2 ms·
This doesn't make sense to me. I would assume the engines starting by themselves would introduce enough error to throw the entire system off. Let alone natural
by aeonik 2y ago
This doesn't make sense to me. I would assume the engines starting by themselves would introduce enough error to throw the entire system off. Let alone natural seismic events in the ground, plus wind.
I would guess you must solve the 3D problem at least to some degree.
- ethbr1 2y agoI'm not a rocket scientist, but I think thrust is pretty constant at that scale. That's why they start, spool up, then release from cradle. Vs something like a Polaris SLBM that has a much more variable guidance problem It'd be curious to see how early ICBM and SLBM guidance systems differ.
- kens 2y agoI haven't looked at submarine systems in detail, but my understanding is that the big problem is that an ICBM knows where it's starting, but the submarine travels. So submarines have super-accurate inertial navigation systems on board to determine their position.
- ethbr1 2y agoI was thinking more for the sequence where it broaches the surface then lights its engine. https://m.youtube.com/watch?v=h5KejRbD5s0&t=34s https://m.youtube.com/watch?v=h5KejRbD5s0&t=34s That's a lot more dynamic of a launch orientation. Which way is it rotated? Is it inclined off vertical?