Hi there,
I am rushing with throttle management on the Vision Jet. Even if I put in manual at 85kt the plane looks like it is accelerating while close to the touch down.
The only alert I notice since taxing is this “Stall high speed” message on the PFD
Can u tip me somehow?
Thanks
The VJ approach speed is 100knts and touchdown around 80knts. How slow do you want to go?
It accelerates. I have seen a real life flight and the pilot says that on landing the vision set speed accordong to flaps…i will give it a try
Are you using auto throttle? Maybe check you don’t have flaps bound to another command? If anything the vision jet is quite draggy and slows down drastically with the throttles pulled back even while clean.
In the sim the vision jet won’t set speed according to flaps. The real plane will but it’s a feature that is missing on the default 2024 vision jet
The stall speed high CAS message is because you turned on “wing and stab anti ice” there s a button to clear it in a menu on the G3000 but it’s inop in 2024. So if you activate “wing stab anti ice” you’ll just have to live with the message for the rest of your flight
The Cirrus Curriculum teaches the “Cirrus Stabilized Approach” where you come out of 250 knots into the Terminal Area, slow down to 140, then down to 120 with flaps 50 percent before the Approach. With about 1 dot to go before Glide Slope/Glide Path intercept, gear down and slow to 100. In the Final Approach, slow to Vref +10 to Minimums, maintain stabilized. At Decision Height, disconnect AP and complete landing by handflying and reducing power as required until wheels contact.
A couple of things to note about the above that the MS-Asobo Vision Jet makes a little more difficult:
Is it normal that even if you never turned on AT, it turns itself on while on landing approach if you go too slow? In one status screen in the plane I found, it said VREF 79kts so thats what I was trying to slow down to but the plane kept fighting me, enabling AT and accelerating. Also it kept warning me about having flaps 100% with anti ice even though I had turned anti ice off.
No, AT should not come on unless you command it.
well it is coming on automatically, seems like a pretty huge bug
The warning about the flaps is cautionary for landing with possible ice.on the plane. Landing at 50% flaps in that case.
But like I said above, if you enable wing and stab anti ice you’ll get the CAS message about stall speed high and it’ll also warn you when going full flaps. The button to clear that is inop so you just have to deal with it for the flight.
If you’re not in icing conditions just leave wing and stab off for the flight. Pitot heat and engine anti ice are all I fly with unless in icing conditions and picking up visible ice.
Make sure you don’t have any binding conflicts. It shouldn’t just turn AT on for no reason, especially if the autopilot is off. The vision jet has underapeed protection but I believe it just pitches the nose down I do t believe it activates auto throttles
I have flown the Vision Jet quite a bit in 2024. What I noticed and believe I read some confirmation somewhere on the forum, is if you get close to stall speed, the plane will accelerate on its own to prevent stall. With lots of practice, I have gotten much better at power management and now love flying around in the Vision Jet. It was very frustrating in the beginning.
this is my experience, I have not found out whether this is supposed to be happening or not. I am now wondering if AT is on all the time even if you don’t turn it on. Otherwise is it normal that my throttle seems to have very little effect on the engine during cruise? Right now I am climbing through FL270 with AT off and my thrust has gone down to 37% despite having the throttle all the way up as far as it will go before it says TO mode. Is this normal?
Yes, as you go up in altitude, the engine produces less thrust. The top of the green arc is max continuous power, that will decrease with altitude.
yeah apparently that is normal since I did eventually get to 310kts despite it being at 35% or whatever. Most aircraft dont display the engine like that, it will still show you at 90% or whatever you set the throttle to despite the decrease in thrust. Someone in the Visionjet discord also told me that there is in fact an auto AT thing that kicks in to prevent stall. On my previous flight it seemed to be kicking in way to early for some reason, but my flight just now it didn’t.
The solution is to use the autothrottle. Along with the manual speed, with this you have the freedom to control it and the plane will maintain the one you select and will adapt to the one you want, greetings.
Most aircraft (Boeing, Airbus, etc) are using N1 to set power. The speed of the blades you see when looking at the engine from the front. They don’t show percentage of power like the vision jet. If you look at the N2 reading while in cruise at 310kts it’ll problem be over 100% or close to it.
Cirrus does the same thing on their SR series of planes, you fly by a percentage of power (100% for takeoff, 75% for cruise etc.) and the computer handles the rest in setting the engine for the desired power level, other than fuel . So the vision jet is probably set up that way so their intended customers (SR pilots upgrading) have the smoothest transition to the jet because they already are familiar with a lot of the controls and displays
You can also use the speed restrictions in the flight plan to control speed at a specific way point. When I load my approach I also usually set a few speeds for way points along the approach and the AT on FMS will slow me down. (IAF: 140, FAF: 100) then it’s one less thing I have to manage, just monitor to make sure its doing what you expect
Moderator Edit:
wcc96387:
Most aircraft (Boeing, Airbus, etc) are using N1 to set power. The speed of the blades you see when looking at the engine from the front. They don’t show percentage of power like the vision jet. If you look at the N2 reading while in cruise at 310kts it’ll problem be over 100% or close to it.Cirrus does the same thing on their SR series of planes, you fly by a percentage of power (100% for takeoff, 75% for cruise etc.) and the computer handles the rest in setting the engine for the desired power level, other than fuel . So the vision jet is probably set up that way so their intended customers (SR pilots upgrading) have the smoothest transition to the jet because they already are familiar with a lot of the controls and displays
In this case the question is about vision jet, I have been at MSF since the 80s, I have flown all types of aircraft and I also have the ULM, each plane is its own simulator and it is clear that 2024 has a long way to go, but It is a matter of testing the systems until it is solved
In this case the question is about the vision jet, I have been in MSF since the 80s, I have flown all types of aircraft and I also have the ULM, each aircraft is its own simulator and it is clear that 2024 has a long way to go, but it is a matter of testing the systems of each aircraft until it is resolved, greetings and good flights
I know it’s about the vision jet. That’s why everything I said was in line with the topic and the discussion.
I didn’t want to bother you, as you said it is also possible from the FMS with the flight plan as long as you know how to use the FMS button in that case and in automatic mode
ok, just got home and tested the vision jet
Landing configuration: Flaps 100%, gear down, pulled the power back and slowed down, the AT did turn on and the under speed protection kicked in not letting me get too slow and stall.
full up trim, stick full aft, gear down and flaps full, the AT coupled with the autopilot worked to keep me flying level, not descending at just the top of the red band on the airspeed, even stick full aft if the stall warning/shaker went off the autopilot would lower the nose regardless of my stick inputs.
This seems right for the envelope protection on the vision jet(I have real world experience in the SR20 instructing in it, the protections would do the same IIRC, but not throttle as it didnt have AT) once i sped up a bit i was able to turn off the AT and land normally. It seems like you’re getting too slow on approach and the underspeed protection is kicking in.
does it say VMIN at the top of the PFD when this happens?
Starting in KSEZ Sedona. altitude about 4700 MSL. Max available power is only 84% but N1 and N2 are both in the high 90’s as expected
