3 ms·
I'm wondering if the engine shutoffs on the way up were deliberate, so they could get data on running on 3,2 and then 1 engine.
by codeulike 6y ago
I'm wondering if the engine shutoffs on the way up were deliberate, so they could get data on running on 3,2 and then 1 engine.
- qayxc 6y agoThey looked planned. I think they tested the full array of required operations: shutdown, gimbal, throttling, re-ignition.
- wongarsu 6y agoEven in normal operation it might have been useful to throttle down the engines in order to ascend a bit slower (less drag). If you have multiple engines, shutting some of them down is a convinient way to throttle.
- seg_lol 6y agoIt was a wonderfully designed test. I'd love to hear a presentation on test design, the mission profile and what data they were looking at with each one. I assume SpaceX has the same video feed with superimposed telemetry. I'd love to know turbo pump pressure and rpm during landing.
- smiley1437 6y agoIf you look at the timer, it's almost certainly planned Engine 1 cuts off 1m45s after launch Engine 2 cuts off 1m28s after engine 1 Engine 3 cuts off 1m28s after engine 2 and then SN8 goes into glide testing. The extra time on all 3 engines is probably to gain sufficient height?