C172 pilot hears traffic make an '8 mile call' on CTAF at jyo while they prepare to take the runway....

Attributes
ACN	1272664
Time
Date	201506
Local Time Of Day	1201-1800
Place
Locale Reference	JYO.Airport
State Reference	VA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	Visual Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	Final Approach
Route In Use	Visual Approach
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Instrument Flight Crew Commercial Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 2 Flight Crew Total 500 Flight Crew Type 200
Events
Anomaly	Conflict Airborne Conflict
Miss Distance	Vertical 500

Narrative:

Heard traffic make '8 mile call' when holding short. Thinking that 8 miles was more than enough time to safely turn cross-wind and allow traffic to enter downwind with spacing behind me. Adsb installed; no traffic warning and negative visual on the traffic. Other aircraft didn't provide any additional position updates after the 8NM call. Also loss of situational awareness (sa) on my part. I assumed he was listening; would make visual contact and enter the down-wind behind me. Turned crosswind at 900 MSL (tph of 1200) and quickly received call asking if I saw incoming traffic. My reply was 'negative' other aircraft reported passing behind and 500 above my altitude. After that the other aircraft (unknown type) which was mistake number 1 when I was holding short; slowed and entered downwind behind me.lack of sa on both pilots part caused near miss. I failed to determine aircraft type (I'm guessing it was a multi) and with that speed to cover the 8 NM. I wrongly assumed I had enough time and depart and turn crosswind. I also wrongly assumed traffic would enter the downwind behind me. I decided to solo as I needed to regain day landing currency. Having not flown in a while I should have taken an instructor or second pilot as safety observer and second set of eyes and ears.

Original NASA ASRS Text

Title: C172 pilot hears traffic make an '8 mile call' on CTAF at JYO while they prepare to take the runway. Thinking 8 miles was plenty to takeoff and make a crosswind turn the C172 takes off and on turn to crosswind is told by pilot of the other traffic they were cut off by their crosswind turn. The aircraft entering the pattern slows and maneuvers behind the C172.

Narrative: Heard traffic make '8 mile call' when holding short. Thinking that 8 miles was more than enough time to safely turn cross-wind and allow traffic to enter downwind with spacing behind me. ADSB installed; no traffic warning and negative visual on the traffic. Other aircraft didn't provide any additional position updates after the 8NM call. Also loss of Situational Awareness (SA) on my part. I assumed he was listening; would make visual contact and enter the down-wind behind me. Turned crosswind at 900 MSL (TPH of 1200) and quickly received call asking if I saw incoming traffic. My reply was 'negative' Other aircraft reported passing behind and 500 above my altitude. After that the other aircraft (Unknown type) which was mistake number 1 when I was holding short; slowed and entered downwind behind me.Lack of SA on both pilots part caused near miss. I failed to determine aircraft type (I'm guessing it was a multi) and with that speed to cover the 8 NM. I wrongly assumed I had enough time and depart and turn crosswind. I also wrongly assumed traffic would enter the downwind behind me. I decided to solo as I needed to regain day landing currency. Having not flown in a while I should have taken an instructor or second pilot as safety observer and second set of eyes and ears.

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.