3-¾" scale 7-½" gauge 2-4-2
(modeled after a 2’ gauge Baldwin)
A modified Don Young "Maxi-7" design, the prints were
purchased in February of 1982, castings purchased April 1982, construction
started in 1982 and finished in the fall of 1999.
Boiler
-
Code steel boiler
made by western metal products- Agoura, CA
-
14" OD diameter
barrel
-
12" x 14" firebox
-
33 ¾" pipe
flues
-
100 psi working
pressure
-
2 Kunkle safety
valves
-
2 Superscale Nathan
simplex injectors
-
Dome throttle
-
Coal fired on
stainless steel grates
Terlyn boiler
treatment was always used. Steamed an average of one time per year.
Engine
-
26" wide x 42" tall
x 106 long
-
4.0 inch dia
cylinders x 5 inch stroke
-
Walscherts valve
gear-polished steel with case hardened pins
-
D slide valves
-
Lubrication by
mechanical lubricator-two pumps-steam heated
-
Cab operated
cylinder drains and blow downs
-
1" steel frames are
flame cut annealed and blanchard ground
-
Weight 1800# plus??
-
10 15/16 driver
diameter
-
Plain bearings on
main, lead, and trailing truck axles-lubrication by oil
-
Only aluminum on
engine are the driver brake shoes
-
Cab is all steel
with 607 steel rivets-window frames are brass with glass
-
Engine has steam
brakes. Tender has straight air brakes supplied by a Westinghouse type air
pump with 2 3/8 bore x 2 3/8 stroke-hydrostatic lubrication-2 air tanks (3"
scale Winton pump-now sold by Mamouth Loco Works)
-
Headlight and cab
lights are 12 volt battery powered. Batteries in engineers seat box
-
Sand dome has
mechanism for gravity operation-never tried
-
2 whistles-one small
and large one under cab
Tender
-
61 gallons of water
(500# of h20)
-
All fabricated or
hogged out of plate steel construction
-
Frame is from
Baldwin prints with all components hot riveted together
-
Only castings on
tender- wheels, coupler, and brake shoes
-
Tank is sheet steel
witn 2690 steel rivets
-
Trucks run on needle
bearings
-
Couplers are 3"
scale Winton products-now sold by Mamouth loco works
Building two engines currently and need the shop room!
The book: two-foot cyclopedia volume #2 sr&rl #23 by william
h. Jensen Jr. was the source for the Baldwin prints used in construction of
the tender and many engine details
Locomotive cyclopedias were used for many components: blow
down valves, cylinder drains, drifting valves, dome throttle, air pump
governor, lubricator, and other items
