A C150 PLT GOES OFF THE END OF A 2600 FT RWY ON A FROSTY DAY AFTER PURPORTING TO HAVE REMOVED FROST FROM WINGS DURING PREFLT. RWY CONDITION WAS PATCHY ICE.

Narrative

IT WAS A BEAUTIFUL SUNNY DAY AND SINCE I HAVE BEEN WORKING ON MY INST RATING I CHOSE TO GO ON A BRIEF VFR FLT TO ENJOY THE SCENERY. I RENTED A C150 FROM THE LCL FBO WHERE I RECEIVED MY PVT PLT'S LICENSE FROM. I DID A THOROUGH PREFLT AND FOUND THE ACFT TO BE AIRWORTHY. THERE WAS SOME LIGHT FROST ON THE WINGS AND SURFACES AND I BRUSHED THEM DOWN VERY THOROUGHLY WITH A BROOM TO REMOVE AS MUCH AS I COULD. I STARTED THE PLANE; TAXIED TO RWY 15 AND DID A RUN-UP. THE TWR CLRED ME TO TAKE OFF AND I APPLIED FULL PWR AND BEGAN MY TKOF. 1/2 WAY DOWN THE RWY AND PAST VR; THE PLANE JUST DIDN'T 'FEEL' LIKE IT WAS DEVELOPING ENOUGH LIFT AND I ABORTED THE TKOF. UNFORTUNATELY; THE RWY WAS COVERED IN PATCHY ICE AND BRAKING WAS POOR. I SUBSEQUENTLY WAS UNABLE TO STOP IN TIME AND SLID OFF THE END OF THE RWY; DESPITE HAVING PLENTY OF RWY TO STOP IN UNDER NORMAL CIRCUMSTANCES. MY ANALYSIS OF THE INCIDENT HAS LED ME TO A NUMBER OF CONCLUSIONS: 1) HAVING ALWAYS HAD WING COVERS ON ACFT I'D FLOWN PREVIOUSLY; I WAS A LITTLE UNCOMFORTABLE WITH THE FROST ON THE WINGS. I BRUSHED IT VERY WELL BUT IT WAS STILL A CONCERN IN THE BACK OF MY MIND. 2) I HADN'T FLOWN A C150 IN ABOUT 2 MONTHS. I HAD BEEN FLYING C172'S WHILE WORKING ON MY INST RATING; SO I WAS NOT TOTALLY USED TO FLYING IT; BUT I FELT COMFORTABLE ENOUGH TO MAKE THE FLT. 3) I CHOSE RWY 15; WHICH IS 2600 FT LONG; INSTEAD OF RWY 6; WHICH IS 4000 FT LONG; OUT OF HABIT BECAUSE IT IS CLOSER TO THE FBO AND THE ONE I USED MOST OF THE TIME IN PREVIOUS FLTS. 4) I STILL QUESTION WHETHER MY DECISION TO ABORT WAS THE CORRECT CHOICE. WHILE THE PLANE DIDN'T 'FEEL' LIKE IT WAS GOING TO LIFT OFF SOON; I MAY NOT HAVE PULLED BACK FAR ENOUGH ON THE YOKE. THE FROST I HAD BRUSHED DOWN SO WELL WAS STILL A CONCERN TO ME AND AS SOON AS I 'FELT' LIKE THE PLANE WASN'T GOING TO FLY; I DECIDED TO ABORT. OTHER PLTS WHO SAW THE PLANE AFTERWARDS SAID THAT I SHOULD HAVE HAD NO PROB DEVELOPING LIFT WITH HOW WELL THE WINGS HAD BEEN BRUSHED. IF I HAD TAKEN THE LONGER RWY; I WOULDN'T HAVE FELT THE URGENCY TO ABORT WITH THE EXTRA RWY AHEAD OF ME AND MIGHT HAVE TAKEN OFF JUST FINE. BUT THEN AGAIN; I MIGHT NOT HAVE; AND I DIDN'T WANT TO HIT THE END OF THE RWY GOING FAST. MY COMFORT WITH THE ACFT AND HABIT OF USING THE RWY I CHOSE ALONG WITH MY APPREHENSION OF HAVING ANY KIND OF FROST ON THE WING AND LACK OF RECENT TIME IN THE MODEL OF PLANE WERE ALL CONTRIBUTING FACTORS. I HAVE CERTAINLY LEARNED A LOT FROM THIS EXPERIENCE. I WILL ALWAYS TAKE THE LONGEST RWY AVAILABLE FROM NOW ON; AND IF I AM APPREHENSIVE ABOUT SOMETHING LIKE THE FROST; I WILL EITHER CONSULT OTHERS ABOUT MY CONCERNS; OR CANCEL THE FLT. I WILL ALSO BE MORE VIGILANT ABOUT BEING COMPLACENT AND DOING THINGS OUT OF HABIT RATHER THAN STOPPING AND THINKING THEM THROUGH.