[AR] Re: "How Hard Can It Be" rocket episode
- From: <johndom@xxxxxxxxx>
- To: <arocket@xxxxxxxxxxxxx>
- Date: Sun, 17 Nov 2013 20:22:42 +0100
Henry Spencer wrote on 171113:
> the Ranger landers had solid retros that decelerated them to fairly low
velocity before impact.
Fairly low velocity is relative. For Ranger impact probes made of balsa wood
their lunar impact velocity after retro braking still was at least an order
of magnitude larger than the impact velocity of the amateur rocket in "How
Hard.Can It Be" landing without a chute.
The issue here: by what means could such velocity be neutralised on impact
(over here) if the chute did not deploy. To save the electronic data.
jd
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