NCR Development Environment | Adrian | Activity

Adrian replied to the topic "NCR March Launch 2018" -

Tue, 09 Jul 2019 06:21:44 -0600

From an email sent today: From: Northern Colorado Rocketry Date: March 2, 2018 at 953 AM MST To: Joe Hinton Subject: NO GO 4 LAUNCH – RED FLAGS Reply-To: Northern Colorado Rocketry Members and Friends, STOP -… Read more»

Adrian replied to the topic "Looking for collaborators" -

Tue, 09 Jul 2019 06:20:38 -0600

Check out the BeagleBone Black, or the STMicro discovery platforms. The latter is $12, has 9 axes of inertial/magnetic sensors built in, and probably has all the computing power you need, with a 72 MHz Arm processor. If you need… Read more»

Adrian replied to the topic "Thanks Adrian, you will be missed!" -

Tue, 09 Jul 2019 06:19:37 -0600

Thanks, Bear. Yes, I am taking a job at Moon Express in Mountain View, CA, and relocating the family out there. This is just too interesting an opportunity to pass up. But I hope to come back to Colorado in… Read more»

Adrian replied to the topic "Re: center of gravity" -

Tue, 09 Jul 2019 06:19:34 -0600

I am looking for opinions on center of gravity, forward of center of pressure. From what I have learned so far is that the C.G. should be the airframe diameter, ahead of the C.P. at a minimum. My question is,… Read more»

Adrian replied to the topic "Proton 2.0!" -

Tue, 09 Jul 2019 06:19:31 -0600

As for the lighting the outboard motors from the ground, that has its own potential problems, as has been demonstrated on a number of other failed or close-call big projects. When we go to smaller outboards to reduce the potential… Read more»

Adrian replied to the topic "Proton 2.0!" -

Tue, 09 Jul 2019 06:19:31 -0600

Ken, I liked what you were saying about headphones but why not try my stethoscope and listen in that way as we rebuild it, then we could decide if we need headphones and headphone jacks. Maybe if necessary, depending on… Read more»

Adrian replied to the topic "Fire works and fire ban for entire state!" -

Tue, 09 Jul 2019 06:19:29 -0600

Radar says that the North site got over an inch of rain today.

Adrian replied to the topic "Rocket Recovery Etiquette" -

Tue, 09 Jul 2019 06:19:25 -0600

I always bring the rockets I find out there back with me. I look around but, man the prairie is big. I found 4 rockets at this MHM alone. One was Adrian’s from last year another was a Blackhawk 24,… Read more»

Adrian replied to the topic "Rocket Recovery Etiquette" -

Tue, 09 Jul 2019 06:19:25 -0600

I have had it both ways, benefiting from people finding rockets of mine that I otherwise would have lost, and having a frustrating multi-mile run-around,tracking my radio transmitter-equipped rocket back to the LCO table. On the whole, if someone brings… Read more»

Adrian replied to the topic "Forecast for 2012 MHM" -

Tue, 09 Jul 2019 06:19:13 -0600

Now all day Friday and Saturday afternoon are showing 15-20mph winds, but Sunday is o.k. at little under 10 mph and Monday looks better yet. No chance of precipitation other than a small chance of evening thunderstorms on Friday and… Read more»

Adrian replied to the topic "Forecast for 2012 MHM" -

Tue, 09 Jul 2019 06:19:13 -0600

The site, above, lets you scroll through both altitude and time. On Friday you’re looking at 60 knots (70 mph) at 18,000 feet.

Adrian replied to the topic "Forecast for 2012 MHM" -

Tue, 09 Jul 2019 06:19:13 -0600

Here’s a good upper level wind forecast site. The forecast for Friday is for a 150 mph jet stream to be centered over the launch site. Hopefully it will move off after that.http://aviationweather.gov/adds/winds/

Adrian replied to the topic "Forecast for 2012 MHM" -

Tue, 09 Jul 2019 06:19:13 -0600

The forecast has mostly improved since yesterday.Friday: 15mph SE wind all day, 30% chance of afternoon showersSaturday: clear, 10-20 mph SE windSunday: clear, then increasing clouds, just 3-6 mph windMonday: clear, 7-12 mph Westerly…[Read more]

Adrian replied to the topic "Intimidator 4 for MHM 2012" -

Tue, 09 Jul 2019 06:19:07 -0600

Ooh, that’s a good name.

