Narrative:

After a normal takeoff from jhm, we climbed to approximately 1500' MSL. Before starting a crosswind turn to the left, first officer and I carefully cleared the area to the right, ahead, and to the left. Then first officer started a left turn to our crosswind. Our climb out heading was approximately 030 degrees. First officer had completed approximately 100 degrees of turn to a heading of about 290 degrees when the incident occurred. A single engine aircraft crossed from our 3 O'clock across to our 11 O'clock, above us and moving to our left. The pilot did not make radio contact with jhm unicom until later. He had crossed the airport's runway's centerline, until he had crossed our crosswind departure line, and not until he had almost hit us. He stated over the radio that he never saw us. I advised him to contact unicom earlier in his routing to do more to avoid this sort of thing. He was moving from behind us and at a higher speed and never saw us. If he had used his radio and his eyes more fully, we could have been safer and better able to avoid this sort of very dangerous conduct.

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Original NASA ASRS Text

Title: ARR DEP TRAFFIC HAVE POTENTIAL CONFLICT WITH LESS THAN STANDARD SEPARATION NEAR NON TWR ARPT UNICOM FAC.

Narrative: AFTER A NORMAL TKOF FROM JHM, WE CLBED TO APPROX 1500' MSL. BEFORE STARTING A XWIND TURN TO THE LEFT, F/O AND I CAREFULLY CLRED THE AREA TO THE RIGHT, AHEAD, AND TO THE LEFT. THEN F/O STARTED A LEFT TURN TO OUR XWIND. OUR CLBOUT HDG WAS APPROX 030 DEGS. F/O HAD COMPLETED APPROX 100 DEGS OF TURN TO A HDG OF ABOUT 290 DEGS WHEN THE INCIDENT OCCURRED. A SINGLE ENG ACFT CROSSED FROM OUR 3 O'CLOCK ACROSS TO OUR 11 O'CLOCK, ABOVE US AND MOVING TO OUR LEFT. THE PLT DID NOT MAKE RADIO CONTACT WITH JHM UNICOM UNTIL LATER. HE HAD CROSSED THE ARPT'S RWY'S CENTERLINE, UNTIL HE HAD CROSSED OUR XWIND DEP LINE, AND NOT UNTIL HE HAD ALMOST HIT US. HE STATED OVER THE RADIO THAT HE NEVER SAW US. I ADVISED HIM TO CONTACT UNICOM EARLIER IN HIS RTING TO DO MORE TO AVOID THIS SORT OF THING. HE WAS MOVING FROM BEHIND US AND AT A HIGHER SPD AND NEVER SAW US. IF HE HAD USED HIS RADIO AND HIS EYES MORE FULLY, WE COULD HAVE BEEN SAFER AND BETTER ABLE TO AVOID THIS SORT OF VERY DANGEROUS CONDUCT.

Data retrieved from NASA's ASRS site as of July 2007 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.