Report for Scotch Cap Light station (Alaska) - 1920

District: 17th
Inspector: Various
Location: On southwest end of Unimak Island, easterly side of Unimak Pass.
Date of Report: 09/03/1920
Latitude: 54° 23' 52"
Longitude: 164° 44' 40"
Site: Public land set aside by Executive Order
Date of Reservation: 01/11/1902
Date of Deed:
Date of Permission:
Date of Lease:
Area of the Entire Site: 4588 acres
Area Inclosed: None
Character of Soil:
Distance of tower from Nearest High-Water Mark: 100 feet
Inclosures to Premises / Type of Fence: None.
Wharf or Landing on Premises: None except beach.
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station: Reached by boat about 75 miles from Unalaska (Dutch Harbor)
Distance to Nearest Road:
Distance to Post Office:
Distance to Village:
Facilities for Public Conveyance:
Facilities for Private Conveyance:
Means Used for Support of Lantern: Octagonal tower rising from center of 1 story octagonal frame building.
Number of Separate Lights: 1
First Built or Established: 1903
Last Rebuilt, Repaired, or Renovated:
Condition at This Date:
Shape of Tower in Plan:
Form of Tower:
Height from Base to Ventilator Ball:
Height of Focal Plane Above Mean High Water: 90 feet.
Background of Lighthouse as Seen from Sea: Bluff & slopes partly eroded partly covered with grass, green in summer & light color in spaing & fall; white with snow in winter.
Color of Tower: White
Color of Tower/ How Produced: Paint
Tower Connection: Detached.
Object of Navigation: For general navigation between Pacific Ocean & Bering Sea, through Unimak Pass.
Building Materials: Wood, shingled.
General Description:
Wall Thickness at Base:
Wall Thickness at Parapet:
Diameter at Base:
Diameter at Parapet:
Kind of Stairway and Steps: Circular, wooden.
Number of Landings:
Size of Glass: 10" x 18"
Number of Windows and Size of Sash: 4 - 2' 0" x 3' 6"
Number of Doors: 2 - 2' 8" x 6' 8" & 2' 2" x 6' 0"
Kind of Foundation and Depth Below Surface:
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks:
Lantern and Fixtures
Order of Lantern: 3rd order
Shape of Lantern: Cylindrical
Diameter to Glass: 8' 7.132"
Diameter in the Clear:
Number of Sides:
Type of Bars: Helical
Thickness of Bars: 7/8"
Height Glazed: 6' 1.25"
Number of Plates in Height: 2
Number of Plates Each Side:
Thickness of Plates: 1/4"
Size of Plates: 2' 1.081" x 2' 1.081"
Number of Storm Panes: None.
Unglazed Side of Lantern:
What Bearings:
Construction Material Lantern: Cast iron, brass, bronze, glass
Construction Material Roof / Cowl: Conical, Cast iron
Ventilator / Cowl: Cast iron; 21.5" diameter
Lightning Spindle: Brass with platinum points, 2' 7/8" high
Description of Lightning Rod:
Balustrade: 2' 10" high; wood.
Lantern Doors: 1 curved, hinged; iron, broze & glass
Floor of Lantern: Wood, double 7/8" x 4" T&G, Galvanized nails.
Watchroom Doors: None.
Parapet Diameter:
Location / Number: In lantern parapet.
Ladders / Cleaning Arrangement: 1 12', iron, portable.
Curtain Hooks / Hanger: Spring rollers with brass brackets.

How is Watchroom Fitted: None
How is Relief Called: Telephones
Where is Call System Led: From station to dwelling of keepers.
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles: 7300 cp
Name of Maker: Not known
Year Made: Unknown
Marks and Number: None.
Order of Apparatus: 3rd
Inside Diameter: 39.37"
Light Characteristic: Fixed white.
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part: Fixed, 288
Number of Panels: 5, one of which is a reflector.
Number of Flash Panels: None
Arc of Each:
Number of Elements in Central Drum: 13
Number of Prisms Above Center Drum: 11
Number of Prisms Below Center Drum: 4
Does Apparatus Revolve?: False
Is There a Revolving Belt?: False
Revolving Panels:
How Flash is Produced:
Number of Vertical Elements Panel:
Fixed Lens Covered:
Pedestal: Cast iron, centrally supported, 22.75" high, 18" diameter
Service Table:
Draft Tube Description: Has draft tube. No damper tube except with subistiture lamp.
Revolving Machinery:
Standby and Description:
Chariot Float or Balls:
Chariot Description:
Length of Drop Tube:
Clock Weight:
Length of Winding Time:
Drive During Rewind:
Machinery Protection:
Lens Protection: Curtain, 2 pcs. linen
How Color is Produced:
Red Sectors Description: None. Obscured from seaward between the bearings 107 and 274
Where Color Attached:
Form of Colored Glass:
Lamp Description: 3rd order Type A, 2 tank system
Type of Illuminant: Incandescant oil vapor.
Number of Spare Lamps: 1 IOV; 2 2nd order plunger, 3 wick lamps for substitute; & 2 4th order 1 wi
Number of Spare Burners:
Candle Power: 900 cp.

