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Guest Milton

Contact Points?

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I need a bit of help in getting the mains and nose wheels to contact the ground properly...The wheels appear to be 'floating' slightly above the surface..I suspect the answer may be in adjusting the contact points, but have no idea where to start...Any help would be appreciated..Thanks..Ron

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The contact points are used to adjust the aircraft relative to CoG.Contact points 2 and 3 are typically the main gear, but this is not likely the problem. This parameter defines the length and distances of the main gear relative to CoG.Your problem as stated seems more rleated to static_cg_height (above the ground). If only the mains are high, then try adjusting static_pitch to get all wheels equadistant from the ground, then lower the aircraft slightly to sit on the tarmac.static_pitch=3.02 //degrees, pitch when at rest on the ground (+=Up, -=Dn)static_cg_height=3.765 //feet, altitude of CG when at rest on the groundSee the Aircraft Container SDK for details on contact points: http://zone.msn.com/flightsim/FS02DevDeskSDK00.asp... but many default aircraft have these comments to identify each parameter. This is from the Cessna 172.//0 Class//1 Longitudinal Position (feet)//2 Lateral Position (feet)//3 Vertical Position (feet)//4 Impact Damage Threshold (Feet Per Minute)//5 Brake Map (0=None, 1=Left, 2=Right)//6 Wheel Radius (feet)//7 Steer Angle (degrees)//8 Static Compression (feet) (0 if rigid)//9 Max/Static Compression Ratio//10 Damping Ratio (0=Undamped, 1=Critically Damped)//11 Extension Time (seconds)//12 Retraction Time (seconds)//13 Sound Type[contact_points]point.0=1, 0.70, 0.00, -4.20, 1500, 0, 0.5, 22.0, 0.25,2.5, 0.7, 0.0, 0.0, 0point.1=1, -4.70, -4.50, -4.05, 3500, 1, 0.5, 0.0, 0.3, 2.5, 0.7, 0.0, 0.0, 2point.2=1, -4.70, 4.50, -4.05, 3500, 2, 0.5, 0.0, 0.3, 2.5, 0.7, 0.0, 0.0, 3Milton

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Ron,Suggest getting the Aircraft Container SDK. Page 22 begins the discussion on contact points.http://zone.msn.com/flightsim/FS02DevDeskSDK00.aspFom me, and I am a rookie of the worst kind, it is hard to sort thru all the zeros in the contact points. So, I try to get rid of as many of them as I can and organize the numbers. Makes them easier for me to work with.I copied the way someone else had organized contact points for another plane and use this format anytime I tackle them. Take a look at the note pad doc I uploaded for you to see.http://ftp.avsim.com/dcforum/User_files/3e68ab854d03d476.txtIt took me a goodly amount of time and study for it all to start making sense. Maybe this bit of information will get you started.http://myweb.cableone.net/joesumralliii/hook5.gif

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Thanks to all...I now have couple of starting points...The problem occured when I used a different cfg file to make a 'pro' AC work with my standard version FS2K..Everything worked just fine, except the problem with the height and pitch....I believe Im on my way...Thanks again..Ron

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Ron,Don't know what I was thinking above, but the answer should be to decrease the contact points 1 & 2 parameter 3 by a few tenths to drop the aircraft to the tarmac. Try .5 which is probably too much, but then adjust appropriately.Milton

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