Actually it's an FS issue. All the default airplanes do it as well as do most of the addons (freeware and otherwise) unless the FDE guy knows how to slow it down right. I'm not sure exactly what's required, but I know that if you slow down the spool-up, you have to adjust the rest of the flight model in respect to the engine performance to keep it accurate throughout the flight regime.
Well, FSUIPC is a required module for many addons, including VATSIM, so it's not an option to remove, especially since my throttles won't work otherwise.
I'm surprised that no one on the BETA test reported the problem too if it's FSUIPC though because most everyone uses it. There may be something else.
Okay, I tested the configurations with both my Saitek throttle (single throttle) and my CH Throttle Quadrant. Here's the results -
Scenario 1) 4 throttles mapped via FSUIPC as "Direct to FSUIPC" - TMS does nothing but look pretty. No active adjustment of any throttle axis during operation, tested multiple scenarios including changing temperatures while throttles were in proper range and all remained where set by hand.
Scenario 2) 1 throttle mapped via FSUIPC as "Direct to FSUIPC" - Same as Scenario #1, TMS had no effect on engine operation.
Scenario 3) 4 throttles mapped via FSUIPC as "Send to FS as normal axis" - TMS forces all throttles to 100%. No exceptions. Nothing I did got them to go to anything but 100%.
Scenario 4) 1 throttle mapped via FSUIPC as "Send to FS as normal axis" - Same as scenario #3. TMS simply forced the throttle to 100% every time no matter what I set within the TMS control panel.
Scenario 5) 4 throttles mapped via FS (using the "Engine x Throttle Axis" in the settings) - CH Throttle Quadrant had no effect on engines at all. This is an FS issue not unique to this model.
Scenario 6) 1 throttle mapped via FS (using the Throttle Axis assignment in the settings) - Same result as Scenario #4.
Unfortunately, this means that I either get a completely wacky result from the TMS where no matter what the engines are set to 100% or I get nothing at all.
Are you still going to do the Quiet Trader variants? My former employer is in the process of converting an ex-Air Wisconsin 146-300 into a freighter and it'd be cool to be able to have the "before" and "after" of the aircraft.
I need to do another flight to test it, but it seems I'm having the same problem with the TMS that I have with a couple of other similar systems. I use a CH throttle quadrant, so I have a separate axis assigned to each throttle and the TMS doesn't seem to actuate the thrust at all even with the arrows all out as the engines will not synch and they are not holding the set temperature as they are supposed to even though I have activated the system per the manual.
The only thing I can think of that may be causing it is that I have all 4 throttles mapped in "Direct via FSUIPC" mode instead of as "FS Controls". Have you tested this and determined whether this might have an effect on proper operation of the TMS?