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C90A tips needed.

  • Thread starter Thread starter Badger
  • Start date Start date
  • Watchers Watchers 2

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Badger

Well-known member
Joined
Dec 11, 2001
Posts
95
I fell into flying a C90A for a side-gig equiped with Raisbeck props and Pitot intakes. I've got a good bit of time in the King Air 200. The only differences I've been able to come up with (and believe me, I'm digging for info, it's one of those 'self-checkout' part 91 deal).

1) 5 Pumps on / 5 off @ shutdown. (hot bus)
2) Lead-Acid Battery, quick recovery and no need for cross generator starts
3) Fuel system, fill Nacelle 1st then mains. System runs Main->Center holding tank->Nacelle.
4) Run Engine Heat for ground ops (FOD protection?). This one's very couterintuitive.

Some knick nacks / switches that I haven't been able to get info on...

Actuator Standby (L and R) (boots?)
Generator Tie Bus (just been running in Normal). Would you use for a single generator failure? haven't seen this in the 200.

Anyone with experience in a like-kind, please drop it here or PM.

Thanks
 
I too am looking for some C90B information. I have zero time in the aircraft and will be making the move from a Baron 58. Any help is appreciated. Can't wait to get my hands on that EFIS!:)
 
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C90

I'm not trying to be a jerk, but I'd make sure you're insured in the plane before you fly it. I don't know about all insurance companies, but I do know of at least two underwriters that would require differences training before making the shift between a 200 and a C90A.

1) 5 Pumps on / 5 off @ shutdown. (hot bus)
Only 3 of those pumps are on the hot bus on serial #'s 1350 and later

2) Lead-Acid Battery, quick recovery and no need for cross generator starts
Don't know what you mean by "no need for cross gen start because of leads acid" If your talking about the need to pull a gen off-line through 11% ,it has nothing to do with lead acid. Power does not run through the current limiter, at least on the later ones.

3) Fuel system, fill Nacelle 1st then mains. System runs Main->Center holding tank->Nacelle Sounds good. Also there is no motive flow pump as in the 200, if you lose transfer capability, you leave 158 (i think) pounds in the mains

4) Run Engine Heat for ground ops (FOD protection?). This one's very couterintuitive.
Never heard of such a thing. You do run Engine Anti Ice, but that has nothing to do with heat.

"Some knick nacks / switches that I haven't been able to get info on...

Actuator Standby (L and R) (boots?)
Generator Tie Bus (just been running in Normal). Would you use for a single generator failure? haven't seen this in the 200."

OK. Now my jerky side. It sounds as though you've already been flying the plane. If this is for a right seat position or you've been flying with an instructor, please disregard. But, the above quoted statement indicates that you aren't understanding what is printed in the Flight Manual or haven't read it. Now for answers to your question.

Actuator Stby - nothing to do with the boots. Its the actuator for the Engine Anti Ice. You have a Main way of powering it, and a Standby way of powering it. You only have 1 actuator though.

Generator Tie Bus (just been running in Normal). Would you use for a single generator failure? haven't seen this in the 200.

Thats because the electrical system is an ENTIRELY different animal. It has nothing to do with gen. failure. There isn't enough room here to explain a Triple Fed Electrical System.

Good luck with the plane, and really, if the insurance company isnt making you go to school, get some formal training on a least the electrical system. (assuming you're PIC) Fly safely
 
You can't save em all, prpjt.
 
I did get a lot of typing practice though. Aaahhh, always a silver lining. Have a great weekend.
 
If you can find someone with a Flight Safety manual to borrow, it would help. (Of course, better to attend yourself, as previously posted).
I've always understood that FS doesn't sell their manuals unless you take a course, too bad. (If this is not correct, someone please pipe up, there's a few blue notebooks I'd like to get!)
 
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If anyone has a C90B manual, please PM me.
 
16 hrs. & 400 pages later.

Thanks for the positive comments. I've been imersed in the POH while killing time on the road. It's a pretty straightforward airplane once you get a good look at the book. Nobody's an expert with 25 hours in a specific airplane, flightsafety or not.

and yes I meant the 'Engine anti-ice' , I hope I didn't offend you or your ice vanes PJ.
 
Just a quick point on the actuator standby.

It sounds like the C90A has the same type of system as we have in the 1900D. There are two motors per engine to operate the one actuator on that engine. We alternate between standby and main motors to operate the actuators in order to "extend the life" of the motors. This may be something that you look into to see if it will benefit you as well.
 

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