[AR] Re: Spin.
- From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
- To: Arocket List <arocket@xxxxxxxxxxxxx>
- Date: Thu, 11 Nov 2021 13:42:05 -0500 (EST)
On Thu, 11 Nov 2021, Anton de Winter wrote:
...it looked like the launcher would provide (iirc) ~25-30% of the delta
V required for orbit which didn't seem like much and therefore not worth
all the hassle. However, I didn't take atmospheric drag into
consideration at all. Maybe that makes things work out better?
Worse -- it means the projectile is slamming through thick air at high
speed, producing nasty aerodynamic and thermal loads, and a substantial
negative delta-V from drag, whereas an ordinary liquid-fuel rocket reaches
such speeds only at high altitude in much thinner air.
Henry
Other related posts: