As
groundspeed increases, the pylon will move aft in relation to that line of rivets you're looking at for your sight picture.
The Michigan-based company (offices are in Ann Arbor and Atlanta) is centered around its automation and analytics platform dubbed the
Groundspeed Adaptive Data Pipeline.
Prior to his appointment with
Groundspeed McMinis was a director of data science and data engineering at Narvar.
Your
groundspeed will be about 70 knots; a little interpolation suggests you need at least about 275 fpm climb to maintain 200 feet per nm to 1400 feet.
Slogging into the strong headwind, my
groundspeed worked to my advantage.
Slow your airspeed (and subsequent
groundspeed) as much as practical to help ensure you stay within 10 NM of the VOR.
While I did not ever need the AHRS-provided backup attitude, altitude and
groundspeed information to help out after a vacuum pump failure, it was nice to know it was just a button-push away.
I saw 100 knots
groundspeed (KGS) passing the 5 board, 80 at the 4 board, and 55 at the 3 board (all below our SOP mandatory "go around" wickets of 100 KCAS at the 4 board, or 80 KCAS at the 3 board).
At 1450, about the time the airplane would arrive in a no-wind situation, the pilot sent his wife a text message stating his ground-speed was "79 knots." Around 15 minutes later, the airplane's
groundspeed had slowed to about 60 knots, according to ATC radar.
A descent rate over 1000 fpm for an aircraft only doing 94.6 knots
groundspeed (see airspeed or the GPS) is a problem.
At $899, the Stratus 2S has all the bells and whistles on the IS and adds an Attitude Heading Reference System (AHRS) giving backup attitude, altitude and
groundspeed on the iPad, dual-band ADS-B traffic, an automatic flight data recorder, WiFi security to allow the pilot to hide the network name and/or add a password and a pressure altitude sensor that also powers ForeFlight's cabin altitude advisor.
As I begin my last inbound leg, I am indicating 240 knots
groundspeed, which equates to four miles a minute.
