When you start on the runway with the ready state the engines are running but the GPU is still attached,  So what exactly is the ready state ready for?

Bruce

Might mean READY to taxi? 

2 hours ago, Bdub22 said:

Might mean READY to taxi? 

Exactly. 

With the GPU still connected?

Bruce

2 hours ago, brucewtb said:

With the GPU still connected?

I haven't purchased the Fenix yet and I understand why having the GPU still connected might be confusing. I won't lie, it's kind of confusing to me. I think others who actually own this plane can give you better guidance than I can. BUT, if an Airbus is ready to taxi and its still connected to the GPU, the first thing you'll need to do is start the APU and the APU BLEED (as well as the beacon light). Once thats hot and bothered enough, you'll be able to disconnect the GPU and be READY for taxi. 

It's weird yes.

Maybe some with hands-on experience in ground ops can help ?

Hi Bruce,

I'm away from my PC right now. But I'm quite sure you can de-select GPU in the EFB somewhere and then save this condition as your default ready state. I had it like that automatically from the beginning.

Cheers Martin

 

EDIT: Just saw a tutorial thread for the fenix efb just a few threads below: 

EFB > Fenix Icon (first icon on the left side) > Ground Services (lower navigation list) > GPU (on/off slider)

Edited June 9, 20223 yr by Avi8tor

You can save any of these state as your default state.

"Ready" I have never used, you would think it means "ready to take off" as thats the "normal" state when starting on a runway.

You would not be connected to the GPU/PCA for "Ready to Taxi". As you would be pushed back with engines started.

So I have no idea Frankly 😄🙄

2 hours ago, Bdub22 said:

if an Airbus is ready to taxi and its still connected to the GPU, the first thing you'll need to do is start the APU and the APU BLEED (as well as the beacon light). Once thats hot and bothered enough, you'll be able to disconnect the GPU and be READY for taxi. 

If it's ready to taxi the engines are already running so you do not need the APU or its bleed air. You can just disconnect the GPU, the engines are already powering everything. Very unusual using APU to provide bleed during takeoff too, usually just turn the packs off for 5 min. That goes for most airliners, not just Airbus.

Edited June 9, 20223 yr by ckyliu

7 hours ago, brucewtb said:

With the GPU still connected?

Bruce

One of the checks you do before pushing back is to make sure doors are closed, chocks are removed and GPU is disconnected. Part of being a pilot. 

1 hour ago, ckyliu said:

If it's ready to taxi the engines are already running so you do not need the APU or its bleed air. You can just disconnect the GPU, the engines are already powering everything. Very unusual using APU to provide bleed during takeoff too, usually just turn the packs off for 5 min. That goes for most airliners, not just Airbus.

I am told, only time packs are turned off is for a very short runway or high altitude takeoff. 

@Bobsk8Highly dependent on operator SOP, I know for easyJet almost all takeoffs were packs off pre-COVID.

But almost no one is using APU during takeoff on any type. And the Airbus ain't no Trident 3B (very niche reference there, kudos to anyone who remembers the four engined tri-jet!)

Edited June 9, 20223 yr by ckyliu

3 hours ago, ckyliu said:

very niche reference there, kudos to anyone who remembers the four engined tri-jet!

I didn't, but as you mentioned it just had to Google it. Interesting!

Yep, a giant APU made (partially) of plastic and derived from a VTOL engine that produced over 5,200 lbf to assist takeoff. Automatic start from the overhead like a normal APU but had a switch for IDLE or CLIMB near the pedestal (shown above), throttling was otherwise decided by system logic and automatic shut off once established in the climb. A classic British bodge job really 🤣

David Maltby and Saverio Maurri made a freeware Trident for FS9, with a virtual cockpit and working APU booster engine! If you still have an FSX install you can try it out, it's certainly novel. And deafening. Described as "modern in an old fashioned way" like an episode of Thunderbirds, with it's offset nosegear, leading edge slats, autoland, in-flight reverse (with 10,000 fpm descent!) and powered cabin doors; I don't think much of the way of thinking made it to Airbus, although Hawker Siddeley's descendants continue to design and build Airbus wings to this day. And BA's early A320s had a Paravisual Display (PVD) barberpole on the glareshield for rollout guidance.

Edited June 9, 20223 yr by ckyliu

I love the Fenix product, but find it very odd that a GPU and air cart are part of the standard start states.  More so when parked at jetway at a major US airport.  Personally, I can not recall the last time I saw a power cart connected to a jet liner.  Also odd is that when a gate, the FBW allows for 'ext power' as expected, but Fenix (at the same gate) does not have this option unless the GPU is attached.