On Wed, 13 Jul 2005 15:39:35 -0400, "Peter R."
wrote:
Yossarian wrote:
Excuse my laziness but if anyone feels like checking some distances for
me I would be greatly appreciative 
172SP, fully loaded, 73' field elevation (Bermuda Dunes, CA), 120
degrees F, paved runway, assume no wind.
I have a feeling the density altitude isn't going to make this feasible.
Assuming a relatively low dew point (a safe assumption for the desert
southwest) and using Palm Springs altimeter setting, I am only arriving at
a density altitude of around 4,200 ft MSL.
Also being "stuck at work," I do not have access to my 172SP PIM with the
take off distances. However, I recall that 4,200 feet DA is definitely
do-able for a fully loaded 172SP on a 5,000 ft runway, which is the runway
length at Bermuda Dunes.
Of course, I would not expect you to operate your aircraft based on this
information alone. 
What DA do you come up with?
Assuming we're talking about KUDD, 73' elevation, 40 deg C temp,
altimeter 29.79, I come up with pressure altitude of 190' and density
alt of 3050.