Mailing List lml@lancaironline.net Message #48645
From: <Sky2high@aol.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: Simulators, Training and "Slow flight"
Date: Sun, 31 Aug 2008 07:49:38 -0400
To: <lml@lancaironline.net>
Hmmmm...............
 
Today was interesting, a beautiful day to fly from KARR to KMXO (45 Minutes).  I chose to do this at a low altitude because of the beauty - Illinois/Iowa green planted fields, flashing streams, and a clear blue sky (no moisture laden haze). 
 
Unfortunately, I ran thru a cluster of those #&#&%^^#%$#& little black bugs that got everyone's attention a few years ago in the AVC race as they descended into the ARR checkpoint.  Canards stopped flying at slow speeds, windows became opaque and everybody lost many knots for the remainder of the race.
 
Approaching MXO from the SE I chose to practice the GPS 33 approach w/vertical guidance and a pleasant 10 knot headwind. After the FAF I was descending nicely (13" MP, takeoff flaps, 110 KIAS) when I drifted slightly below the glide slope.  Attempting to raise the nose a bit increased the descent rate, dramatically lowered the KIAS and required adding over 2" of MP just to remain level and re-intercept the glide slope.  "So what?" one might ask.  Well, either the sticky laminar flow was disturbed and changed the L/D, the bug drag was greater than I thought or both.  In any event, without adding power and trying to regain the glide slope, the airspeed was fast deteriorating.  This is an example of how a low time pilot could get into trouble - no spam can would have seen such a significant change in the flight characteristics in such a short time.  Let's see a 320/360 sim pick that up.............
 
Scott Krueger
Fly'm if ya got'm - there ain't no substitute.
In a message dated 8/29/2008 6:15:50 P.M. Central Daylight Time, tednoel@cfl.rr.com writes:
 
 MS Flight Sim and X-Plane, while fun and educational, are not up to the challenge of providing the kind of fidelity needed for type familiarity, let alone upset recovery training. 
 
 
That's curious. The designers of X-Plane are quite proud of their flight dynamics, and my local FBO uses X-Plane to drive an FAA-certified Motus motion sim.
 
 
 
That being said, if a group was serious about creating a high-fidelity simulator, I would be please to contribute to the effort with the development of a high fidelity aerodynamic model.   The variations between our individual aircraft remain a challenge, but from mostly from a systems level.  The aero models could be readily adapted model the range of variations between our aircraft.  

 

Tom Low

 

I think all of us would be grateful for your help. Perhaps we could pass the hat to reimburse for the time and effort. If others are willing, I'll put some $$ in.

 

Ted Noel

N540TF

 

 

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