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As it says in the title. Apparently there are some details over on the UROC Facebook page. Looking forward to seeing/hearing more!

Given the confusion many people run into when attempting to configure staging electronics (myself included) I thought it would make sense to start a thread where people could document their tilt inhibit staging configurations for Altus Metrum products that are configured for tilt inhibit. So if...

SparkFun Satellite Transceiver Breakout - Swarm M138 Reminds me of Greg Clark's Big Red Bee Iridium SBD, but it's cheaper up front and cheaper to run in terms of monthly service cost. I'd love to know which uBlox chipset is integrated with the unit but I expect they would be very useful for...

For some time now I've been exploring different ways of receiving and decoding APRS packets from the GPS transmitters I use (AltusMetrum and Big Red Bee) for backup telemetry, telemetry logging, and redundancy. Effectively all of my past work in this space has used handheld radios (in my case a...

So I saw this earlier in the week and I must say I'm pretty impressed. Basically they're taking wifi cards but modding them in software to transmit more akin to a standard/dummy radio (that's my ignorant understanding, I've not dug into it that much). They are then used for long range...

West Point has a Hypersonic Rocket Team called SPEAR. They flew a 4" to 3" sub minimum diameter two stage at FAR on May 1st and recovered the sustainer successfully. IDK but I suspect the booster was expendable. Sustainer apparently just exceeded Mach 5 and inertial data indicates ~84km distance...

I'm about to renew my Tripoli membership after some years of lapsed activity (in Tripoli). I know my membership number will revert to my original one as those are 'issued for life'. Given I've been inactive in Tripoli for some years should I be doing a New Member Application or a Membership...

I just did a quick search but I couldn't find any posts regarding Big Red Bee's new 50 kilometer GPS unit. It looks like it hit the market mid October 2019. It's a very high altitude GPS unit that will not lock out above 50 km* like the uBlox chipsets do. Here's the BRB blog post announcing the...

I'd never heard of a Quectel L70 GPS chipset but this definitely caught my eye. "Balloon mode, for high altitude up to 80km" https://www.quectel.com/product/l70r.htm The chipset seems to be integrated in a number of cheap GPS trackers with LoRa radios. Here's an example...

Lately I've been looking into small/compact cameras to fly on-board smaller rockets. Basically vehicles in the 2.1" diameter range and smaller. I've got a GoPro Hero Session 4 which just fits but I think we could do better. Plus the Hero Session line has been OOP for some time now so moving...

Back at Balls in 2013 I purchased a RouseTech 38mm flush aft closure from Jack Garibaldi of What's Up Hobbies. I used this hardware to couple a 38mm to 54mm two stage stack I attempted to fly twice in 2015. That project was unsuccessful and as a result I lost my AeroTech compatable 38mm flush...

As mentioned in a previous thread a couple weeks ago I flew a L935 which uses a Pro54 6-GXL casing. All Pro54 6-GXL reloads are listed as plugged on CTI's website. That said, the CTI Pro54 L935 motor I flew, whilst being labelled as a plugged motor, actually WASN'T plugged, much less threaded...

Recently I flew a CTI L935 (P54-6GXL casing) with the CTI manufactured 54mm tailcone. I've previously flown the same tailcone on a K300 flight and it was fine afterwards. This time, well, not so much. As you can see below, the aft end of the tailcone received significant damage from the L935...

Subject says it all. I'm looking to get an idea of what speeds Top Flight X-Type drogue parachutes (both standard and Ultra lines) can reach before the parachute fails. I'm looking to use them in a couple projects that will have deployment at or near the jet stream so ideally I'd like some idea...

Does anyone out there know the diameter of the core in a CTI L265 mellow motor? Basically I'm looking for the value of d in the image below. I've got one of these motors on order to use in a sustainer and I'd like to start getting everything together to make some staging pellets to both test...

Good luck! Wish I was there.

Hi All, Anyone know how I can view the moved Build thread referenced in this post title? When I attempt to click on the link I'm met with a permissions error (see below). Cheers.

So for years we've been talking GPS and how to best receive packets from your transmitter to tell you where your rocket is. Historically my GPS rocket tracking experiences have roughly followed this pattern. 1) receive packets from the GPS tracker/transmitter at a 1Hz frequency during descent...

Hello all, I was hoping I could get some advice from y'all. I've received my PML AMRAAM 2.1 (29mm) and Binder Thug (38mm) and I've got a couple questions regarding the builds. These kits are quite different from my Aerotech Initiator, specifically the lack of a thrust ring and thrust ring...