The U.S. Army has issued safety warnings that amount to a delay in the deployment of the T-11. It appears the U.S. Army lacks confidence in the published wind drift offset factors calculated by the U.S. Air Force. The restriction seems to be centered around ground marker release system or GMRS and verbally initiated release systems or VIRS. Windrift is factored in drop zone computations. Safety issues are not structural but an error in offset factors could adversely influence drop zone calculations resulting in a potentially hazardous situation.
For additional details see Army Times.

