1 minute ago, taguilo said:

THis is not the case. PT6 is a free turbine, it means the propeller gearbox is not physically connected to the gas generator turbine. The electrical generators are in fact "starter generators" which means they are used both for starting the engines and providing electrical power to the systems. But they can't work both sides as same time. While in starter mode the generator side is inoperative, which means to bring generator power online you need to have the Starter switch in OFF position. BTW this is a bug in this KA release, easy to fix. For the Generator to come online the N1/Ng  turbine needs to be running above 50 % IIRC ( notice low idle is ~ 62 %).  Below those revolutions  the L/R GEN warning light will illuminate showing the generator is offline. In other words, generators available power depends on N1/Ng rpms and NOT Np (propeller) rpms

Hope this helps.

  

Thank you for explanation!

26 minutes ago, taguilo said:

For the Generator to come online the N1/Ng  turbine needs to be running above 50 % IIRC ( notice low idle is ~ 62 %).  Below those revolutions  the L/R GEN warning light will illuminate showing the generator is offline.

Thanks for this explanation. I can confirm it's exactly like this in terms the prop position. What's a bit confusing is that when the prop is feathered, the L DC GEN light is extinguished, although checking the voltmeter the generator is offline.  

This aircraft is fascinating. The system depth is incredible. Just realised that if I only have the right engine running with R GEN online, then turn on ELEC HEAT, the voltmeter shows negative amps i.e. the right gen cannot handle the load. 

Edited October 13, 20223 yr by Cpt_Piett

2 minutes ago, Cpt_Piett said:

Thanks for this explanation. I can confirm it's exactly like this in terms the prop position. What's a bit confusing is that when the prop is feathered, the L DC GEN light is extinguished, although checking the voltmeter the generator is offline.  

I guess this behaviour comes from a misunderstanding on how turboprop starter generators work compared to piston aircraft. It is important to understand that generator is "running" together with the Ng (or N1 if you prefer that name) and the L/R GEN light tells whether or not the generator is providing power. The pilot can "electrically" disconnect a generator from the electrical system, but he/she cannot "phisically" disconnect it from the gearbox attached to the Ng turbine. That must be done by maintenance personnel on the ground. Different is in some airliners that I know; for example in the Airbus A340 a generator that is overheated can be disconnected first from the electrical system and if the problem persist, physically from the gearbox through a guarded switch in the overhead (in this case cannot reconnect in flight, must be done on the ground) . BTW, there is no GNE OVHT warning & caution messages that I know of in the real KA, which are indeed present in this mod. Perhaps consider to remove this in an uncoming SP (?) 

Hope this helps

 

 

 

Can anyone comment on how it compares to the Milviz KA 350 in P3D(minus the crash to desktop issues of course)? Do all the systems work as good? If it is good as that plane was I would buy it right now, loved that plane. And. You could program the beta range with the Milviz software, which worked great.

28 minutes ago, taguilo said:

BTW, there is no GNE OVHT warning & caution messages that I know of in the real KA, which are indeed present in this mod. Perhaps consider to remove this in an uncoming SP (?) 

Hope this helps

Thanks again, much appreciated. I'm getting the GEN OVHT warning when GEN is ON while starter is still on. 

8 minutes ago, Cpt_Piett said:

Thanks again, much appreciated. I'm getting the GEN OVHT warning when GEN is ON while starter is still on. 

Which is of course wrong, as generator should not come online unless strarter switch is in OFF position. And viceversa, switching starter out of OFF should trip Generator offline if it was online.

5 hours ago, rayharris108 said:

Thanks Captain 

so how does one prevent that happening? on take off I put throttles to max for example…

can I carry on flying now? Or is the damage done!

appreciated

 

What Orchestra_NL said…don’t go full ham on the the throttle at takeoff. Good way to cook a pt6. Depending on altitude and temp, 100%n1 while keeping itt below 800 (a buffer here isn’t a bad thing…750-775). With that said, I have not had a chance to load the black box king air up as I have been on a work hitch but It’s my Friday today so I’ll be back home tomorrow and see. 

16 minutes ago, Daytona125 said:

Can anyone comment on how it compares to the Milviz KA 350 in P3D(minus the crash to desktop issues of course)? Do all the systems work as good? If it is good as that plane was I would buy it right now, loved that plane. And. You could program the beta range with the Milviz software, which worked great.

MV KA350i is a systems realistic (99%) aircraft. This mod is not quite (especially the engines) but has the potential to become, considering the awesome work on the VC visuals and animations

 

Edited October 13, 20223 yr by taguilo

So I just feathered props and generators didn't trip

28 minutes ago, Cpt_Piett said:

Thanks again, much appreciated. I'm getting the GEN OVHT warning when GEN is ON while starter is still on. 

The product manual refers to this as being an indication of exceeding the starter limitations. How long are you running the starter? (30 seconds on - 60 seconds off, 30 seconds on - 60 seconds off, 30 seconds on - 30 minutes off are the limitations.)

49 minutes ago, Yoda967 said:

The product manual refers to this as being an indication of exceeding the starter limitations. How long are you running the starter? (30 seconds on - 60 seconds off, 30 seconds on - 60 seconds off, 30 seconds on - 30 minutes off are the limitations.)

If I leave the starter on, eventually the GEN OVHT warning will light up, even though I haven't turned on the generator. 

I would expect that, from the product manual. Turn off the starter after the engine reaches 50% turbine speed or after 30 seconds, whichever occurs first. 

5 hours ago, s.mellah said:

Also, what is this black cable showing outside the airplane ? Some external unit ? I see nothing at the end of the cable. I don't even know how to activate this item.

That's the cable that would normally be visible when using the GPU. It seems to be a glitch that appears when you open the cockpit window. It also triggers the Cabin Door alert (but that may be normal).

Edited October 13, 20223 yr by Johan217

27 minutes ago, Cpt_Piett said:

If I leave the starter on, eventually the GEN OVHT warning will light up, even though I haven't turned on the generator. 

GEN OVHT message should be removed in future SP. Even it is duplicated as Warning and Caution  (same message!).

After 50 % Ng engine is self sustaining so power draw by starter at idle for example is minimum, hence risk of overheat , unless a malfunction - is almost nil.

15 minutes ago, Yoda967 said:

I would expect that, from the product manual. Turn off the starter after the engine reaches 50% turbine speed or after 30 seconds, whichever occurs first. 

Those 30 seconds are without engine combustion (this is not in the books 😉)

1 hour ago, taguilo said:

MV KA350i is a systems realistic (99%) aircraft. This mod is not quite (especially the engines) but has the potential to become, considering the awesome work on the VC visuals and animations

 

Do you maintain them or fly them? In either way it would nice to hear your input regarding current model.