A common speed limit encountered by all aeroplanes is the restriction to fly at 250 knots (288mph) or less when under an altitude of 10,000 feet, which falls into the Class B airspace level. In some cases the Class B level can extend a little higher.
Clinodactyly means that your child has an abnormally bent or curved finger. It is typically caused by abnormal growth and development of the small bones of the finger. It is estimated to affect about 10 percent of the general population to varying degrees. Clinodactyly can be an inherited condition and may present as a part of an associated syndrome. A significant percentage of people with Down syndrome, for example, have clinodactyly. The exact incidence of this condition is unknown, in part because there is no precise definition of what level of curvature is normal and abnormal. It tends to be present more commonly in boys and usually affects the small finger; it is unusual to have it on both hands. Learn more about the symptoms and causes of clinodactyly. The Hand and Orthopedic Upper Extremity Program
Trigger finger can be caused by a repeated movement or forceful use of the finger or thumb. Rheumatoid arthritis, gout, and diabetes also can cause trigger finger. So can grasping something, such as a power tool, with a firm grip for a long time. Farmers, industrial workers, and musicians often get trigger finger since they repeat finger and thumb movements a lot.