V0.6.0 first impressions



  • I tested this with the latest MSFS update downloaded 5/7/21.

    Takeoff stability greatly enhanced in both calm and crosswind conditions. If anything it is a tad too stable, but given the history here this is a welcome change. Gone is the sudden lurching right or left as the aircraft transitions from takeoff roll to flight.

    Generally speaking, performance continues to track closer to book values. I find the 75% power settings spot on at 3000 and 6000 ft. As power is reduced, I find the model tends to fly a bit faster than book.

    Glide performance is a bit more realistic. Past versions had glide ratios a bit too high. This version tends to fly more like a brick when power is cut (more like 11 or 1200 ft per minute vs 900-1000 ft/min of the older models tested).

    At gross weight, it feels much more realistic (much more of a pig!). Taking off at gross weight (vs 400 lbs lighter) in real life is a very different experience with a much higher "pucker factor". This combination of MSFS and the JF Arrow III nails the feeling that if you screw up just a little you are going into the trees at the end of the 2500 ft runway at sea level on a standard day at gross weight.

    The (undocumented, my observation) increase in airspeed as you go from 6000 ft level flight at 75% power to a 500 ft/min decent is now spot on. You should expect a 15 knot increase in TAS and this version of the model delivers almost exactly that.

    Decreasing RPM decreases TAS which is how it should be. This corrects a problem with earlier models where decreasing rpm from say 2100 rpm to 1900 rpm increased TAS.

    Hat tip to JF Arrow III dev & testers.

    -bv


  • JF Staff

    Thanks for positive feedback. We'll of course continue to improve the flight dynamics as much as possible within current SDK/sim constraints.



  • @BernieV said in V0.6.0 first impressions:

    I find the 75% power settings spot on at 3000 and 6000 ft.

    Do you lean the mixture for fuel flow? I find I have to lean it far too low to even reach the 75% setting. Dropping to 55% is pretty close to cutoff (and far lower than the usual 40% lock would allow).
    Also the fuel flow in this area is so sensitive that moving the mixture lever just a tiny bit makes the fuel flow to drop quite a lot.

    Might be a MSFS limitation but it feels unnaturally low to me.



  • @copper I lean to 100F ROP using EGT only. I understand that fuel flow doesn't behave the way you would expect. I used to lean solely by Fuel flow, but I've come around to believing that leaning using EGT it's a more reliable way to lean for best power.



  • @BernieV said in V0.6.0 first impressions:

    I lean to 100F ROP using EGT only.

    Do you get to the correct FuelFlow that way? Or is the Arrow then consuming far more fuel (at least what the FF gauge suggests)?
    What is the position (%) of the mixture lever if you're ROP and best power?

    Same issue on the Turbo Arrows as well.
    When leaning by the fuel flow gauge, the performance seems to be fine, I reach the book numbers, but the mixture lever is what bugs me - far too low and far too sensitive around the important 75%/65%/55% fuel flow area.



  • @copper

    Do you get to the correct FuelFlow that way?

    No. The relationship between fuel flow, egt, and power is not modeled correctly. The issue appears to be in the base simulator, not the JF aircraft. I've seen similar odd behavior in the Bonanza.



  • @BernieV Then I really prefer to lean using the fuel flow gauge instead of the EGT, just to get predictable range which the fuel calculations are based on.
    The EGT doesn't bother me really except for realism, but a 1.5x higher fuel consumption than expected does 🙂



  • @BernieV said in V0.6.0 first impressions:

    Takeoff stability greatly enhanced in both calm and crosswind conditions. If anything it is a tad too stable, but given the history here this is a welcome change. Gone is the sudden lurching right or left as the aircraft transitions from takeoff roll to flight.

    at takeoff it seems better, but landing is sometimes still horrible. (sorry for my english (horrible, too 😛 )



  • @lennsch said in V0.6.0 first impressions:

    landing is sometimes still horrible

    That is real life my friend!



  • @BernieV said in V0.6.0 first impressions:

    Gone is the sudden lurching right or left as the aircraft transitions from takeoff roll to flight.

    Not for me. Expecting the "lurch problem" to be fixed, I took off a long runway with a tailwind (thanks, in-game ATC), empty plane (just the pilot), no flaps, giving the aircraft the opportunity to show me when it wants to go flying, and it lurched massively to the left.

    I'm going back to rotating early to avoid this behaviour. 😕
    I kinda don't like how the model conditions me to do The Wrong Thing™.



  • @aurel Try setting 3 degrees of RIGHT rudder trim, and about 2.5 degrees of UP trim before takeoff... Then return it to 0 when you reach cruise altitude.



  • it's still there and it has a huge impact on my immersion... please fix it 😞

    See this example:

    https://youtu.be/0DUDOa1BD3I