Timber

Question 1

what are some considerations when cutting timber

Answer 1

wind & lean are the most critical factors for determining direction of fall

whenever possible attack least dimension

make a test shot if unsure

Question 2

what is the formula for internal charges

Answer 2

P=D(squared)/250

Question 3

for internal charges how many holes are used

Answer 3

tress up to 18” = 1 hole

larger than 18” = 2 hole

Question 4

what is the diameter of holes drilled into timber

Answer 4

2” diameter, 2/3 deep in timber

Question 5

what is the formula for external charges

Answer 5

P=D(squared)/40

Question 6

how big should charges be on external charges

Answer 6

1-2” thick and at least twice as wide as thick

Question 7

what should you do to the tree for maximum charge to target contact

Answer 7

remove the bark or notch out area for demo

Question 8

what can be done to influence the direction of fall

Answer 8

add a 1 pound kicker charge , optimally 2/3 up tree

Question 9

how thick should the charges be for ring charges

Answer 9

at least 1/2” thick for trees up to 15”

1” thick up to 30” tree

add 15 - 25% when constructing the charge

Question 10

what formula do you use for ring charge

Answer 10

use the external charge formula

Question 11

what is the formula for abatis

Answer 11

P=D(squared)/50

Question 12

where are charges placed for an abatis

Answer 12

5’ above ground level

Question 13

what are some special considerations for an abatis

Answer 13

ensure obstacle is at least 75 meters in depth

diameter of trees should be at least 2’

fall trees 45 degrees towards enemy

fall one side of road then the other