Compound Steam Engine

Compound Steam Engine (HM1AUC)

Location: Stonington, CT 06355 New London County
Buy Connecticut State flags at Flagstore.com!
Country: United States of America
Buy United States of America flags at Flagstore.com!

N 41° 21.571', W 71° 57.889'

  • 0 likes
  • 0 check ins
  • 0 favorites
  • 455 views
Inscription
Compound Steam Engine
From Tugboat Socony 5
Horsepower: 850
Cylinders: 2
Bore: 19", 40"
Stroke: 28"
Weight: 40,000 pounds
Length: 8' 9" ? Width: 6' 10" ? Height: 14'
This large steam engine was built in 1927 by the Staten Island Shipbuiding Company in Staten Island, NY. It turned a 10-foot-diameter propeller on the steel tugboat Socony 5, part of a New York Harbor tugboat fleet owned by Standard Oil Company of New York.
Developed about 1870, the two-cylinder engine was a practical power plant for small to medium-sized vessels for almost 80 years until superseded by diesel engines. This example worked with a steam pressure of 160 pounds per square inch. Steam from the boiler first entered the small high-pressure cylinder, driving its piston, and was then exhausted into the large low-pressure cylinder to expand further.
The engine's horsepower of 850 may seem modest by today's standards, but this figure is based on a working load output, unlike horsepower calculations for modern internal-combustion engines. This engine has 10 times the horsepower of the Paine compound engine of the Museum's passenger steamboat Sabino.
ID# 1993.153
Details
HM NumberHM1AUC
Tags
Marker ConditionNo reports yet
Date Added Monday, September 8th, 2014 at 11:51pm PDT -07:00
Pictures
Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.
Locationbig map
UTM (WGS84 Datum)19T E 251999 N 4582909
Decimal Degrees41.35951667, -71.96481667
Degrees and Decimal MinutesN 41° 21.571', W 71° 57.889'
Degrees, Minutes and Seconds41° 21' 34.26" N, 71° 57' 53.34" W
Driving DirectionsGoogle Maps
Area Code(s)860
Closest Postal AddressAt or near 41 Greenmanville Ave, Stonington CT 06355, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

Is this marker missing? Are the coordinates wrong? Do you have additional information that you would like to share with us? If so, check in.

Check Ins  check in   |    all

Have you seen this marker? If so, check in and tell us about it.

Comments 0 comments

Maintenance Issues
  1. Is this marker part of a series?
  2. What historical period does the marker represent?
  3. What historical place does the marker represent?
  4. What type of marker is it?
  5. What class is the marker?
  6. What style is the marker?
  7. Does the marker have a number?
  8. What year was the marker erected?
  9. Who or what organization placed the marker?
  10. This marker needs at least one picture.
  11. Can this marker be seen from the road?
  12. Is the marker in the median?