First of all Happy New Year to everybody. I hope you all had a good start into 2020.
I know this is a simulator and it should be flyable for even the most unexperienced user. However, it was often said that the developers put quite some effort into the flight models, that is why they do not bring a model of an aircraft which is still doing its certification flights or where the test flight data are not available. That said, there is something that I would like to ask the developers to have a look over it. When IF is developing the flight models it is often mentioned that the aircraft is being test flown by some of the staff or users. I am not aware of on how you test the flight characteristics but obviously there are a few points where I personally (I just can talk for myself) would like to ask IF for a more accurate simulation. I am not sure if this is a feature request or a general question. The flight model needs more accuracy when it comes to this point:
The take off without flaps/ slats extended or with a wrong flap setting.
I would like to show you just one example, I took the A350 as it is the newest addition to IF.
Airport Elevation: 2,465’ above MSL
Temperature: 30 deg C
Dew Point: 20 deg C
Alt. Setting: 1,013 hPa
Density Altitude: 5045’
Absolute pressure: 926.16 hPa
Relative Density: 86.05%
Flap setting: 0
Aircraft weight: 279,753 kgs (47 kgs below MTOW)
As you can see in the pictures below, N1 was set to 93%, Vlof (did not use Vmu) was then 145-147 kts, a positive climb rate of 1865 ft/min while accelerating to around 165 kts could be achieved. Normally we would have been crashed already. But as we are still flying I tried out the worst and banked the aircraft right by 20 degrees and selected gear up. This config change in addition to the bank angle would have caused the right wing to stall immediately. This would have led to a total loss of control.
I think even the most unexperienced user knows that especially heavy aircraft like an fully loaded A350 can not take off without at least the leading edge devices extended. I think here the accuracy of the flight model for this critical phase of every flight needs to be refined.
Everyone who wants to become a pilot should learn from the beginning that taking off with a wrong take off configuration in most cases will have fatal consequences.
And just a note: I was able to take off with every model without selecting flaps.