Weight & balance cessna 150 problem

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Weight & balance cessna 150 problem

Author	Message
Jerome	Jerome posted 3/12/2013 5:20:11 PM Topic Details Share Topic
Group: Forum Members Posts: 1, Visits: 15	Hi, I am new here and still trying the trial version. I am struggling with the weight and balance calculation in skydemon hope someone can help me. I have the following w&b data for the cessna 150 Empty mass 1175 lbs - arm 32,5" --> moment 38,18 Pilot + Passenger 320 lbs - arm 39" --> moment 12,48 Fuel 9 usg = 54 lbs 54 lbs - arm 40" ---> moment 2,16 totals: 1549 lbs moment: 52,82 When I input these data in aircraft properties skydemon says 1548,9 lbs (this is correct) and moment arm is 34,10 not correct. What am I doing wrong? regards
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T67M	T67M posted 4/4/2013 11:24:55 AM Post Details Share Post
Group: Forum Members Posts: 206, Visits: 3.2K	Skydemon is trying to help you, but appears to have confused you slightly. 34.10 is the arm (in inches) not the moment (in inch-lbs). Moment divided by mass equals arm, 52820 / 1549 = 34.10. You may also be confusing commas for thousand separators with commas for decimal points. Hope that helps, T67M
	Like 122