The Attached Photographs Show Various Enlargements of a Coal Transfer/Storage Facility

Exercises: ______

The attached photographs show various enlargements of a coal transfer/storage facility.

Photo 1.  What are the modes of transport visible in this image?

 What season of the year is it? The date stamp helps, any other characteristics on the photograph help confirm this?

 Speculate on the purpose of this facility.

Assume the scale as printed on the photograph is correct.  What is the distance from track to track across the coal yard? ______

 What is the length of the transport ‘leg’ that carries coal from the river to the tower inside the track? ______

 This photograph was taken using a camera lens with a CFL of 150 mm, the average elevation of the terrain is 1750 feet. What was the flying height of the aircraft? ______

 The pilot’s flight plan listed his optimal flying height for the mission in feet MSL, what was the altimeter reading when he set up for this photo run? ______

Photo 2: An enlargement of photo 1.

 What is the scale of this enlargement? ______

 What are the areas covered by the three ponds at the bottom of the photo? Provide the answers in both square feet and acres. ______Photo 3: A further enlargement…

 What is the scale of this enlargement? ______ Assume the image was acquired at solar noon, what is the general compass direction of the photograph (put a compass rose in your answer).

 What is the height of the transfer tower near the right center of the photo? ______

 What is the Area of both Coal Piles . ______. ______

 What is the Approximate volume contained in the lower coal pile? . ______

You will need the following data:

Equipment characteristics of CWEX 8076: AAR car type J311 (gondola car), plate type B, tare weight 42,600 pounds, total gross weight allowed 286,000 pounds, load limit 243,400 pounds, dry capacity 4,505 cubic feet, external dimensions (length 53' 1", width 10' 8", height 12' 10"), internal dimensions (length 47' 9", width 9' 10", height 11' 5"). [courtesy of BNSF Equiptment Characteristics]

Volume formula

Cube side3 Rectangular Prism side1 * side2 * side3 Sphere (4/3) * pi * radius3 Ellipsoid (4/3) * pi * radius1 * radius2 * radius3 Cylinder pi * radius2 * height Cone (1/3) * pi * radius2 * height Pyramid (1/3) * (base area) * height Torus (1/4) * pi2 * (r1 + r2) * (r1 - r2)