29 Mar 2024, 04:15 [ UTC - 5; DST ]
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Post subject: Re: The definitive Piaggio P180 Avanti thread. Posted: 15 Mar 2021, 14:31 |
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Joined: 08/24/13 Posts: 8409 Post Likes: +3662 Company: Aviation Tools / CCX Location: KSMQ New Jersey
Aircraft: TBM700C2
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Username Protected wrote: For a TBM700 here is the effect of power with a headwind. 90 kt headwind, FL280, ISA, fuel left at an 800nm leg.
You only gain 9 gallons going 800nm by using Long Range Cruise, and add significantly to the time. GpH TAS Endur G/S fuel to 800nm Max Cruise 52 297 4.23 197 192 Nor Cruise 50 290 4.40 190 190 Inter Cruise 45 276 4.89 176 184 LRC 36 237 6.11 137 183 Wind (tail+/head-) -90
The crossover point is 102kt headwind. At that point Max Cruise burns the same as Long Range Cruise to 800nm, 213g. Over that headwind you burn less by using Max Cruise. Numbers look all wrong...... Maybe it's me.
Yea, those numbers were for 80kt headwind....
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Post subject: Re: The definitive Piaggio P180 Avanti thread. Posted: 15 Mar 2021, 14:34 |
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Joined: 08/24/13 Posts: 8409 Post Likes: +3662 Company: Aviation Tools / CCX Location: KSMQ New Jersey
Aircraft: TBM700C2
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Username Protected wrote: So it looks like into a stiff headwind intermediate cruise is best range but overall all are similar. I would add though that it looks like you used 220 gallons as useable trip fuel (70 gallons reserve) however, if you're using lrc at 36 gph you could run another 20 gallons ~35 minutes for 980nm range. I just pulled a distance out of the air to see what effect power has on an hypothetical but realistic trip.
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Post subject: Re: The definitive Piaggio P180 Avanti thread. Posted: 15 Mar 2021, 20:26 |
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Joined: 09/02/09 Posts: 8415 Post Likes: +8303 Company: OAA Location: Oklahoma City - PWA/Calistoga KSTS
Aircraft: UMF3, UBF 2, P180 II
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Not surprised. Congratulations.
_________________ Travel Air B4000, Waco UBF2,UMF3,YMF5, UPF7,YKS 6, Fairchild 24W, Cessna 120 Never enough!
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Post subject: Re: The definitive Piaggio P180 Avanti thread. Posted: 19 Mar 2021, 11:59 |
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Joined: 05/18/15 Posts: 15 Post Likes: +18 Location: Ames, Iowa
Aircraft: Citation Mustang
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Matt,
Thanks for posting your pics. Looks like you're at ICJS for your Garmin upgrade? I have #1050 at ICJS now and we are working through the pre buy. I believe you can see #1050 (black and red plane) through your windshield in the picture. When do you hope to be complete with your avionics -- I hope to be the next Piaggio in line to get Garmin at ICJC.
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Post subject: Re: The definitive Piaggio P180 Avanti thread. Posted: 19 Mar 2021, 12:02 |
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Joined: 09/26/09 Posts: 1408 Post Likes: +872 Company: ElitAire Location: Columbus, OH - KCMH
Aircraft: Piaggio P180
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Username Protected wrote: Matt,
Thanks for posting your pics. Looks like you're at ICJS for your Garmin upgrade? I have #1050 at ICJS now and we are working through the pre buy. I believe you can see #1050 (black and red plane) through your windshield in the picture. When do you hope to be complete with your avionics -- I hope to be the next Piaggio in line to get Garmin at ICJC. My birthday is 4/30. Hoping "done by then" is my present. I believe they can do more than 1 at a time...
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Post subject: Re: The definitive Piaggio P180 Avanti thread. Posted: 19 Mar 2021, 17:36 |
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Joined: 01/12/10 Posts: 396 Post Likes: +768 Location: Dallas, Texas
Aircraft: Piaggio P180, TTx
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Something is def off on my airplane Anthony. At 340 today )+6 I couldn't get more than 210 indicated 365 knots at a light weight..... weird I am going to do a new interior and put the airplane on a serious diet material wise, but that still does not explain a 20 knot difference in speed.
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