In 1971 VR-30 joined the Jet Age with two North American CT-39 Saberliners for high-speed executive airlift. In May 1973 the squadron received the first of four C-9B Skytrain II's to further improve its logistics support capability.
Vertical ridges can also be caused by nail injury and certain diseases, including rheumatoid arthritis, according to Rich. If, instead of a series of ridges, there's a single vertical streak, cautions Krant, this could be a sign of a tumor growing at the root of the nail.
Longitudinal nail grooves in children: Introduction. Longitudinal nail grooves in children: Longitudinal nail grooves in children refer to furrows or ruts in a child's fingernails that run lengthwise.See detailed information below for a list of 9 causes of Longitudinal nail grooves in children, Symptom Checker, including diseases and drug side effect causes.onditions listing medical symptoms: Longitudinal nail grooves in children: The following list of conditions have ' Longitudinal nail grooves in children ' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete.