In 2004, the USGA moved to a different test, called the CT test. The CT test also measures the spring-like effect of a club face, except it uses a small, portable pendulum system that strikes the face with a steel ball. Sensors then read the amount of time the two objects stay in contact with each other.
How do you test irons?
Serum iron test, which measures the amount of iron in the blood. Transferrin test, which measures transferrin, a protein that moves iron throughout the body. Total iron-binding capacity (TIBC), which measures how well iron attaches to transferrin and other proteins in the blood.
What is the CT test for golf clubs?
“Characteristic time” (CT) is what golf’s governing bodies — the USGA and R&A — measure to determine whether drivers conform to the limits within the Rules of Golf on “spring-like effect.” Most simply put, characteristic time is the amount of time, measured in microseconds, there is contact between the clubface of a …
What does CT mean in golf drivers?
In 2004, the USGA adopted the concept of Characteristic Time (CT) and the portable pendulum device used to test for springlike effect. The USGA set up its CT test with a limit of 239 microseconds and a tolerance of 18 microseconds (meaning 257 microseconds is the most allowed).
Can you tryout golf clubs?
The U-try program allows you to try new golf clubs before you buy.
How can I get a free golf driver?
- Search your local Buy Nothing group. …
- Become a golf club tester. …
- Use a credit card that offers rewards. …
- Utilize a golf club donation program. …
- Be weary of offers that sound too good to be true.
How can I check my iron levels at home?
The LetsGetChecked Iron Test is a simple finger prick test which can help determine if you’re at risk of iron deficiency anemia or iron overload by identifying your iron blood levels from the comfort of your own home. Once you’ve taken the test, your online results will be available within 5 days.
Can you try golf clubs before you buy?
The upfront price golfers pay if they want to try before they buy is $25. The only exception is if you want to try a full iron iron, in which case it requires a $50 trial fee.
What is iron profile test?
Iron Profile is a panel of blood tests that check the level of iron in the blood. Iron Profile shows how much of the iron is stored in the tissues. Iron Profile includes Serum Iron (Fe), Total Iron Binding Capacity and % Transferrin Saturation.
What does Cor mean in golf?
What is COR in golf clubs? COR stands for Coefficient of Restitution. This is defined as the ratio of the final velocity to the initial velocity between two objects after their collision. Basically COR is a measurement of the energy loss or retention when two objects collide.
What is COR testing?
Prior to 2004, the R&A and the USGA tested drivers using a COR test, which tests for the spring-like effect of a club head. To measure COR of a golf club, tests were conducted by firing a golf ball from an air cannon at a club head and measuring the velocity at which the ball bounced off of different areas on the face.
What is the CT limit on a driver?
Per the USGA and R&A rules, drivers cannot exceed a CT (characteristic time) reading of 257 – the limit is 239, but there’s a tolerance of 18 — or they are deemed illegal.
What is high COR?
Usually a higher COR means more distance which explains why there are limits on it. Back in the 90s and 2000’s there were no limits and with the introduction of ultra-thin, springy faces on drivers in particular, the distance players could hit the ball could only go up and arguably get out of hand.
What driver has the highest COR?
I have two questions related to COR (Coefficient of Restitution). The USGA ruled that a . 83 COR was the maximum they would allow in a driver face for legal tournament play.
What is characteristic time in golf?
Characteristic time, or CT for short, is a measure of long the golf ball stays on the club face at impact. It is a measure that tells us the elasticity of the materials in the club face (and golf ball for that matter). The longer the characteristic time, the more spring-like the face is.