Vapor Oil Lamp
Number of Wicks or Mantels: 1
Diameter of Outside Wick:
Diameter of Mantel: 55mm
Diameter of Circum Circle:
Closets and Store Rooms
Tower Closet Use: 2 lockers used for storing chimneys & spare parts of lamps & linen lens curtains, towels, etc.
Oil House Description: 2, 115' & 145' from tower.
Oil House Inside Dimension: 7' 11" x 11' 4.5"
Oil House Construction Material: Wood & Corr. iron.
Oil House Capacity: 980 cans each. 2 galvanized iron kerosene oil storge tanks, mounted in engine room & 1 in barn, capacity about 235 gallons each.
Other (Describe): 2 closets in vestibule; 1 locker under sink.
Suitability: Suited.
Fog Signal General
Fog Signal Kind: Diaphone, Type "F" operated by compressed air & a 10" whistle for emergency use.
Time to Start: 10 minutes
How Long Will Pressure Last: 0 minutes
Year of Manufacture:
Characteristic: 4 sec. blast, 56 sec. silent.
Duplication: 3 engines & air compressors, 2 air tanks. Diaphone & whistle apparatus are each seperately complete.
Timing Device: Special, furnished by Diaphone Signal Co.
If whistle, siren, or trumpet, Pressure at Which Blown: 60 lbs.
Height Above Water: 75'
Compass Direction: Vertical.
Location: In same building as light.
Distance and Direction:
Water Supply: Water piped from sparing on hill, constant flow; cistern back of fog signal for circulating purposes is needed.
Reached from Lighthouse: By a trail.
Description of Fog Signal Building: 1 story, octagonal frame building heated by hot water system.
Pressure And Recording Gauge: 2 Crosby Guage Co. 1 recording guage, American Steam Guage Co.
Internal Combustion Signal
Fog Signal Kind:
Internal Combustion Kind: Hornsby-Akroyd
Internal Combustion Manufacturer: De La Vergne Refrigerating Machine Co.
Internal Combustion Date: 1901
Internal Combustion Size: 11x15"
Internal Combustion Horsepower: 13
Internal Combustion Fuel: Oil, kerosene
Internal Combustion Starter: 3rd district torch
Compressor Maker: Ingersoll-Sargent
Compressor Seat: Same bed & geared
Compressor Machinery:
Compressor Diameter: 8"
Compressor Stroke: 8"
Compressor RPMs:
Character of Air Inlet: 3"
Kind of Unloader: Heron & Burry
Diameter of Delivery Pipe: 2"

Whistle Signal
Whistle Diameter: 10"
Whistle Height: 30"
Whistle Orifice: 2 3/8"
Whistle Tone: Single
Whistle Chime:
Location: 3 dwellings, only 1 occupied.
Coloring: White with lead trimmings.
Construction Materials: Concrete basement, frame houses.
Number of Rooms: 6 each
Number of Dwellings: 3
Heating Plant: #202 Hot water heater (Perfect) 8 radiators.
Number of Keepers: Keeper & 2 assistants in 1 dwelling.
Furnished Quarters: All
NOT Furnished Quarters: None
Outhouses: 1 barn, 2 oil houses, 1 hoisting house.
Outhouse Coloring: White with lead trimming.
Paths and Walks: Concrete walk connecting tower & dwellings.
Area Inclosed:
Area of Garden:
Area Timber or Shrubbery:
Cultivation Area Available: None.
Area Cultivated: None.
Character of Surroundings: Tundra.
Stove, Maker: Great Majestic #847
Stove, Size: 6 lid
Sink, Maker:
Sink, Size: 18" x 28"
Pump, Maker:
Pump, Size:
Lamps: 1 table lamp, 2 hand lamps
How Procured: From spring about 1/2 mile distant, piped to cisterns on hill back of dwellings, then to dwellings & to fog signal
Quality: Excellent
Quantity: Ample
Injury Possible: Not liable to complete interruption but flow interferred with sometimes in winter by snow in spring.
Purity Precaution: Brick filter wall in upper cistern.
Tank Capacity: 11,600 gal total 1 cistern on top of bluff, 1 on slope back of fog signal building.
Tank Material: Concrete.
Distilling Apparatus: False
Distilling Manufacturer:
Well Description:
Well Diameter:
Well Lining:
Pump or Bucket:
What Power Used:
Distance from Dwelling:
General Opinion: Excellent
Diseases: None
Local Causes:
Recommended Improvements: No.
Access to Lighthouse: Portable tram from beach to bank. Permanent tram from bank thru the barn to the light & fog signal building.
Distance and Direction: 600 feet, 78 true.
Miscellaneous Remarks: Fairbanks-Morse hoist located in small building near the light & fig signal building, M&W hoist located in barn.
Boat #1
Boat Number: 33
Type: Whaleboat
Length: 4' 9"
Width: 18' 0"
When Built:
Date Harbored at Station: 1902
Sails: True
Suited to Work: Yes
Boat #2
Boat Number: 35
Type: Skiff
Length: 4' 0"
Width: 14' 2"
When Built:
Date Harbored at Station: 1910
Sails: False
Suited to Work: No
Boat #3
Boat Number: 39
Type: Dory
Length: 5' 4"
Width: 19' 0"
When Built: 1914
Date Harbored at Station: 1914
Sails: False
Suited to Work: Yes.

Power Boat
Engine Type: Outboard motot
Horsepower: 3.5 HP
Engine Maker: Caille Perfection Motor Co.
Spare Coil: No number
Magnet: High tension built in magneto
Battery: 3 dry batteries in box.
Propeller Diameter:
Propeller Pitch:

Hoisting Engines
Engine #1
Hoisting Engine Kind: Fairbanks-Morse
Engine RPMs: 350 rpm
Engine Diameter: 6"
Engine Stroke: 6.5"
Engine Boiler:
Engine Maker and Date: 1915
Serial Number: 153427
Cylinders and Size:
Horsepower: 9 HP
Hoist Starter:
Hoist Miscellaneous:
Engine #2
Hoisting Engine Kind: August Mietz
Engine RPMs:
Engine Diameter:
Engine Stroke:
Engine Boiler:
Engine Maker and Date:
Serial Number:
Cylinders and Size:
Hoist Starter:
Hoist Miscellaneous:

General Information:
Boats on Station: In barn.