CitationII and King airs

[nerdpilot]

Why do these planes take so long to taxi out from the fbo?

 

[400A]

Why do these planes take so long to taxi out from the fbo?

They don't normally, unless they have slow gyro's or a military C-12 crew. If it is the later plan on at least 5 minutes at high idle with the props full forward.

 

[mavrck]

yeah, prolly just waiting for gyros to come up. Or, they are just remembering " Did you get the clearance? No, i thought you did!".

 

[willNOTfly4free]

The gyros in older Citations take a few minutes to spool up.

New King Airs with Collins Pro Line 21 have an ESIS which needs (IIRC) 180 seconds to come online.

 

[kingairyahoo]

The gyros in older Citations take a few minutes to spool up.

New King Airs with Collins Pro Line 21 have an ESIS which needs (IIRC) 180 seconds to come online.

120...and if the crew has any sense at all, they turn it on before plopping their @$$ in the seat so it dosent hold em up

 

[holmie]

The C12 avionics takes a long time to spool up. Even if you got the clearance prior to starting, loading the FMS is a pain. Our software doesn't let you preload departures only route waypoints so that doesn't help much. I try and keep the props in fx and at low idle if it's going to take a while to get a clearance.

 

[Kaman]

Typically, it takes a few minutes for the gyros to spool up...pick-up the clearance if it wasn't done earlier, initalize the nav. (GNS-400W and boot up the Avedyne 500 in my ship).

 

[satpak77]

The C12 avionics takes a long time to spool up. Even if you got the clearance prior to starting, loading the FMS is a pain. Our software doesn't let you preload departures only route waypoints so that doesn't help much. I try and keep the props in fx and at low idle if it's going to take a while to get a clearance.

(GNS-XLS...) Sometimes I just depart with VOR's (old fashioned) versus use the FMS, and load it enroute, or get ATC recommended heading intially.

I never used the FMS flying 135 freight at night in a Lance, I don't need it now.

the above may not be FAA Inspector legal under slant G (which we file under) but its only for 15 minutes and, well, welcome to the real world.

 

[CopilotDoug]

Why do these planes take so long to taxi out from the fbo?

I'm assuiming you're talking about a noisy ramp/FBO? I always wondered that myself. I see very few reasons why a professional crew can't be taxiing within a minute or two of engine start.

 

[BoilerUP]

I'm assuiming you're talking about a noisy ramp/FBO? I always wondered that myself. I see very few reasons why a professional crew can't be taxiing within a minute or two of engine start.

Because you can't taxi until the ADI gyro comes up, that's why...

 

[cheyflyer]

I'm assuiming you're talking about a noisy ramp/FBO? I always wondered that myself. I see very few reasons why a professional crew can't be taxiing within a minute or two of engine start.

Thats right! A "Real Professional" would taxi out head down while programming the FMS on the go.

 

[400A]

I'm assuiming you're talking about a noisy ramp/FBO? I always wondered that myself. I see very few reasons why a professional crew can't be taxiing within a minute or two of engine start.

Impossible in the Premier. You have to do the "BIT" checks before you move, or you are hosed.

 

[tracearabians]

I'm assuiming you're talking about a noisy ramp/FBO? I always wondered that myself. I see very few reasons why a professional crew can't be taxiing within a minute or two of engine start.

Gyros are expensive .

 

[CopilotDoug]

Thats right! A "Real Professional" would taxi out head down while programming the FMS on the go.

My FMS is programmed before engine start.

 

[CopilotDoug]

Because you can't taxi until the ADI gyro comes up, that's why...

How long do you wait?

 

[BoilerUP]

How long do you wait?

As long as it takes for the gyro to come up and then do the autopilot torque check.

 

[willNOTfly4free]

How long do you wait?

It can take as long as ~4 minutes to spool up. It's an electric ADI, so the ~4 minute timer doesn't start until the avionics are turned on. We can reduce the waiting time by using a GPU and having the avionics online just prior to engine start. This reduces the time required for the ADI gyro to reach operating speed since the gyro is already spinning.

The line guys are usually twirling their batons in sheer boredom and aren't paying attention by the time we're ready to taxi.

 

[Diesel]

Also if the plane shakes at all the Megitt resets itself and now you're back to waiting 180 seconds. Its enough to drive you nuts. Even if you turn it on when your getting in the cockpit it still takes forever.

 

[satpak77]

I'm assuiming you're talking about a noisy ramp/FBO? I always wondered that myself. I see very few reasons why a professional crew can't be taxiing within a minute or two of engine start.

With 1000 hours TT, you would see very few reasons.

When you get 2000 hours PIC in a turbine, re-post on this thread with your assumptions of taxi after engine start.

 

[CopilotDoug]

With 1000 hours TT, you would see very few reasons.

When you get 2000 hours PIC in a turbine, re-post on this thread with your assumptions of taxi after engine start.

Don't get your panties in a wad there, Cupcake. Whose got the 1,000 hours TT?

 

[icefr8dawg]

I wonder how much less pollution the engines put out when doing the checks vs. our two hours of APU usage. My car is coated with black apu and engine dust after a week at Teterboro. I don't bother washing it anymore before a trip.

 

[cw4chuck]

Back "in the day" when I taught in the military Citation school, I would sometimes crank engines and taxi away from the FBO before turning avionics and STBY "on". But only within the non-controlled area, and then stop and wait the 3 minutes for everything to spool up. It's the same now, with the Pro Line 21 in the new Encore. I'm sure it drives some crazy, but what are you gonna do?

 

[f-dawg]

With the Proline 21 and no gpu you have to program after start. The avionics use way too much juice to just sit there pushing buttons without a generator on line. Also, when you turn off the avionics for start all of the V-speeds get dumped.

 

[NCherches]

I fly a Bravo (Fancy Citation II) and if you use the FlightSafety Checklist like a lot of guys do the "BEFORE TAXI" Checklist has 23 Items on it!

Most "good" pilots have redesigned their own checklist... My "BEFORE TAXI" checklist has 7 Items. This makes my "TAXI" checklist a little longer but its an easy plane to handle and most taxi's are at least 3 minutes leaving plenty of time to complete these checks on the roll prior to reaching the runway.

I too program the FMS and load Freq's etc prior to startup.

I can't stand being behind a JET at the end of the runway that isn't ready for takeoff thus delaying my flight...

 

[Diesel]

Its been proven that getting as many checklist items done before leaving the chocks reduces any errors while taxing and also doing checklists. Especially if you are single pilot.

The 23 items are there for a reason, to minimize taxi confusions and runway incursions.

Reference Delta runway incursion in FLL.