there that much difference in the propellant used in the Loki? > >>> > >>> Monroe > >>> > >>>> -------- Original Message -------- > >>>> Subject: [AR] Super Loki Dart design documents > >>>> From: "Mark C Spiegl" <mark.spiegl@xxxxxxxxx> > >>>> Date: Fri, August 29, 2014 1:48 pm > >>>> To: <arocket@xxxxxxxxxxxxx> > >>>> > >>>> > >>>> I don't own the site. I was just surfing. The following two documents > >>>> describe the Super Loki Dart in decent detail. It's interesting > >>>> reading... > >>>> > >>>> > >>>> http://www.rrs.org/wp-content/uploads/2014/01/Super-Loki-Dart-Meteorological > >>>> -Rocket-System-1968.pdf > >>>> > >>>> http://www.rrs.org/wp-content/uploads/2014/01/Design-Development-and-Flight- > >>>> Test-of-the-Super-Loki-Stable-Booster-Rocket-System-1973.pdf > >>>> > >>>> -->MCS > >
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