Adrian replied to the topic "MHM 2012" -

Tue, 09 Jul 2019 06:19:02 -0600

Sorry you couldn’t make it, and thanks for letting us know.-Adrian

Adrian replied to the topic "For Sale - CTI M795 Moonburner reload kit" -

Tue, 09 Jul 2019 06:18:53 -0600

Not me; I’m still L2.

Adrian replied to the topic "Nose cone weight" -

Tue, 09 Jul 2019 06:18:21 -0600

You can get tungsten powder from Amazon, but it’s not all that cheap. People use it for weighting golf clubs. It’s about $15 for 1/2 lb if I recall correctly. It’s a pretty easy way to shave 1/2″ off of… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:18:10 -0600

The Russians must have been watching our MHM flight last year and decided to copy our technology//www.cnn.com/2013/07/02/world/europe/russia-rocket-explosion/index.html?hpt=hp_t2

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:18:09 -0600

Thanks. That seemed to work. It’s processing now.

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:18:09 -0600

I thought by now, Adrian would have had all the data posted.All the g force curves showing, when and what moters fired, ejection charges fired, directional g-forces on the rocket…………… and what Soda Joe was drinking at the time. I… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:18:05 -0600

Well said, James and Steve!

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:18:05 -0600

My prep is going way overtime, so now I’m planning to come up early tomorrow so I can keep working tonight. I have range duty in the morning tomorrow and then I’ll be free to install the electronics sleds in… Read more»

Adrian replied to the topic "Re: Parachute Options" -

Tue, 09 Jul 2019 06:18:03 -0600

Hey Gang! We have a bit of a snafu with the planned parachutes and may will need to do some scrounging. We had planned for a 16′ or so chute for the booster section .. about 80 lbs .. but… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:18:02 -0600

I’ll make time to come out sometime this weekend to help finish with the electronics.

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:52 -0600

I’m going to finish up the booster electronics panels and then deliver them today, sometime between 10 and noon.

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:51 -0600

Could the project make use of a SkyAngle deployment FreeBag?, XXL (10″ x 17″)? I won it at the rocketry dinner and I don’t see myself ever using it.-Adrian

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:50 -0600

I could see using the Missleworks radio for the 2nd stage ignition and then using the TiltoMeter for the 3rd. Does anyone have one that they are willing to lend for this?-Adrian

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:50 -0600

Update on the electronics: In communications with Frank Hermes, his TiltOMeter can’t provide tilt checking for more than one event, and he’s not interested in making firmware updates that could let it be used for more than one. The Featherweight… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:48 -0600

I have some battery connectors on their way, and when they arrive I’ll make the booster electronics panels. Then we need to start thinking through the 2rd/3th stage electronics in earnest. I have a tiltchecker now, but I haven’t powered… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:43 -0600

So you’re ready for booster electronics, then? Do you have a spot to incorporate a panel with altimeters and batteries for the booster cluster ignition? I can do it in one or 2 panels. I’m guesstimating now that it would… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:37 -0600

For the bolted interface, I would suggest to design it so that the airframe tube of each section is butted up against each other and the nylon bolts just preload that interface. That way, as long as the preload from… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:37 -0600

For the exploding bolts, I’d recommend Quest Q2G2 ignitors because we can run as many bolts in parallel off of one electrical output as we want.For the booster, I could make up a couple of small plywood sleds that have… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:35 -0600

Thinking outloud here and thinking towards a worst case scenario, of the three main motors, only two ignite in the booster, and only three of the 6 outboards ignite, and they are all on basically one side so that a… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:35 -0600

To maximize the chances of all 6 outboards lighting, and minimize the consequences of one failure, I would use 2 Raven altimeters to give each outboard its own channel, battery, and arm switch. Then there would be 2 booster channels… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:35 -0600

O.k., so light all 6 outboards on the rail at first motion, then stage separation, then light the sustainer, right? What size for the outboards? Are you still plannnig for a K sustainer motor?I’m pretty sure the ban on the… Read more»

