Victor C6000 User Manual

Page 37
PLMB 30.26˚
LEVL 59.74˚
JACK RAFTERS - USING OTHER THAN 16-INCH ON-CENTER SPACING
Example: A roof has a 9/12 Pitch and a run of 8 Feet 11 Inches. Find the incremental jack adjustment,
jack rafter lengths and cut angles at 18 Inch (versus 16 Inch) On-center spacing.
Note: The On-center spacing is used for both regular and irregular jack calculations.
KEY INPUT & DISPLAY
0
PTCH 9
Inch
1. Enter Pitch, Run and spacing:
RUN 8
Feet
11
Inch
OC 18
Inch
JKOC 18
Inch
2. Find regular incremental Jack adjustment and regular Jack rafter lengths and cut angles:
INCR 1
Feet
10-1/2
Inch
JK1 9
Feet
3-1/4
Inch
JK2 7
Feet
4-3/4
Inch
JK3 5
Feet
6-1/4
Inch
JK4 3
Feet
7-3/4
Inch
JK5 1
Feet
9-1/4
Inch
PLMB 36.87˚
LEVL 53.13˚
CHK1 45.00˚
OC 16
Inch
3. Reset On-center spacing to default 16-Inch:
CHK1 45.00˚
STORED
STORED
STORED
JK6 0
Feet
0
Inch
Jack
JK8 0
Feet
0
Inch
Jack
JK3 7
Feet
5-1/8
Inch
JK4 5
Feet
10-5/8
Inch
JK5 4
Feet
4-1/8
Inch
JK6 2
Feet
9-9/16
Inch
JK7 1
Feet
3-1/16
Inch
JK2 8
Feet
11-11/16
Inch
JK1 10
Feet
6-3/16
Inch
Jack
Jack
Jack
On/C On/C
(o.c.)
Pitch
Run
Feet
Inch
Stor
8
9
5
1 1
Inch
81
Inch
Jack
Jack
Jack
Jack
Jack
Jack
Jack
Jack
Jack
Jack
(o.c.)
Inch
Stor
5
6
1
Jack
Jack
Jack
Jack
Jack
Jack
Jack

Victor C6000 Specifications

General

Brand	Victor
Model	C6000
Category	Calculator
Language	English