GA flight instructor reported while in the pattern at lvn a corporate jet announced their intention ...

Attributes
ACN	1435696
Time
Date	201703
Local Time Of Day	0601-1200
Place
Locale Reference	LVN.Airport
State Reference	MN
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	Climb
Route In Use	Visual Approach
Flight Plan	None
Aircraft 2
Make Model Name	Small Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Route In Use	Direct
Flight Plan	IFR
Person 1
Function	Instructor Pilot Not Flying
Qualification	Flight Crew Commercial Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 80 Flight Crew Total 2300 Flight Crew Type 2300
Events
Anomaly	Conflict Ground Conflict Critical
Miss Distance	Horizontal 4000

Narrative:

Three aircraft were involved in this incident. The corporate jet about to depart runway 12; the experimental that took off on runway 3; and the trainer my student and I were in as observers on downwind. My student and I were doing touch and go pattern work on runway 12 at lvn. Winds were calm. Normally; 30 is the calm wind runway; but at the beginning of operations that morning; aircraft favored 12. During one of our circuits; a corporate jet taxied out to the takeoff end of 12 in order to await our arrival/departure. As we were climbing out and turning a right crosswind; I heard a white experimental aircraft announce takeoff on 30. At the same time; the jet announced departure on 12. I informed the experimental that he should not enter the runway as a jet was about to depart and 12 was the current active runway (we had been announcing our position in the pattern all along). The experimental continued its takeoff roll without any further communication. I told the jet on CTAF that he had a renegade aircraft heading his way; so he stopped.during this time; we executed a left hand turn away from the traffic pattern to ensure we would not conflict with the experimental. The jet pilot thanked me for the heads up. The offending aircraft yelled the word 'renegade' on the airwaves as a taunt and continued to depart the area.

Original NASA ASRS Text

Title: GA flight instructor reported while in the pattern at LVN a corporate jet announced their intention to depart Runway 12 while an experimental aircraft announced and continued to takeoff on Runway 30.

Narrative: Three aircraft were involved in this incident. The corporate jet about to depart Runway 12; the experimental that took off on Runway 3; and the trainer my student and I were in as observers on downwind. My student and I were doing touch and go pattern work on runway 12 at LVN. Winds were calm. Normally; 30 is the calm wind runway; but at the beginning of operations that morning; aircraft favored 12. During one of our circuits; a corporate jet taxied out to the takeoff end of 12 in order to await our arrival/departure. As we were climbing out and turning a right crosswind; I heard a white experimental aircraft announce takeoff on 30. At the same time; the jet announced departure on 12. I informed the experimental that he should not enter the runway as a jet was about to depart and 12 was the current active runway (we had been announcing our position in the pattern all along). The experimental continued its takeoff roll without any further communication. I told the jet on CTAF that he had a renegade aircraft heading his way; so he stopped.During this time; we executed a left hand turn away from the traffic pattern to ensure we would not conflict with the experimental. The jet pilot thanked me for the heads up. The offending aircraft yelled the word 'renegade' on the airwaves as a taunt and continued to depart the area.

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.

GA flight instructor reported while in the pattern at lvn a corporate jet announced their intention to depart runway 12 while an experimental aircraft announced and continued to takeoff on runway 30.