Bruce Meadows airport is at an elevation of 6,370 feet above sea level. Simple calculations that take temperature and barometric pressure into account yield a density altitude of roughly 3,000 feet higher than the field's actual elevation. The airplane was effectively taking off from a height of 9,300 feet.
Density altitude is significant for aircraft performance because thinner air means 1. less air for the engine to produce power; 2. less air for the propeller to produce thrust; and 3. less air for the wings to produce lift.
The higher your density altitude, the lower your airplane's performance. It will climb slower and accelerate slower.
Aircraft performance statistics, unless otherwise noted, are usually taken to be figures for an ideal day at sea level.
The Stinson 108-3 (very neat plane) is quoted to have a maximum rate of climb of 850 feet per minute (at sea level) and has a service ceiling of 16,500 feet. The service ceiling is defined as the density altitude at which an aircraft is unable to sustain a climb exceeding a rate of 100 feet per minute. With what we know, it seems as if the airplane reached that point well below its service ceiling.
There are lots of other factors in play here including the takeoff weight, the weight and balance configuration (center of gravity location), wind, and the airplane's mechanical state. The engine may very well have not been producing maximum power thus making the climb impossible in the given conditions.
Had I been in the pilot's seat, I'd have put the airplane right back down on the ground when I didn't get the performance I would expect to get in the conditions. Definitely at the one-minute mark in the video.
I'm no crash investigator, but I'm pretty damn confident in saying that this was poor pilot decision making. You can blame the airplane and you can blame the weather, but at the end of the day it was the pilot who continued with the flight and crashed instead of ending it when it was safe.
NTSB preliminary report, if anyone is interested.
http://dms.ntsb.gov/aviation/Acciden...2012120000.pdf