9-9-17 Prelim Leg forces comparison.xlsx

	B	C	D	E	F	G	H	I	J	K	L	M	N
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2	Summary- Leg Lengths and Forces; B vs C and This Year vs Last Year
3								Force at
4		triangles used for calculation			H/L	D/H	1/COS	15kg load	Angle		Force vs last year
5		height (H)	base	hypotenuse	COS	TAN		(1/COSx3.75)	(fm vertical)		circle bonus	Not CB
6	BASE SECTION LEGS											(estimated); we did circle bonus last yr
7		H	D	L				(in kg)					haven't calculated dimensions for non-cir bonus
8	B	24.8	10.8	27.05	0.9168	0.4355	1.0907	4.090	23.53	degrees	106.4%	107%	using ~10 degrees
9	C	18.8	10.8	21.68	0.8779	0.5455	1.1391	4.272	28.61	degrees	113.4%	114%	using ~8 degrees
10		C leg forces are		105.7%	of B leg forces						base sect vs full leg last yr
11	CHIMNEY SECTION LEGS
12	B	25.4	0.4	25.403	0.99988	0.0157	1.0001	3.7505	0.93	degrees	97.6%	98%
13	C	40.4	0.4	40.402	0.99995	0.0099	1.0000	3.7502	0.40	degrees	98.3%	99%
14		B and C leg forces are essentially equal									chimney sect vs full leg last yr
15										9/24 note - corrected C-Div base angle/values; 29.88 degrees was incorrect
16	BASIS- "H", "D", and "L" are preliminary dimensions/measurements of right triangles, based on dimensional rules, as follows:
17		Base section triangle is dropping a vertical line from top of base section leg to base, with "D" the distance fm that line out to leg bottom
18		Chimney section triangle is dropping a vertical from top of chimney section leg to plane where base and chimney meet; "D" is distance out to leg section bottom
19		Dimensions provide for 1 or 2mm clearances from rule specifications as follows:
20				Tower height = 50/60cm +2mm; inside of opposite legs at base set at 29cm apart + 2mm each side; at 8cm circle level, outside of opposite legs
21					are 7.8cm apart; at top of chimney, outside of legs fit under 5cm square load block
22				Top of base section is set at 2mm below rules max height (i.e., 24.8 and 18.8cm above base plane); chimney section height includes +4mm from 25cm(B) and 40cm(C)-
23					+2mm for lowered base section height, and +2mm (above 50cm/60cm minimum tower height)
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