Very impressive. What is the fuel burn in climb? Also for a local flight say only going up to 6500msl. What would the TAS be there?

Impressive! With 120/140 gallons of fuel, you can really travel a distance and in style.

John

Very impressive. What is the fuel burn in climb? Also for a local flight say only going up to 6500msl. What would the TAS be there?

The Malibu/Mirage and M350 are definitely 200+ knot aircraft in the flight levels. What the previous posters are showing on the Mirage are LOP settings which are not approved on the M350, but sure do save a lot of fuel, and probably are easier on the engine. I flew mine mostly LOP and would see 200+ KTAS at FL200. Running it ROP it would easily do the book 213 KTAS at high cruise settings. Here is LOP. Pretty darn efficient to get 202 KTAS on 16.1 gph in a 6 seat cabin class aircraft weighing 4358 lb.

edit: I was carrying some ice on the wings when I took those pictures, others would have been a few knots faster.

What kind of ROC do you guys see with a full load? My baron has 600 horsepower to work with and only weighs 700 pounds more at gross. Is ROC pretty lethargic, but then it shines in cruise at altitude?

My M350 climbed on the hot days around 500-650 FPM

Charles thanks for that picture,in the south we are usually 10-16 ISA and that makes a big difference in CHT and speed.

Depends on your climb speed and power settings. If I am clearing terrain or climbing in ice, I fly an M350 at max power and you are around 1000 fpm. If there are no obstacles and no ice, with a cruise climb setting typically going to see around 700 fpm into the flight levels.

Here is the POH with a normal cruise climb.

These charts make my head spin, but at ISA from sea level to FL250, looks to me like 33 minutes, using 22 gallons, covering 92 nm. The climb isn't bad. In the upper part of the climb, you are crossing the ground faster while climbing, than most unpressurized turbocharged aircraft in cruise. The average climb is 758 fpm in the climb, faster down lower of course.

This is at max gross takeoff weight. If you don't need all the fuel leaving it behind improves performance. with a 1300 nm range, 900 at max cruise, you rarely need to top the tanks.

Thank you. That’s really pretty good considering the power to weight ratio. That long wing must really help compared to the bonanzas and barons.

I think there is a big bias toward cooling airspeed vs ROC.

The ROC would probably be sweet with 350hp at 90 knots but most probably climb more like 120 and get down the road with gentle CHT/%#$@

T

I think there is a big bias toward cooling airspeed vs ROC.

The ROC would probably be sweet with 350hp at 90 knots but most probably climb more like 120 and get down the road with gentle CHT/%#$@

T

+1 !

You would think that someone could just code these charts into a simple app, just plug in your variables and Voila , out comes your results !

+1 !

You would think that someone could just code these charts into a simple app, just plug in your variables and Voila , out comes your results !

Living the dream!

Amazing!

At FL220 at 30.5” and 15.5 ~ 16 gph I see about 153 IAS. My plane has a TSIO550C , which was originally designed as an upgrade STC for the PA46 with the 520.

Mine isn’t pressurized though. Full mask at that altitude for me.

Larry
Are you ROP or LOP?