Rob H. wrote:
I had been wanting to change the address on my site for a while and
finally got around to it. Here is the new location for all posts
starting today:

http://55tools.blogspot.com/


Rob
1428 Reminds me of a PPI, Plan Position Indicator. The disks visible
thru the side are likely ball and disk variable speed couplers - some
call them integrators. COmputes Sin and Cos of airspeed windspeed
vectors to get ground speed, if I remember correctly... /mark