Lookout Types and Historic Plans

Steel Towers

USFS Specifications and Plans

USFS Specifications and Plans (1924)	USFS Standard L.O. Plans 1938 (Section I)
USFS 7′ x 7′ Tower with Inside Stairs (1932)	USFS Standard L.O. Plans 1938 (Sec. II)
USFS L-1401 (1937 Int Der, Aer MC-99)	USFS Standard L.O. Plans 1938 (Sec. III-IV-V)
USFS CL-100 Plan (1951)	USFS Standard L.O. Plans 1938 (Sec. VI)

Aermotor

Aermotor Tower Booklet	Aermotor LL-25
Aermotor LS-40 (1917)	Aermotor MC-39 (1934)
Aermotor LS-40 (1962)

International Derrick

International Derrick E-4898 (1933)

Wooden Towers and Cabs

Common Lookout Houses

Lookout Cab Styles	L-4 (1928)	R-6 Flat (1959)
D-6 Cupola	L-4 (1930)	R-6 Flat (1964)
D-5 (4-AR)	L-4 (1932)	R-6 Flat (1971)
	L-4 (1936)

Region 1 (Northern Rockies) Plans

L-2 Frame Lookout House	T-10 Lookout Tower	T-50 Lookout Tower
L-5 Log Lookout	T-20 Lookout Tower	T-1 Tower with Cupalo
L-6 Patrol House (Cupalo)	T-30 Lookout Tower	T-2 Tower with Cupalo
L-20 Lookout Cab	T-40 Lookout Tower	T-3 Patrol Tower
		Hoisting Tower

Region 4 (Intermountain) Plans

Plan 4-A (Region 5 4-A)	Plan 80-B (R-6 Flat)	SITPA Log Lookout
Plan 80 (R-1 L-4)	Plan 81-A (10′ x 10′)
Plan 80-A (R-6 Flat)	Plan 86 (2-Story)

Region 6 (Pacific Northwest) Plans

R-6 Standard Towers 1940	CT-3 Lookout Tower	CT-6 Lookout Tower
CT-1 Lookout Tower	CT-4 Lookout Tower	TT-1 Lookout Tower
CT-2 Lookout Tower	CT-5 Lookout Tower	More Region 6 Plans

Lightning Protection

Evaluating Lightning Protection	Kuefler Lightning Protection
USFS Lightning Protection Handbook 1964 (obsolete – may not meet current codes)

Firefinders

Firefinder Stand	History of the Osborne Firefinder
Osborne Diagram	Using the Osborne Firefinder
Osborne Replacement Parts	Bosworth Firefinder