Narrative:

On taxiing out my student tuned into the [automated weather broadcast] which was reporting winds from 020 degrees at 4 knots. On taxi out my student called on the radio for a 'radio check' but there was no response. I then called to unicom with no luck. My thought process was that they are not right by the radio to answer. We continued to taxi to the runway for crosswind takeoff and landing training. On taxiing onto the runway my student made an announcement [announcing our departure]. During the takeoff roll we rotated at rotate speed; which is 60 mph; than noticed an airplane landing on [the crossing] runway. My student immediately started to bank the aircraft to the right. I estimated the other aircraft missed us by 10 feet. We were in a piper 28-161; and the other aircraft was a cessna 150. The other pilot was questioned and he stated that his radio was not working and that he flew over the field to observe the wind sock. I feel that both I and the pilot in the other aircraft should have been more observant; however taking off on [one runway] makes it impossible to observe aircraft on final for [the other runway]. This is not an uncommon at this airport; and it's a highly active training environment. There is an unwritten rule for the locals that with winds less than 7 knots you should use either [a specified] runway based on prevailing winds and it is the longer runway. The fact that the other aircraft's radios were inoperative and no calls made on entering the pattern was a big factor; but it does not relieve both pilots from being more vigilant.

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Original NASA ASRS Text

Title: An instructor and student announced their intentions and began to takeoff at an uncontrolled airport; then observed another unannounced aircraft landing on a crossing runway. The instructor pilot estimated that the aircraft came within 10 feet of a collision.

Narrative: On taxiing out my student tuned into the [automated weather broadcast] which was reporting winds from 020 degrees at 4 knots. On taxi out my student called on the radio for a 'Radio check' but there was no response. I then called to Unicom with no luck. My thought process was that they are not right by the radio to answer. We continued to taxi to the runway for crosswind takeoff and landing training. On taxiing onto the runway my student made an announcement [announcing our departure]. During the takeoff roll we rotated at rotate speed; which is 60 mph; than noticed an airplane landing on [the crossing] runway. My student immediately started to bank the aircraft to the right. I estimated the other aircraft missed us by 10 feet. We were in a Piper 28-161; and the other aircraft was a Cessna 150. The other pilot was questioned and he stated that his radio was not working and that he flew over the field to observe the wind sock. I feel that both I and the pilot in the other aircraft should have been more observant; however taking off on [one runway] makes it impossible to observe aircraft on final for [the other runway]. This is not an uncommon at this airport; and it's a highly active training environment. There is an unwritten rule for the locals that with winds less than 7 knots you should use either [a specified] runway based on prevailing winds and it is the longer runway. The fact that the other aircraft's radios were inoperative and no calls made on entering the pattern was a big factor; but it does not relieve both pilots from being more vigilant.

Data retrieved from NASA's ASRS site as of July 2013 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.