<a href="https://www.dailymail.co.uk/sciencetech/article-10186369/The-future-satellite-launches-Startup-CATAPULTS-prototype-vehicle-space.html" rel="nofollow">https://www.dailymail.co.uk/sciencetech/article-10186369/The...</a>
has some more info:<p>"A 10ft-long projectile was rapidly accelerated to thousands of miles an hour in a rotating arm before being released for launch 'in less than a millisecond'.<p>The first suborbital flight used about 20 per cent of the accelerator's full power capacity and reached a test altitude 'in the tens of thousands of feet,' Yaney said.<p>The vehicle used did not have a rocket engine onboard but SpinLaunch does plan to add one, as well as other internal systems, in future test flights.
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Questions:<p>1. How high did it go?<p>2. How fast was it going when it exited the launcher?<p>3. How much did the launched object ("lawn dart") weigh?<p>Q1 is most interesting. Q2 is right behind Q1.