Carenado is working on a Service Pack, so any bugs you find, you should be sending to them.

 

They likely will not fix everything we mention, but it never hurts to try..

 

They likely will not fix everything we mention,

 

whats new.. isnt that what we used to..!

It seem's some are AC some are DC, guess we need the serial number of the aircraft Carenado modeled to know for sure.

 

"The torque transmitter measures this torque and

sends an AC signal to the instrument on the

instrument panel (DC signal on LJ-1361, LJ-

1363, and after)."

 

 

quoted from the Flight Safety C90A,B Pilot Traning Manual

 

An AC "signal" from a Torque transducer (Transmitter), does NOT define that the "Power Source" is necessarily AC.

 

The manual is talking about the change from AC to DC for the signal that represents Torque, NOT the Power Source for the Instruments that Display Torque.

 

I base the 27v versus 28v because the checklists and real C90's I've been in are exactly that way. The triple-fed bus is always 1v less than the source voltage for it, be it battery or generator and the checklists I've seen state it should be as well.

 

This is because the Buses are connected by DIODEs, (To prevent reverse current flow) and these diodes drop the voltage by about 0.7 V

 

Maybe they are just too busy to listen, while churning out the next Cookie_Cutter aircraft, with exactly the same bugs as their previous planes.

 

"Cookie_Cutter"? Carenado can be accused of a lot of things, but I don't see any of their recent efforts as stamped out or repetitive.

 

Scott

 

I was really referring to some of the Gauges they use, and the problems with using the same old "defective" gauges in new planes.

 

If they were to pay more attention to customer feedback, and FIX the code in the defective Gauges in the old planes , then they would learn from their mistakes, and not keep introducing the same mistakes into new planes.

An AC "signal" from a Torque transducer (Transmitter), does NOT define that the "Power Source" is necessarily AC.

 

The manual is talking about the change from AC to DC for the signal that represents Torque, NOT the Power Source for the Instruments that Display Torque.

 

I was referring to whether the aircraft has the old inverter style electrical system or not... which would change where items get their power from, and if they modeled the wrong connections... well, it would be a source of problems.. However, I did mis-read the statement about the torque transducer.

 

 

This is because the Buses are connected by DIODEs, (To prevent reverse current flow) and these diodes drop the voltage by about 0.7 V

 

While I already know why... it's irrelevant as to why. The aircraft fails the checklist because of it.

An AC "signal" from a Torque transducer (Transmitter), does NOT define that the "Power Source" is necessarily AC

 

 

I just finished a systems course on the C90, T-44 and in our aircraft everything is powered by DC except the Torquemeters in which case are powered by the inverters and are thus AC and come from an AC power source.

 

-Mat

 

 

* On the Garmin GPS400 (stock unit) during flight the upper half of the display window disappears off and on. It goes black.

 

  Hi,  I didn't see this in the spread sheet of bugs/fixes - I'm having the same problems.  Is there a fix I missed?

 

R/ Hangar 14