>I wonder what scale you would need to get the rocket into space/orbit? There's a great "what if" xkcd about using solid fuel model rocket engines (the same ty

>I wonder what scale you would need to get the rocket into space/orbit? There's a great "what if" xkcd about using solid fuel model rocket engines (the same type used in BPS.space's rockets) to get to space and orbit. https://what-if.xkcd.com/24/ https://what-if.xkcd.com/24/ The summary is that you may be able to use a stupendously large number of them to get to space, but orbit is physically impossible. You'll need a different propulsion method. The smallest rocket that has ever carried a payload to orbit is the SS-520. It's ~30 feet tall, ~2 feet in diameter and weighs ~5,700 pounds. It set the record in February 2018, so it's a pretty recent record.