RECOIL MECHANISM-----15-POUNDER GUN NO. 12,
No. 10282.
202
Observations for elongation of piston rod in special straining fixture. Piston removed from the recoil cylinder and tested alone in special fixture.
On gauged length B, over ends of piston rod.
Applied loads.	Gauge readings.	
	Direct movement.	Set.
Pounds.	Inch.	Inch.
1,000	0.	
5,000	.0016	
10,000	.0037	
15,000	. 0058	
20,000	.0079	
25,000	.0099	
30,000	. 0119	
35,000	.0140	
40,000	.0160	
42,800	.0172	
30,000	.0121	
20,000	.0080	
10,000	.0039	
1,000		.0001
10,000	.0039	
20,000	.0080	
30,000	.0121	
35,000	.0140	
40,000	.0161	
42,800	.0172	
40,000	.0161	
35,000	.0141	
30,000	.0121	
20,000	.0080	
10,000	.0040	.0001
30,000	.0121	
40,000	.0161	
45,000	.0183	
50,000	.0203	
55,000	.0224	
60,000	.0245	
1,000		.0001
60,000	.0245	
1,000		.0001