Requested future options & improvements
1. Pressurized aircraft without cooling packs (ram-air “pack” option)
Some aircraft are pressurized but do not have true cooling packs. They use ram air plus hot bleed air to manage cabin conditions.
We’d like an option to flag an aircraft as “no cooling packs, but still pressurized”, with a built-in ram-air mixing path that can handle pressurization and basic temperature control without requiring a full pack/compressor cycle.
2. DC-powered refrigerant A/C unit (ground cooling)
On some aircraft (like the Lear 35), there is a DC-powered refrigerant A/C unit used on the ground or during taxi to cool the cabin before takeoff.
We’d like a dedicated DC A/C component in the pneumatic system, with its own electrical load, on/off control, and cooling effect on selected cabin areas, so we don’t have to fake it through other systems.
3. Doors and windows affecting cabin pressure and temperature
When doors or windows are opened, they should affect both cabin pressure and cabin temperature.
Larger openings (like main doors) could have a stronger effect, and smaller openings (like windows) a weaker one, but the core request is simply that openings influence both pressure and temperature, not just one or the other.
4. Valve fail-safe / spring behavior
We’d like a way to define a fail-safe (spring) position for valves—so when electrical power or source pressure is lost, a valve can automatically go to a defined default state (either “fails open” or “fails closed”).
This would let us model valves that move to a safe position on power/pressure loss, without needing to script everything manually.
5. Simple emergency bypass / diverter valve
We’d also like a simple two-route diverter valve that can send bleed air either through the normal pack/mixer path or directly to the cabin in an EMERGENCY mode.
The idea is just: a normal route vs. an emergency route, plus a way to switch back to normal when conditions are safe again—so we can model typical “emergency bleed to cabin” behavior in a clean, built-in way.
6. Pressurization “Rate” control (must-have)
Many aircraft have a cabin climb/descent rate knob for pressurization.
It would be very helpful to have a Rate setpoint (with a matching SimVar/event) so we can control how fast the cabin altitude changes, while still using the existing pressurization targets and schedules.