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Thanks all for your responses, thats really helpful. Sorry for the slow reply, got distracted. @cerving Thanks too, I was reading the Quantum manual and I can see you wait until the velocity is arbitrarily low before arming deployment channels. Not that I doubt the implementation of course, I...

Yeah why not? Acceleration should become -g

@AllDigital thanks. A mach-lockout implementation is actually where I'm going with this. I'd like to be able to detect motor burnout in addition to apogee, so tuning the implementation to be mach-transition-insensitive will be key. I've seen how Eggtimer do it, was hoping to be able to be a...

Hi, Would any of you lovely folk be able to share some barometer based flight data with me where your rocket travelled supersonic? I'm trying to understand the effects of supersonic speed on barometric altimeters. I understand that the air behind the shock is likely to be subsonic and at...

Great, I'm going to redraw those schematics with the updated sizes for BT 101

Am I right in thinking you upscaled this https://www.rocketryforum.com/threads/estes-pershing-1a-clone.150742/page-2#post-1863450 from 1.25" diameter to BT-101? If so I'll start having a go at the dimensions

@Leo Do you have the OpenRocket/other simulation file for your build? I'm in the process of printing it and having that would save me re-working out exactly where to place everything from reverse engineering the dimensions you've used. Thanks!