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18 Apr 2024, 10:00 [ UTC - 5; DST ]


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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 12:05 
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Joined: 09/26/09
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Company: ElitAire
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Aircraft: Piaggio P180
Username Protected wrote:


The Piaggio seems to have a rather complex de-ice system: forward wing - electric heat, main wing - turbine bleed air heat, engine intake - pneumatic boots, props - engine exhaust and nothing for the H& V stab.

What are the ice vanes?


It does sound complicated. In practice - it works great. I especially love that ICE light that indicates airframe icing is present.

Ice vanes creates a centrifugal separator on the engine intake so ice doesn't make it to the expensive parts. Huge performance hit with them on. I'm probably a little conservative and get them when entering conditions where ice could be - rather than waiting till I find ice.


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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 12:08 
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Joined: 09/26/09
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Company: ElitAire
Location: Columbus, OH - KCMH
Aircraft: Piaggio P180
Received 2023 pricing from PWC for ESP program. Up 10.7%. Not horrendous given the price increases I've seen in our industry. I always start thinking "Hey, that's the same or more than Williams" charges...then remember I don't have a minimum hours to hit every year.


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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 12:53 
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Joined: 01/11/11
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Company: FUSION
Aircraft: B300ER B200 C90 DHC6
Username Protected wrote:
What are the ice vanes?
Inertial Separator?
Here is an interesting article from Tom Clements about Ice Vanes (Engine Anti-Ice, Inertial Separators) for PT6A- King Air:

https://kingairnation.us5.list-manage.com/track/click?u=cb98dba7e50539226f4a9572b&id=ef1615ee2d&e=b161a219eb

or

https://kingairmagazine.com/article/ask-expert-ice-vanes-important/

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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 13:42 
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Joined: 11/08/12
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Location: San Carlos, CA - KHWD
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Username Protected wrote:
What are the ice vanes?

Inertial Separator?

Yes, standard PT6 inertial separator.

I agree the deice system seems like a lot of monkey motion. Especially to me, the small boots only on the engine intake. Wings and even oil cooler intake get bleed air heat, but weirdly the engine intake gets boots. I am told it may be because the heat was too much for the composite cowling. I would’ve thought that could be overcome by a metal outer lip or something, but maybe not.
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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 13:45 
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Well.............that didn't last long.

The nose actuator is leaking hydraulic fluid. No parts are available, so will go to overhaul.

50 days and 24K-75K is the estimate.

Ugh, Matt I am so sorry to hear your troubles.

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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 14:15 
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Username Protected wrote:
… engine intake gets boots. I am told it may be because the heat was too much for the composite cowling
Possibly, but also because of the aft location of the exhaust stacks, far away from the air intakes up front.

And the “push props” are continuously deiced [automatically] from the hot exhaust gases.


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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 15:38 
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Joined: 11/30/12
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Username Protected wrote:
… engine intake gets boots. I am told it may be because the heat was too much for the composite cowling
Possibly, but also because of the aft location of the exhaust stacks, far away from the air intakes up front.

And the “push props” are continuously deiced [automatically] from the hot exhaust gases.

Yep, it's the hot air routing that is the problem. The *only* thing heated by hot air on a KA is the engine intake, which is a metal lip on a composite cowling. It's just inches from the exhaust so routing of the hot gases was easy and safe.
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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 15:55 
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Username Protected wrote:
Yep, it's the hot air routing that is the problem. The *only* thing heated by hot air on a KA is the engine intake, which is a metal lip on a composite cowling. It's just inches from the exhaust so routing of the hot gases was easy and safe.

Uh… hot air for deice comes from bleed air, not exhaust air….

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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 16:14 
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Username Protected wrote:
Yep, it's the hot air routing that is the problem. The *only* thing heated by hot air on a KA is the engine intake, which is a metal lip on a composite cowling. It's just inches from the exhaust so routing of the hot gases was easy and safe.

Uh… hot air for deice comes from bleed air, not exhaust air….


Uh......not on King Airs.......KA lips are deiced with air scavenged/scooped from the exhaust, unless you're an early 90/100 that has electric inlet lip deice.

That would be difficult to do on the Piaggio, scooping the hot exhaust and piping it from the back of the engine, to the inlet in the front.
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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 17:16 
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Username Protected wrote:
KA lips are deiced with air scavenged/scooped from the exhaust

Interesting, I didn't know that. I'd've thought that the corrosive properties of combustion exhaust would make that unworkable.

Quote:
That would be difficult to do on the Piaggio, scooping the hot exhaust and piping it from the back of the engine, to the inlet in the front.

Agreed, that would be difficult.

But Piaggio uses bleed air heat for deice in a couple places (the main wings and the leading edge of the NACA scoop for the oil cooler on the bottom of the cowl), and my personal guess seems like it'd be fairly easy to use it on the engine intake too. But I'm sure there's a reason why my personal guess is wrong.

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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 17:21 
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Joined: 08/24/13
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Location: KSMQ New Jersey
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Username Protected wrote:
Uh......not on King Airs.......KA lips are deiced with air scavenged/scooped from the exhaust


Same on the TBM. It's free heat! It flows from the left exhaust through the engine inlet and back out the right exhaust (at least on the TBM).


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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 23 Nov 2022, 17:39 
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Username Protected wrote:
Uh......not on King Airs.......KA lips are deiced with air scavenged/scooped from the exhaust


Same on the TBM. It's free heat! It flows from the left exhaust through the engine inlet and back out the right exhaust (at least on the TBM).


My KA is the same, although I think the original setup is slightly different and I have an STC to accomplish this. Parts of the circuit are Inconel and others are stainless.

IIRC correctly, the original KA setup was to scoop from both right and left and exhaust out the bottom of the lip.
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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 24 Nov 2022, 09:47 
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Joined: 01/11/11
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Company: FUSION
Aircraft: B300ER B200 C90 DHC6
King Air Hot Lips Drift:
:D
The Starship used Bleed Air for Engine Inlet Hot Lips.
Early C90s (prior to Pitot Cowls) had electric lip boots for air inlet heat.
Then, all King Airs now have the inlet lips continuously heated by exhaust gases.


Please login or Register for a free account via the link in the red bar above to download files.


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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 26 Nov 2022, 23:44 
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Joined: 07/16/12
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Location: KHEF & KCPS
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I’ve been informed by my better half that if we get a new plane, it’ll be an Avanti (or a G650). Not happening anytime soon, but a few questions to keep the thread going:

- What’s the latest on Piaggio’s ownership? Last articles from the spring talked about due diligence, but that’s about it.

- What’s availability like for ferry/contract pilots?

- Is FSI the only training option? I’ve been through twice and really didn’t like their formulaic approach to training. I’ve always preferred in-plane training.

- Lots of discussion about parts, but what about AOG support? Are most of the services centers responsive to AOG issues?

- Are there any knowledgeable, go-to brokers for the plane? Doesn’t strike me as a purchase you’d make without a broker who has a deep bench of knowledge on Avantis.


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 Post subject: Re: The definitive Piaggio P180 Avanti thread.
PostPosted: 27 Nov 2022, 05:24 
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Joined: 09/17/15
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Username Protected wrote:
- What’s the latest on Piaggio’s ownership? Last articles from the spring talked about due diligence, but that’s about it.


The situation borders on farce.
The fourth auction has again been halted and no buyer has been selected.
The change of Italian Government further slows down the process, as the sale requires approval from the Ministry of Economic Development.
Voluntary employee layoff continue, while the Unions demands to maintain the employment level and hope the Government can force Leonardo to take over.
This December marks the fourth year of receivership.


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