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737 Classic >> 737 Classic - Tech issues >> DONE - Landing pitch too high
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Message started by GentleGroove on Apr 17th, 2021 at 12:10pm

Title: DONE - Landing pitch too high
Post by GentleGroove on Apr 17th, 2021 at 12:10pm
On final, default landing pitch is too high (around 5 degrees).

Going into the aircraft.cfg, in the [flaps.0] section, increasing the lift_scalar value from 1.0 to 1.45 seems to improve this, giving a value of 2.5 degrees (using flaps 30 and correct Vref speeds) which should be correct according to Boeing manuals.

Title: Re: Landing pitch too high
Post by Angel of Attack on Jun 15th, 2021 at 2:08pm
2.5 seems too low, that number is used for VREF+10 in unreliable airspeed condition.
According to FCTM, 3~4 is the range for a normal VREF+5 approach.
CS's 5drgree is too high and noticeable in cockpit view, and still there in v1.0, hope it could get fixed.

Title: Re: Landing pitch too high
Post by GentleGroove on Jun 16th, 2021 at 10:48am

Angel of Attack wrote on Jun 15th, 2021 at 2:08pm:
According to FCTM, 3~4 is the range for a normal VREF+5 approach.


Actually the highest value quoted in the FCTM is 3.2 for the -300 with flap 30, with 1.7 with flap 40. If you want to match these values as closely as possible, you can try lowering the scalar figure I mentioned by 0.05 at a time.

Cheers

Title: Re: Landing pitch too high
Post by Angel of Attack on Jun 17th, 2021 at 2:49pm

GentleGroove wrote on Jun 16th, 2021 at 10:48am:
you can try lowering the scalar figure I mentioned by 0.05 at a time.


Ah, I have done that with another 733(and 4,5) back to FS9 days and it took me days to complete all tweaks and test flights.

I believe that should be what I paid for CS to do now :-?

Title: Re: Landing pitch too high
Post by EY on Jul 9th, 2021 at 6:30pm
fixed, 1006

Title: Re: Landing pitch too high
Post by Angel of Attack on Jul 10th, 2021 at 11:04am
Still see 5 degree pitch on 1006
my test condition is 733 with 49 tonne, flaps30 and full automatic approach near sea lever, VREF 134 and VAPP 139

Title: Re: Landing pitch too high
Post by Angel of Attack on Jul 16th, 2021 at 1:36pm
Now in -300 1007, it's like 3~3.5, much better :D

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