I had heard that O'donell's may start producing glow plugs again, but it looks like their website is down. I hope this is not bad news. Anyone know what is going on?
Jeff
Looks like Castle came out with the smaller version of the Hydra XLX 2
https://www.castlecreations.com/en/marine/hydra-x-8s-33-6v-esc-8a-peak-bec-010-0175-00
Here is a magnetic switch.
https://www.featherweightaltimeters.com/av-bay-components.html
I've used them on a few different rockets. Work very well but orientation matters when installing them. They also work through carbon fiber. But remember that even if the device it is controlling power...
Great looking boat. Thanks for sharing your build. I've learned a lot. But I have a question about the boat stand you're using in the pictures above. Is that something custom you made?
Thanks,
Jeff