NOT GIVING UP ON THOSE RADIO CONTROLLED COPTERS: Reader Christopher Fox writes: “Not to flog a dead horse, but I bought 3 of these, and the price is down yet again. Now we’re down to $21.75 for a brand new RC chopper. Best $20 you can spend today.”

It says $22.19 at the moment, but still cheap. And mine has been fun, and still works!

UPDATE: Reader Paul Bressie still likes ’em: “Bought two for my boys. They’re fantastic. Much more stable and usable than the, um, competitor. After they go to bed, I fly ’em. Great controls!”

And Aleta Jackson at XCOR writes:

I have now purchased _fifteen_ and have just been asked for two more. The young engineers are getting ready to have helicopter wars out in the hangar – I’ll get photos if you’re interested – and two are being sacrificed for parts: the interns get to find out what makes them tick. Great lab for them, and it’s fun for the rest of us too.

Thanks again for the very useful link!

Endorsed by actual rocket scientists!