EGT

Hi, Apologies for the delay in replying. I have done some extensive tests, and the following are my observations. Sounds: * I checked my sliders in X-Plane - all maxed. I discovered my headset was set as system COMMUNICATION DEVICE, and not HEADPHONES. This seemed to make a minor difference in quality due to the max bitrate of the output. * Nose gear RETRACT sound - this only plays ONCE! Once you have taken off and retracted the gear, it NEVER plays again unless you land, AND THE NOSEWHEEL TOUCHES THE GROUND. I'm assuming there is some air/ground logic tied to the nosegear, and for some reason the gear retract audio is dependent upon the aircraft having been on the ground. You can replicate this by flying around and just cycling the gear. Extension plays always; retraction only plays on the first retract cycle since being on the ground. * AP disconnect sound is practically inaudible, even with headphone volume turned up and being deafened by the engine noise. * Wind noise is extremely quiet if it is present. I flew at 300 kts and couldn't discern any difference in noise. DME: * DME speed and time display - this is bugged. It works as expected as long as the aircraft trajectory is in the 180 cone flying AWAY from the station. As soon as the aircraft has any closure rate with the station, the DME speed/time reads zero (e.g., flying directly towards the station still reads zero). Flight Director/Autopilot: * HDH mode - I checked real-world docs, and it should roll to wings level THEN hold whatever heading it is flying the moment it reaches wings level. It is NOT a simple wing-leveler; if the aircraft is disturbed after this point, it will roll back to the heading it was on. The bug is that it is capturing the heading at whatever moment ANY flight director or AP mode is engaged. This is the part that is not correct. For the avoidance of doubt, the sequence of events for HDH mode is thus: * HDH mode (e.g., all FD and AP modes DISABLED). * Aircraft is flown with e.g., a 20 degree left bank * AP is engaged. * ALT HLD engages, and HDH becomes the active roll mode * Aircraft at moment of activation is passing 210 degrees heading * Aircraft should roll to wings level, at say 200 degrees heading * HDH should enter heading-hold submode at wings-level on 200 degrees, and not any other heading that was present prior to this. HDH mode should "forget" the heading it was on when the AP is disengaged. Upon being re-engaged, it will again roll wings level ONLY, and THEN hold whatever heading it is on at that moment. The roll knob will operate as it currently does as this is correct. Confirmed working as you describe: * GPU generator (seems the default setting of 800 A is already sufficient to prevent volt drop during start) * Battery overheat * Engine fan - I compared this to several videos on YT (yes, I'm aware of the problems of sound recording and YT compression), and it sounds very similar.

Is this abandonware already? No comment from the devs?

Some more bugs: * Battery overheat test doesn't work * HDH mode (heading hold?) doesn't work as expected. Expected behavior: capture heading at moment of AP engagement * DME speed and time stops working and displays zero, or constantly counts from zero to the value then resets to zero * DME speed and time sometimes only reads zero regardless of changing frequencies, etc. * Some switch have the wrong number of positions (e.g. some 2-position switches have 3 positions) * After the first engine start, BOTH start lights illuminate with second engine start * Engine spool time/EGT peak is unaffected by battery health * GPU start current limiter has no effect

Hi, The aircraft is pressurizing regardless of how I set the panel. I also seem unable to manually control the cabin pressure, or even intentionally depressurize in-flight. It also seems the oxygen system and masks are not modeled (function thereof)?

I think the developer has abandoned the project. He hasn't been on these forums for months.

Fair enough! Would be better if there was an option for "service gear" when parked/shutdown to avoid a sim restart though...

The developer last visited this forum over 3 months ago (April 2025) so not hopeful of any updates to the MU2. There is nothing we can do about integration of the TDS into the aircraft as it requires modification of the model to do this.

Hi, After playing with the energency gear extension, I was unable to reset the system so the gear could be retracted as normal. Handles were reset and normal gear handle moved from DOWN to UP. Hydraulic caption appeared to show running, but gear did not move. Apparently no way to reset the system without restarting the sim.

Hi, It seems somes audio is missing: * DH altitude alert * Engine fan at TO thrust * No gear noise from retract/extend * Wind noise seems to be lacking (it sounds the same at 250 kts as sat not moving) * AP disconnect sound is extremely quiet

In the latest release (as of July 4th 2025) I also see phugoid behavior in IAS mode, to include descending. It takes too long to stabilize, and the pitch changes are too fast and too much to capture the speed. VOR tracking is also a little suspect. It will wander +/- of track before finally getting on course. Tested using a VOR on an island from 100 NM out. It will "get it" after 2 small overshoots of the course. It takes it about 5 minutes to stabilize.

I'll check it out again. I have two controllers, and I'm not using any other software between them and XP, so XP is using the raw inputs. I'll also check the keybinds again.

Hi, Is the engine modelling outside of X-Plane? When setting the condition levers to TAXI in the Beta range, EGT rises from 200-300 deg. C to 700 deg. C. Seems rather hot!

Hi, As I understand it, the 750 and 650 should only be powered when the radio master is ON. As it is, the 750 powers the second battery power is available, and there is no way to switch it off.

Hi, I tried to map the key bind for single condition lever "toggle between EMER and TAXI", but it does not do anything.

Hi, There are a few problems with the setting UI: * It doesn't like scaling factor (Windows is set to 150%) and so draws half off the screen (top half of the window is cut off). * Option to place the inlet covers is missing