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Another option could be large plastic wine glasses. Cut off at the stem and you have the start of a good nosecone. Not sure if they go up to 3 inch but since COVID it wouldn’t surprise me.

https://www.ebay.com.au/itm/915MHz-100mw-V3-0-XROCK-Radio-Telemetry-Module-Bluetooth-Box/222054216486?hash=item33b3767326:g:3v8AAOSwZ8ZW53wa That is one I just found, you can build your own using the 915 transceiver, a Bluetooth module and a USB power pack. Getting it to work with the rocket...

Natty did get his system going, I can’t remember what was actually wrong. I still use the laptop mainly but I also played with an arduino and lcd screen that worked reasonably well (until I tried to add direction finding). Also you can now buy a similar radio link with Bluetooth built in to the...

https://www.rocketryforum.com/threads/25-gps-solution.141685/ https://forum.ausrocketry.com/viewtopic.php?f=32&t=5240 Has been done a few times. The software options for mobile devices and the link between the receiver and display device is where most DIY versions come unstuck.

Does anyone have an openrocket file for the big kahuna? It would be interesting to see exactly what was included and dimensions of the fins.

https://www.instructables.com/id/Geo-Data-Logger-ArduinoGPSSDAccelerometer-to-l/ This instructable is nearly exactly what you are after just swapping the accelerometer with your barometer.

https://navspark.mybigcommerce.com/ns-hp-gl-gps-glonass-rtk-receiver/ A bit cheaper RTK solution considering both systems work best with 2 units (one as base and one as rover). NavSpark can accept free corrections from a NTRIP server, not sure if the U-Blox can.

If it’s the same one I got the picture in the water shows the best use for it. Severely overbuilt for rocket use and quite heavy. Would possibly be suitable for a drogue chute in a really large build.

AMW has CTI clear nose cones for sale https://cart.amwprox.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=809&virtuemart_category_id=46 Available in 38mm as well

Automotive or agricultural ignition switches are another option that tend to have higher amp ratings.

Looking at both the TRS manual and the spec sheet for the individual components, I can’t see any reason for it to need to be mounted in any particular orientation. The only concern I would have would be the RF antenna placement. Personally I would mount an SMA plug and use a bulkhead pigtail to...

Another module worth looking at if you don't mind a bit of soldering is the 'gms-g9'. It is multi-constellation and runs on 3.0-4.3v making it ideal for a 1s lipo. I am not sure if it has flash memory or not, I will try to test one tomorrow and will let you know.

The NEO-7N is meant to have programmable flash and can be found quite cheap, might be worth trying one of the copies of it.

give that a try. I added a tiny streamer to the booster just so it simulated properly, openrocket likes to have a recovery option in each stage. It will no doubt need some tweaking, as I just copied your centering rings and inner tube from the sustainer. Hopefully that works on your system as I...

For reference, I have only used a 1s lipo on the 100mw radio. I believe the 500mw radios have a higher power requirement and have been told that the rfdesigns 1w radio requires a solid 5v and don't like being powered from a USB port.

I use a 1s 600mAh batteryhttps://hobbyking.com/en_us/turnigy-nano-tech-600mah-1s-35-70c-lipo-nine-eagles-solo-pro-328-eflite-mqx-120sr.html?wrh_pdp=3 and have left it on for up to 8 hours with it still sending a strong signal. I accidentally left one running for about 20 hours and it was dead...

I haven't tried the mission planner as a tool for just the radios, but have used the 3dr tool and the RFdesigns tool. I found the 3dr tool to be the easiest to use for what we are trying to achieve, but found the RFdesign tool best for setting up systems with multiple receivers (laptop and...

ublox ucenter can receive nmea data, display on a google earth image, display coordinates and save a .kml of logged points. The only thing I have found that it cant do is give me directions or a bearing to my tracker. I use my windows tablet with openrocket and ucenter at my set up table and...

The radio module in these boards can run on 2.4-3.6v the have a LDO regulator onboard to regulate the 5v down to 3.3. They seem to run fine across the full voltage range that a 1s lipo provides . If anyone has any data on if differing voltages affect range it could be interesting.

I looked at that unit and as long as you use a good power regulator it should be fine. According to the data sheet the maximum input voltage is 3.6v. A lot of the other raw chips or modules can handle 3-5v which means they can run direct from a 1s lipo.