Activity

This has been a crazy busy week – I'll get launch logs posted soon.

Recreation Event InspectionPawnee National Grassland Permit Holder:              Northern Colorado RocketryEvent:                          “High Skies in July” rocket launch eventEvent Date(s):               Friday, 7/10 – Sunday, 7/12/15Inspection Date/Time:  Friday, 7/10/15, on-scene from approx. 1230 – 1415Location(s):                  North…[Read more]

Friday has been approved as an additional day from the USFS for high SKies in july, weather pending.  We have got to get the jet stream to move or the moisturous monsoons keep coming thru the area and will inhibit/prohibit…   Read more»

5.5″ Patriot

Right now I have a 3″ minimum diameter hybrid that isn't names.  Comes in at 35 pounds ready to fly and just under 120″ tall.  RASAero says 33,700'.  Last time I few the M900 rocket the sim was within 2%…   Read more»

I'd keep it as is, and just go bigger than you'd normally go with the main chute.  I've broken a fin on 3 of the last five rockets I've launched, so I need to learn more on this as well.IF…   Read more»

Like Mike, I have only removed the cardboard plug and emptied the powder.  I haven't had any issue with pressure.  My outboard airstart motors have only a few cubic inches of airspace in front of them (sealed, no venting) and…   Read more»

Thanks, Mike — it is a smaller diameter – 2.5″,, and not a lot of volume either if, as planned, I use a 6XL motor, so I'm a little concerned about residual hot gasses expanding up into that space. I do have two 1/4″…   Read more»

I have only removed the cardboard plug, dumped the powder out. I have neverre-sealed. I have had no problems. I would suspect that there would be somepressure. Putting the cardboard plug back in probably would not change that.Could be a…   Read more»

Just got the waiver back for TC so we can launch up there at the end of the month if that makes anyone feel better.

I was also looking forward to a few days on the prairie.  Hope we don't dry out too much and they go back to the it's too dry to launch in July.Rats!Almost forgot what you look like Mike…   

Rats! How ironic to go from too dry to too wet. I will be out of town for July, so will hope to see all of you in August.Scott

I feel your pain Mike.  I have finally completed a rocket that pushes to the 35k waiver.  I won't be in town for High Skies so it will have to be Oktoberfest.  I'm afraid of penciling that in on my…   Read more»

🙁  The next launch for me will be Aug 8th. Hope to fly. 🙂

Man – this is turning into a damned if you do damned if you don't situation.  No enough rain to fly or too much rain and we can't get there. Edward

Did that this morning: Just with the K on OpenRocket. 13.9 ms (31.9 mph) aprox alt 3700ft.Assuming most was filled out correctly :)Seems pretty reasonable??

Throw it into Rocksim or OpenRocket and check velocity off the rail.  Also very handy for figuring out timing for airstarts.-Ken

I also have an update for the site that I am hoping will be done by the end of July.

sounds good

Yes, correct address or on site payment will work.  Yes on set up Thursday although that's still pending decision from USFS as to whether the road will be too sodden and muddy for access.  If it isn't too dry and…   Read more»