The tmd preset files are usually identified with a suffix like '_clean.tmd', '_takeoff.tmd' and '_landing.tmd'. A preset file is loaded after the main aircraft tmd file when the aircraft is placed onto the runway, set into final approach or somewhere on the map in the air. The preset is then loaded and all of its contents overwrites the default values of the (main) .tmd file. This way when the user selects the air start, the gear can already be retracted and the flaps are already set to up even if the gear or flaps where down before the location on the map was changed.
It is recommended to pay attention when the presets are created, it does not look good if the gear lever moves into position only after the aircraft was moved up in the air or if half of the cockpit switches change their status in the first brief moment. Especially slow elements like the gear position or flap position should be added to these preset files so that the aircraft doesn't fall from the sky on final approach or that the user has to wait for the flaps to extend when he/she wants to take off.
Not providing a preset for a particular initialization method is possible, then the Aerofly just won't change any default parameter of the .tmd file. Some simpler aircraft might not need a preset for all of the different for all initialization modes.
<[file][][]
<[modelmanager][][]
<[pointer_list_tmuniverse][DynamicObjects][]
// set flaps full
<[input_default][FlapsInput][0]
<[float64][Value][1.0]>
>
<[servoclassic][FlapPosition][0]
<[float64][Position][0.61087]>
>
<[servoclassic][SlatPosition][0]
<[float64][Position][0.47123]>
>
>
>
>
The takeoff configuration (aircraftname_takeoff.tmd) is the state of the aircraft reached just before the throttle is advanced for takeoff. Aim for a typical configuration used in every day flights on a long hard surface runway. The goal is to just advance the throttle to takeoff power and takeoff, not a single button (except maybe TOGA button for autothrottle) should be pressed to achieve a takeoff.
As programmed in the default tmd the parking brake should already be off, the mixture advanced, throttle at idle, gear down. There is no need to repeat this in the configuration file.
The clean configuration (aircraftname_clean.tmd) is loaded when you move your aircraft on the map in the location dialog.
The landing configuration (aircraftname_landing.tmd) is loaded when the aircraft is set to the approach on the location dialog on the extended centerline of a runway. The aircraft is completely ready for landing, no switch or dial has to be adjusted.
These are potential future configurations but it might be done differently, too.
As of 2019-07-07 there is no cold and dark configuration file yet. We recommend waiting for that to arrive to stay consistent with default aircraft. Changing the default tmd to be cold and dark may work but it could also cause significant issues later on and will require you to update your aircraft.
The cold and dark state is the state when the aircraft is completely off before any power is applied to the aircraft.
As of 2019-07-07 there is no turn around state file yet.
The turn around state skips all of the initial system boot up, as if the aircraft was just parked and everyone deboarded and the next scheduled flight is being prepared.
As of 2019-07-07 there is no state for this.
The ready for push and start state bypasses all of the time consuming tasks during pre flight.