Page 9 of Chapter I of the POH (Dec 1994) claims a 320/360 wing loading of 22.17 lbs per sq ft at max takeoff weight (MTOW).  Page 10 of Chapter II states the 320/360 MTOW is 1685 lbs.  1685/22.17 = 76 sq ft wing area.  For those that increased their MTOW to 1800 lbs, the wing loading would be calculated as 1800/76 = 23.7 along with a reduction in the load factor limit to (1685 x 4.5)/1800 = +4.2 G’s instead of +4.5 G's..

Blue Skies,

Grayhawk

Literature?  Insight? Wikileaks?

I have seen the 19lb/sq ft number quoted in at least 2 places but as grayhawk points out the math does not work out.  I have also seen the wing area quoted as 78sq ft.   In addition, on a long trip with my wife I am always 1800# where I certified the aircraft. That puts me in the region of 26lb/sq ft.  Anybody have the "real" wing area and insight to why 19lb/sq ft turns up in the literature?

Thanks

Tom

Sent from my iPad

On May 28, 2013, at 1:53 PM, Sky2high@aol.com wrote:

320/370 wing area = 70 sq. ft.  Avg operating weight of 360 = 1600 lbs.  Wing loading = 22.857142857142

 

Grayhawk

 

PS Quad Cities Challenger II = 5 lbs/sq ft. - exciting in turbulence.

 

In a message dated 5/28/2013 12:38:45 P.M. Central Daylight Time, cwfmd@yahoo.com writes:

Airframe            Wing Loading    Cessna 150/172     10.5   traffic pattern hazard! Pitts S2                  13 RV8                       15.5 Lancair 360            19 Lancair IV-P           36.2    ! Internet poll- not scientific or stat signif