Narrative:

After departure from a hospital pad I contacted tower for clearance through the airspace. Tower cleared me through the airspace at 800 ft or above and notified me of inbound traffic 8 miles out. I was less than 3 miles from the airfield at the time of receiving the clearance and continued my climb to 800 ft for a midfield crossing on a heading of 060. As I approached the north east side of the airfield a pair of T-45s in formation passed from left to right less than 500 ft in front of and 100 ft above my aircraft. No alerts were given to me by tower; [and] TCAS did not activate until the T-45s were already past me. I estimate the speed of the T-45s to have been in excess of 300 KTS.

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Original NASA ASRS Text

Title: An EMS helicopter pilot reported an NMAC with two T-45s at low altitude and high speed over a Naval Air Station.

Narrative: After departure from a hospital pad I contacted Tower for clearance through the airspace. Tower cleared me through the airspace at 800 FT or above and notified me of inbound traffic 8 miles out. I was less than 3 miles from the airfield at the time of receiving the clearance and continued my climb to 800 FT for a midfield crossing on a heading of 060. As I approached the north east side of the airfield a pair of T-45s in formation passed from left to right less than 500 FT in front of and 100 FT above my aircraft. No alerts were given to me by Tower; [and] TCAS did not activate until the T-45s were already past me. I estimate the speed of the T-45s to have been in excess of 300 KTS.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.