today at Cadwalader Park. Parrott rifles by size (*) This time is an educated guess, the time is unknown. Flight times appear to be extremely inaccurate. Example: 10-in (300-lb) projectile would have to average only 133 ft per second to be in flight for 202 seconds to cover 9,000yds. A more accurate estimate will be in the range of 30 seconds. See also Field artillery in the American Civil War Siege artillery in the American Civil War Civil War Defenses of Washington Rodman gun Seacoast defense in the United States Contemporary rifled artillery James rifle Sawyer rifle Brooke rifle Wiard rifle References Further reading United States War Department. Atlas to Accompany the Official Records of the Union and Confederate Armies. Washington, D.C.: Government Printing Office, 1880–1901. Thomas, Dean, Cannons: An Introduction to Civil War Artillery, Thomas Publications, Gettysburg, 1985 James Hazlett, Edwin Olmstead, & M. Hume Parks, Field Artillery Weapons of the Civil War, University of Delaware Press, Newark, 1983 Johnson, Curt, and Richard C. Anderson, Artillery Hell: Employment of Artillery at Antietam, College Station, TX: Texas A&M University Press, 1995 Coggins, Jack, Arms and Equipment of the Civil War. Wilmington N.C.: Broadfoot Publishing Company, 1989. (Originally published 1962). External links 10 pdr. Parrott Rifle at the Civil War Artillery Compendium Full Profile of the 10 pdr. Parrott Rifle Full Profile of the 20 pdr. Parrott Rifle Profile and Photos of The Swamp Angel The Civil War Artillery Page Civil War Artillery Projectiles Field artillery American Civil War artillery Naval guns of the United States Coastal artillery Hanover, Pennsylvania Large-calibre artillery