Adrian replied to the topic "Smash Rocketry New Group Project - The Proton M" -

Tue, 09 Jul 2019 06:17:34 -0600

What’s the current plan for the airstarts and electronics? I have a Rocket Tiltometer from Frank Hermes on the way that I should be able to loan for this if needed. But if the outboards are just going to be… Read more»

Adrian replied to the topic "how many people are in NCR?" -

Tue, 09 Jul 2019 06:17:10 -0600

are there any repositories of known HPR webshops? I’m considering the possibilities of starting yet another HPR-based web business, and the next step is estimating the cost of advertising.www.rocketryforum.com and http://www.rocketryplanet.com are both great places to let people know about… Read more»

Adrian replied to the topic "Website improvements" -

Tue, 09 Jul 2019 06:17:09 -0600

Thanks, Warren, for accepting the correction of this misunderstanding with such grace. No hard feeling here.

Adrian replied to the topic "Website improvements" -

Tue, 09 Jul 2019 06:17:09 -0600

Apology accepted, Warren. I know you have been doing your best on this and your heart is in the right place. There is one assertion that you are making that is incorrect, however, that I think has been at the… Read more»

Adrian replied to the topic "Website improvements" -

Tue, 09 Jul 2019 06:17:08 -0600

I’m reposting what I wrote on another thread, with minor mods, because it’s relevant here and it might have been missed before:Different people get hooked on rocketry for different reasons. For me, the idea of flying a rocket higher than… Read more»

Adrian replied to the topic "Website improvements" -

Tue, 09 Jul 2019 06:17:08 -0600

I deal with ITAR issues all the time at work, because all specific technical information about spacecraft designs are covered. I’m not a lawyer, but I’m pretty sure that there’s nothing we’re discussing on this forum that is covered by… Read more»

Adrian replied to the topic "curing temp for Aeropoxy" -

Tue, 09 Jul 2019 06:17:02 -0600

I’ve had a lot of flaws in my scratch tubing too, but they’ve been mostly cosmetic. I’m making my own tubes for 2 reasons: I like using mostly axial unidirectional fibers for more efficient tube bending strength, 2. For my… Read more»

Adrian replied to the topic "curing temp for Aeropoxy" -

Tue, 09 Jul 2019 06:17:01 -0600

Mine will be similar, at 18″x18″x6′. I’m concerned about not having enough convection for mine, too. You may want to do an experiment with the thermometer at different places. Where did you get your temp switch?If your epoxy isn’t crumbly… Read more»

Adrian replied to the topic "curing temp for Aeropoxy" -

Tue, 09 Jul 2019 06:17:01 -0600

What are you using for a heat source, and do you have a fan in your oven? I’m building an oven now, myself, and I’m working on rigging up an external motor that turns an internal fan blade.

Adrian replied to the topic "curing temp for Aeropoxy" -

Tue, 09 Jul 2019 06:17:01 -0600

You should cure Aeropoxy at a temperature that is close to the service temperature you’re planning to use, if you want it to have full strength when it’s hot. I have post-cured Aeropoxy to 225 in my kitchen oven for… Read more»

Adrian replied to the topic "Adrian, John Wilke, Seth, Chad... you are all call to a meet" -

Tue, 09 Jul 2019 06:16:57 -0600

Uh oh… called to the principal’s office again.

Adrian replied to the topic "NCR's next event" -

Tue, 09 Jul 2019 06:16:56 -0600

Thanks, Joe.

Adrian replied to the topic "NCR needs a Webmaster/Developer!!!!! NOW!" -

Tue, 09 Jul 2019 06:16:54 -0600

Welcome, and thank you!

Adrian replied to the topic "One complicated landing!" -

Tue, 09 Jul 2019 06:16:51 -0600

Getting back to the original topic….Adrian: I appreciate your perspective and insight on this mission. It’s interesting to hear about the pros & cons of the various approaches.But, even speaking as an aerospace engineer — wow, is that a complicated… Read more»

Adrian replied to the topic "One complicated landing!" -

Tue, 09 Jul 2019 06:16:51 -0600

The U.S. is borrowing (currently with an interest rate of about 2%, pretty much the same as the inflation rate, so zero real cost) 39% of what it is spending.http://www.cbo.gov/ftpdocs/120xx/doc12039/HistoricalTables%5B1%5D.pdfWe went from a surplus at the end of the 1990s… Read more»