Page 20
KEY INPUT & DISPLAY
0
RUN 9
Feet
2
Inch
1. Enter window width (chord length) and height as “rise” and “run”:
RISE 3
Feet
11-1/2
Inch
BASE 3
Feet
0
Inch
2. Enter the height of the base:
ARC 163.26˚
3. Calclate the angle of the window’s arc:
ARC 13
Feet
2-3/8
Inch
4. Calculate the length of the arc:
CORD 9
Feet
2
Inch
5. Display entered chord length (the width of the window):
SEG 27.48605
SQ Feet
6. Calculate the area of the window segment:
PIE 30.57678
SQ Feet
7. Calculator will next display pie slice area. This is not relevant to a window.
RISE 3
Feet
11-1/2
Inch
8. Display the entered height of the middle of the window:
ARCHED SEGMENT WALLS (OUTSIDE) – WITH BASE
Example: A lobby is designed to have an arched window set behind the reception desk with
measurements of 9 Feet 2 Inches in width and and a window height of 3 Feet 11-1/2 Inches. There is
also meant to be 3 Feet of Space between the top of the window and the ceiling.
Find the arc angle, arc length and segment area of the window. Then, using the standard On-center
spacing of 16 Inches, and the space above the peak of the window as the “base height” nd the
“outside” arched segment wall lengths in order to frame the window.
AW 1 3
Feet
2-3/8
Inch
10. Calculate the arched segment wall lengths:
AW 2 3
Feet
10-1/8
Inch
AW 3 5
Feet
3-9/16
Inch
OC 16
Inch
9. Display On-center spacing:
Arc
STORED
On/C On/C
Feet Inch
Run
9
2
Rise
Feet Inch
1 23
/
11
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Arc
Rise
Feet
Conv
3
(R/Wall)
3’ 11-1/2”
9’ 2”
3’ Base
To Next Page
Loading...
Need help?
General
