Autopilot update

[brndiar]

My Project with 2×G275 (1977 M20C)

lg,m

[59Moonster]

Yes mine is an A model. It used to be listed on G's website but has since been removed. I've talked to and will again talk with one of the Garmin tech's in charge of getting planes in and was excited for mine. However he says he is pushing for it but doesn't see much hope at this time (that was from our conversation in April 2021). 

Apparently they have concerns over lightning strikes and their servo's welding up and they don't know how to make a work around for a wood wing. So as far as I know all the wood wing planes are ineligible.

 

Edited July 13, 2021 by 59Moonster
typos

[brndiar]

FOR AVIONICS UPGRADE TO "GLASS COCKPIT" from "STEAM  INSTRUMENTS"  THERE IS ONE IMPORTANT THINK TO POINT OUT: 

There is a Phenomena known as "Roll reversal errors (steering the wrong way, i.e. making a bank angle steeper rather than recovering from it) which have been known to contribute to many  loss of control accidents in aviation.

There are 3 Formats of "SKY POINTER and Roll index"  in "GLASS COCKPITS" nowadays:

1, General Aviation (GA): roll index slaved to the aircraft symbol and located on the top of the AI.

2, Commercial: roll index slaved to the moving horizon.

3, Military: roll index slaved to the moving horizon but located on the bottom of the AI (the "sky pointer" is really an "earth pointer").

It seems to me, that "Commercial format" dominates Glass cockpit avionics replacing steam instruments in our GA fleet. 

I as a GA pilot I am used to GA format where Lower Triangle is "SKY POINTER", Upper Triangle (with roll index) is "the CASE" and is connected to seat as well as to the aircraft symbol, IT DOES NOT MOVE.

Logically, during recovery there is need to move lift vector (generated by our  wings) toward the sky the shortest way.

For recovery from a right bank (reference GA Format), the pilot moves the stick, and the roll index ("THE CASE",  THE UPPER TRIANGLE)  intuitively to the left. Analogically is it in the pitch axis: a forward movement of the stick moves aircraft symbol down and vice versa. It meas in GA Format the ROLL INDEX AND CONTROL MOVEMENTS ARE ALWAYS IN HARMONY. 

On the contrary with Roll Index slaved to Horizon (Commercial format) recovery from a bank requires the Stick TO BE MOVED IN A DIRECTION TO WHERE the roll index will go.

In one study was  found that the commercial format (roll index on top of the AI, slaved to the horizon) was almost five times more likely to produce roll reversal errors than the military or general aviation configuration.

Be aware, what and where your "SKY POINTER" is.

At the Picture below Left Commercial Format, Right GA Format at right bank and the nose too high: required is  stick to the left + forward)

Lg,

PPL only, no CFI.

m

 

 

 

[carusoam]

Great details brndiar!

Thanks for sharing them…

Best regards,

-a-