Hi Paul,
Here are the mods I have made to the contact_points that seem to keep the wheels on the deck.
..............
point.0= 1.000, -38.700, 0.000, -6.600, 1400.000, 0.000, 1.339, 42.700, 0.400, 2.500, 0.700, 0.000, 0.000, 0.000, 0.000, 0.000
point.1= 1.000, 2.620, -11.920, -11.600, 2000.000, 1.000, 2.651, 0.000, 0.321, 2.500, 0.850, 7.500, 8.500, 2.000, 0.000, 0.000
point.2= 1.000, 2.620, 11.920, -11.600, 2000.000, 2.000, 2.651, 0.000, 0.321, 2.500, 0.850, 7.000, 8.000, 3.000, 0.000, 0.000
...........
static_cg_height= 11.000
static_pitch= 6.890
Have left the tires a little compressed, but that can be fixed by altering the 'vertical position, if you wish.
Dont know if the numbers reflect the real-world a/c, but they work

Cheers,
Dave
At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation.