William Cobb
William L. Cobb was an American designer and engineer of roller coasters, as the founder and head of William Cobb & Associates. He is particularly noted for his work on designing and relocating several major wooden roller coasters in the 1970s and 1980s. A number of these coasters were world-record holders at the time of their opening.
On the subject of roller coaster design, Cobb has been quoted as saying, "You have to be a little bit mean. Sometimes you have to be a little bit sneaky. You get them going on a nice straight track and they think 'This looks smooth,' and then you dip it down a little to give them a good jolt. Or you have it so that when they go over a hill it looks like they're going to get their heads chopped off at the bottom."
List of roller coasters
William Cobb designed 11 roller coasters around the world.| Name | Model | Park | Country | Opened | Status | Ref |
| Great American Scream Machine | Wood support structure | Six Flags Over Georgia |  United States | 1973 | ||
| Screamin' Eagle | Wood support structure | Six Flags St. Louis | United States | 1976 | ||
| Texas Cyclone | Wood support structure | Six Flags AstroWorld | United States | 1976 | ||
| Tornado | Wood support structure | Adventureland | United States | 1978 | ||
| Rolling Thunder | Wood support structure | Six Flags Great Adventure | United States | 1979 | ||
| Judge Roy Scream | Wood support structure | Six Flags Over Texas | United States | 1980 | ||
| Cyclone Formerly Riverside Cyclone | Wood support structure | Six Flags New England | United States | 1983 | Now known as Wicked Cyclone | |
| Monstre | Wood support structure | La Ronde |  Canada | 1985 | ||
| Roller Coaster Formerly Tree Topper | Wood support structure | Upper Clements Park | Canada | 1989 | ||
| Anaconda | Wood support structure | Walygator Parc |  France | 1989 | ||
| Sierra Tonante | Wood support structure | Mirabilandia |  Italy | 1992 |