203
RECOIL MECHANISM---15-POUNDER GUN NO. 12.
No. 10283.
Gun returned to testing machine for supplementary observations. Gun in firing position, bottom side up. Counter recoil springs in the cylinder. Observations of resistance of moving gun into recoil position and return.
Resistance	Travel of gun.	Remarks.
Pounds. 300 2,180 2,400 2,460 2,620 2,800 3,060 3,280 3,470 3.780 4,200 1,980 1 1,820 1,640 1,420 1,360 1,100 940 630 410 2,150 2,380 2,510 2,610 2,840 3,100 3.340 3.500 3.780 4,250 2,010 1,860 1,710 1.500 1.340 1,160 920 590 340	Inches. 0. .50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 4.86 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 .50 .50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 4.86 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 .50	Initial load.