Latest progress on Armadillo Aerospace's amateur vertical takeoff and landing rocket project. 8 second flight. Turns towards cameraman before landing. "Hissing noise" is the 4 rocket motors. Monoprop peroxide doesn't have to be especially noisy. Plume above one motor (mounted midway out on struts) is catalysed peroxide via a leaking seal. Text update > http://www.armadilloaerospace.com/Updates/jul28_01.htm 3.3 MB video link on this page. 486 on board processor. 3 Fibre Optic gyros and 3 axis accelerometers.Rocket motor throttle solenoids draw 35 amps from onboard battery ! Manned version shortly :-) !!! John says - 802.11b wireless networking. 802.11b runs adaptively from 1Mb/s to 12Mb/s, but we don't push huge amounts over it. The laptop only sends tiny packets with joystick positions (the actual rate is variable to minimize latency, but never less than 20hz), while the flight computer sends back moderately bulky (1000 bytes or so) telemetry frames with all the sensor and state information at a constant 30hz rate. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.