A pilot departed CTAF runway 14 after making the required communications and had an encounter with a...

Narrative:

After following two other landing aircraft in the traffic pattern I completed an uneventful; full stop landing on runway 14. I then taxied via the parallel taxiway back to the departure end of runway 14 for another take-off. Holding short of the runway I completed my pre takeoff checklist; visually cleared the area and announced my intentions to depart runway 14 on the CTAF at this non-towered airport. After hearing no other local traffic; and clearing the area once again; I taxied onto the active runway 14 and began a routine takeoff. During climb out I saw another aircraft crossing in front of me; from right to left; in a climb which had apparently departed runway 7 at the same time. I passed behind and below the departing aircraft. No evasive action was taken by either aircraft and horizontal distance was at least 500 feet. Neither aircraft heard the other's radio calls and; knowing the operator of the other aircraft; I suspect that we may have inadvertently blocked each other's transmissions by transmitting at the same time. Another factor is that the departure ends of these two runways are not visible to each other on the ground and; possibly; 2-way radio communications may have also been impaired due to obstacles (trees; buildings; vehicles; etc.) between us. At the time of the occurrence wind direction was about 10 from 170 with visibility unrestricted and scattered clouds around 3;000 feet. My flashing beacon and landing light were on.suggestions for avoiding future situations like this would be for aircraft conducting cross-wind operations to make multiple calls (e.g. Taxiing to the x-wind runway; departing the x-wind runway; etc.); encourage operators to avoid using x-wind/non-favored runways and; perhaps; to have the airport operator/FAA conduct some ground tests to see if adequate radio reception is always possible on the ground between the various departure ends of the different runways.

Original NASA ASRS Text

Title: A pilot departed CTAF Runway 14 after making the required communications and had an encounter with a light twin which departed crossing Runway 7. Both pilots stated the required communications were made.

Narrative: After following two other landing aircraft in the traffic pattern I completed an uneventful; full stop landing on runway 14. I then taxied via the parallel taxiway back to the departure end of runway 14 for another take-off. Holding short of the runway I completed my pre takeoff checklist; visually cleared the area and announced my intentions to depart runway 14 on the CTAF at this non-towered airport. After hearing no other local traffic; and clearing the area once again; I taxied onto the active runway 14 and began a routine takeoff. During climb out I saw another aircraft crossing in front of me; from right to left; in a climb which had apparently departed runway 7 at the same time. I passed behind and below the departing aircraft. No evasive action was taken by either aircraft and horizontal distance was at least 500 feet. Neither aircraft heard the other's radio calls and; knowing the operator of the other aircraft; I suspect that we may have inadvertently blocked each other's transmissions by transmitting at the same time. Another factor is that the departure ends of these two runways are not visible to each other on the ground and; possibly; 2-way radio communications may have also been impaired due to obstacles (Trees; buildings; vehicles; etc.) between us. At the time of the occurrence wind direction was about 10 from 170 with visibility unrestricted and scattered clouds around 3;000 feet. My flashing beacon and landing light were on.Suggestions for avoiding future situations like this would be for aircraft conducting cross-wind operations to make multiple calls (e.g. taxiing to the x-wind runway; departing the x-wind runway; etc.); encourage operators to avoid using x-wind/non-favored runways and; perhaps; to have the airport operator/FAA conduct some ground tests to see if adequate radio reception is always possible on the ground between the various departure ends of the different runways.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1284046
Time
Date	201507
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft High Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	None
Flight Plan	None
Aircraft 2
Make Model Name	Small Transport
Operating Under FAR Part	Part 135
Flight Phase	Initial Climb
Route In Use	Direct
Flight Plan	IFR
Component
Aircraft Component	Air/Ground Communication
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 15 Flight Crew Total 5500 Flight Crew Type 1000
Events
Anomaly	Conflict Airborne Conflict Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 500

A pilot departed CTAF runway 14 after making the required communications and had an encounter with a light twin which departed crossing runway 7. Both pilots stated the required communications were made.