by Steve Waite » Thu Apr 22, 2021 11:23 pm
When using the auto-throttle during landing, if available, reverse thrust and spoilers are employed with brakes to slow the aircraft down. With all the Assist functions enabled you get help to keep the nose up with corrected attitude, the AP disables, the throttles shut off, runway steering to centerline during braking, and the flaps retract.
During takeoff you get the runway steering, the climb progresses with the rotate and does not go too steep to allow acceleration, then the gear comes up and the flaps retract, and the GPS route is engaged. The flaps will retract if you approach the maximum flaps speed, and all the other variants and situations are handled.
The goto approach is fixed with the correct GPS waypoint and you appear on the route as you do with the goto final. With the standard flight build the aircraft navs are already set up for the ILS so all that's required is to set the AP GPS-NAV switch to NAV and set APPR on, then control the descent speed with the auto-throttle.
The standard final speed is already set with a speed a little over the full flaps stall speed. Experimenting with the final speed is very easy to do with the auto-throttle and the call outs for the HSI help to know if you are on the glideslope.
Using the Computed Approach is very handy to get the approach, final and landing spot-on since the waypoints are generated with your aircraft speed and time between waypoints set in the Mission page. With that the aircraft basically lands itself.
There will be more work on those systems for example on runaways without ILS but the Computed Approach already works well with those. And I've got a bunch of Assists to do with determining the top of descent onto approach and auto-selecting speeds, that sort of thing. Top of climb already auto-selects the cruise speed and Mach speeds are followed above 300 IAS and 24000 feet.
I had a glitch in the speed restriction 250 knots 10000 feet because it was staying at 250 knots IAS sea-level, 250 KIAS is around 290 KTAS at 10000 feet.
Lots of other stuff is now working fully at last, such as all the checkboxes in the Assist page are installed and working together correctly. The complexity is huge and decisions mind-boggling so it's taken a bit longer to do the testing and retesting. Hopefully I can upload tomorrow, but I got unexpectedly sidetracked again this week so it's going to be tight.
software architect at codelegend.com
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