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An Attitude Adjustment?

Featured Replies

I have a question for those of you who have flown this bird in FS2000 and FS2002. Also, anyone using Lee's POSKY merge, feel free to ring in on this.Is it just a phony perception here, or do the flaps in PIC/FS2002 seem to generate excessive lift? I'm using a POSKY v3 aircraft with the FS2002 PIC flight dynamics and have been somewhat perplexed by this. I am finding that when I extend flaps, there is a definitive "ballooning" action that occurs, not entirely unlike that of a small 172. Somehow, I remember this change in lift dynamics being much more subtle in earlier versions. This theory seems to bear itself out even more as I find myself riding the glideslope with a 5 (as much as 10 at times with a light aircraft) degree nose down pitch. I am loathe to use Flaps 30 at all when landing, lest ground effect carry me 5000' down the runway. The bird does not want to settle down to the asphalt until she slows to about 110 (my speed over the numbers is usually no more than VRef+5 - generally around 135-140 KIAS depending on weight) knots. This doesn't seem right to me. To boot, I find that unless I apply an excessive amount of nose down trim, she wants to leap off the runway on the rollout - even at Flaps 5 and MTOW (which, to my knowledge, should actually require Flaps 15).I am having to hold off extending flaps until I am well below their Vfe speeds (~40-50 knots slower usually...i.e. Flaps 15 no higher than 160 KIAS) to avoid having to maintain a ridiculous nose down attitude on final.In the interim, I have tweaked the flap effectiveness down to ~0.6 and that seems to have made a significant improvement in the perceived lifting action of the flaps in addition the attitude of the aircraft (she rides the G/S pretty level now and no longer wants to leap off the runway on departure). But that still leaves me wondering - is the flaps action on the real bird this strong, or am I just experiencing a side effect of an FS2000 airfile running in FS2002? Or maybe its something with the POSKY merge itself? And, although it pains me to say it *grimace*: maybe its me :)Thoughts, feedback, comments welcome. Thanks.J

Jase,What you are experiencing seems to be an anomaly. I've flown both FS2000 and FS2002 and the Posky merge without having the problem you describe. Usually upon g/s capture I try to be around 150 to 160 kts flaps 20, gear down. I then slow down to Vref +5 and follow the g/s in with around a 2 to 3 pitch up.Something is definitely wrong with your set-up but I don't have a clue as to what. I would guess, somewhere in your air file something has changed. Have you always had this problem?Maybe someone with a more in depth knowledge of systems and air files can chime in here.

Your procedure is very very close to mine. As it is, however, I can't even think about Flaps 20 until I'm below 150 knots...145 maybe. If I have 30 or 40 thousand pounds of fuel in the tanks, she seems to fly fairly nose level down the g/s, but I usually try to target somewhere between 10 and 20K on board. I remember her flying 2-3 degrees nose up - which is why this alarmed me. The lighter configuration almost always results in a substantial nose-down attitude.Maybe I can convince Lee to send me his latest aircraft.cfg (Lee??) file and I can compare to see where his and mine differ.Thanks for your thoughts on this.J

Try http://www.sls.lcs.mit.edu/ilh/fs/767pic/Aircraft.cfg or the merge itself http://www.sls.lcs.mit.edu/ilh/fs/PIC-POSKY-v3-763.zipI don't have this problem. I drop flaps as soon as I can and usually land just fine with flaps 30.You could always use the straight Wilco aircraft.cfg as well (with any visual model) and you should have straight PIC flight dynamics. Any chance you played with the air file at all?Lee Hetherington (KBED)

Jase,My experience has been the same as Lamont's (ie not problems) so I definitely believe the problem is unique to your setup for some reason and not inherent in the PIC/POSKY merge. This doesn't help you solve it but at least you know it should be solvable. Good luck.Kevin in CYOW

Ah, bloody he*l - it was my LE slats. I had non-zero scalars for lift, pitch, and drag.Thanks, Lee!J

That will do it!Lee Hetherington (KBED)

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