Jack Crossfire's Blog – February 2010 Archive (5)

THIS WEEK IN AEROSPACE

THERMOPILES RIDE AGAIN

MARCY 1 POV BEGINS

THE REAL MAJOR MARCY



THERMOPILES RIDE AGAIN



While many people regret burning up their lives & 401k's perfecting thermopile autopilots only to end up switching… Continue

Added by Jack Crossfire on February 26, 2010 at 12:30pm — 4 Comments

RADIOS, MAGNETS & MONOCOPTER ATTITUDE ESTIMATION

Radios were 1 incremental step after another.



USB cable hacking went a long way. Having the USB cable tied in a knot directly over the antenna jammed it. The cable was shielded but probably leaked high frequency energy from Vbus.







Next came moving the antenna outside the remote control. It seems to do better outside the case.







Antenna inside case… Continue

Added by Jack Crossfire on February 19, 2010 at 12:30pm — 5 Comments

Hammering on the Marcy 1 radio problem

The radios have plenty of range in the apartment 12ft off the ground. Put the receiver on the ground & it dies. Put the receiver on a tripod & its range slightly improves. Hold the receiver in your hand & it dies. It's as if the antennas are

getting shunted to the ground. Xbees are shielded but Marcy 1's aren't. In any case, range is far less than 72Mhz. Frequency doesn't matter.



After trying many antennas, the receiver antenna doesn't matter. It works without an… Continue

Added by Jack Crossfire on February 12, 2010 at 11:34am — 3 Comments

THIS WEEK IN AEROSPACE

MARCY 3 REVEALED, MARCY 2 REVEALED, MARCY 1 RADIO DISASTERS



MARCY 3 REVEALED







There's the current Marcy 3 plan. Unfortunately not enough space to build her. Basically install a fuselage around

Vika 1. It's obsolete but it was the real Major Marcy's plane & we can

use the tail fins as landing gear. No-one knows if She actually flew

one or if She just… Continue

Added by Jack Crossfire on February 5, 2010 at 1:39am — 3 Comments

Asian air space Eclipses North America As World’s busiest

So much for America's over crowded airspace as a reason for banning UAV's.

aero-news


Theoretically the region between Japan & India contains most of the world's traffic, has more aircraft per square mile than US, yet is more flexible for unmanned traffic.

Added by Jack Crossfire on February 2, 2010 at 8:54pm — 2 Comments

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