GOLF BALL
A golf ball is disclosed herein that has at least one modified aerodynamic characteristic or performance trait. More specifically, the golf ball disclosed herein can include a dimple pattern having a specific drag coefficient and/or specific integrated drag area.
1 . A golf ball comprising at least a core and a cover,
the golf ball having a weight of 1.600 ounces-1.620 ounces and a diameter of 1.680 inches-1.700 inches,
the golf ball having a compression (C 0 ) of greater than 40, and the golf ball having a coefficient of restitution (COR), such that the golf ball compression (C 0 ) and golf ball coefficient of restitution (COR) have the following relationship:
COR
>
-
8
.
1
4
×
1
0
-
6
C
0
2
+
7
.
2
4
×
1
0
-
4
C
0
+
0
.
8
0
9
,
the cover comprises a plurality of dimples arranged in a dimple pattern having a drag coefficient (C D ) and a lift coefficient (C L ), such that 0.230≤C D ≤0.250 at a Reynolds number of 220,000 and a spin ratio of 0.070, 0.230≤C D ≤0.250 at a Reynolds number of 160,000 and a spin ratio of 0.095, and 0.230≤C D ≤0.250 at a Reynolds number of 120,000 and a spin ratio of 0.100;
wherein the dimple pattern has an integrated drag area (DA) defined by:
DA
=
∫
1
6
0
,
0
0
0
2
25
,
000
C
D
(
Re
)
dRe
where C D (Re) is established at a launch condition of a golf ball speed of 182.0 mph, a launch angle of 10.0 degrees, and a spin rate of 2,700 rpm, such that 14,500≤DA≤15,500;
wherein C L ≥0.115 at a Reynolds number of 240,000 and a spin ratio of 0.060, and
wherein the drag coefficient and the lift coefficient at a Reynolds number of 225,000 and a spin ratio of 0.070 have the following relationship: 1.400≤C D /C L <2.000.
2 . The golf ball according to claim 1 , wherein the golf ball compression is at least 80.
3 . The golf ball according to claim 1 , wherein the golf ball coefficient of restitution is at least 0.800.
4 . The golf ball according to claim 1 , wherein the core has a weight of at least 1.245 ounces.
5 . The golf ball according to claim 1 , wherein the core has a weight of at least 1.280 ounces.
6 . The golf ball according to claim 1 , wherein the core has a diameter of at least 1.525 inches.
7 . The golf ball according to claim 1 , wherein the core has a diameter of at least 1.545 inches.
8 . The golf ball according to claim 1 , wherein the core has a coefficient of restitution of 0.785-0.805.
9 . The golf ball according to claim 1 , wherein the golf ball is a three-layer golf ball.
10 . The golf ball according to claim 1 , wherein the golf ball is a four-layer golf ball.
11 . The golf ball according to claim 1 , wherein the dimple pattern is comprised of 220-270 dimples, with a surface coverage of 77.0%-83.0%, and a dimple volume of 0.0425 in 3 -0.0575 in 3 .
12 . The golf ball according to claim 1 , wherein the dimple pattern is comprised of 340-390 dimples, with a surface coverage of 80.0%-85.0%, and a dimple volume of 0.0380 in 3 -0.0425 in 3 .
13 . The golf ball according to claim 1 , wherein the dimple pattern is comprised of 280-420 dimples, with a surface coverage of 70.0%-81.0%, and has a maximum dimple diameter disparity that is at least 0.040.
14 . The golf ball according to claim 1 , wherein the dimple pattern is comprised of 270-320 dimples, with a surface coverage of 76.0%-85.0%, and a dimple volume of 0.0350 in 3 -0.0440 in 3 .
15 . The golf ball according to claim 1 , wherein the dimple pattern is comprised of 490-620 dimples, with a surface coverage of 79.0%-85.0%, and a dimple volume of 0.0175 in 3 -0.0375 in 3 .
16 . The golf ball according to claim 1 , wherein the dimple pattern is comprised of 390-490 dimples, with a surface coverage of 77.0%-86.0%, and a dimple volume of 0.0225 in 3 -0.0450 in 3 .
17 . The golf ball according to claim 1 , wherein 0.235≤C D ≤0.250 at a Reynolds number of 220,000 and a spin ratio of 0.070, wherein 0.235≤C D ≤0.250 at a Reynolds number of 160,000 and a spin ratio of 0.095, and wherein 0.235≤C D ≤0.250 at a Reynolds number of 120,000 and a spin ratio of 0.100.
18 . The golf ball according to claim 1 , wherein 0.240≤C D ≤0.250 at a Reynolds number of 220,000 and a spin ratio of 0.070, wherein 0.240≤C D ≤0.250 at a Reynolds number of 160,000 and a spin ratio of 0.095, and wherein 0.240≤C D ≤0.250 at a Reynolds number of 120,000 and a spin ratio of 0.100.
19 . The golf ball according to claim 1 , wherein 0.235≤C D ≤0.245 at a Reynolds number of 220,000 and a spin ratio of 0.070, wherein 0.235≤C D ≤0.245 at a Reynolds number of 160,000 and a spin ratio of 0.095, and wherein 0.235≤C D ≤0.245 at a Reynolds number of 120,000 and a spin ratio of 0.100.
20 . The golf ball according to claim 1 , wherein 14,750≤DA≤15,500.
21 . The golf ball according to claim 1 , wherein 15,000≤DA≤15,500.
22 . The golf ball according to claim 1 , wherein 14,500≤DA≤15,250.