Problem found and solved. I crashed again, then went off line, renamed the Aces High folder and downloaded the game again. Went on line, first flight lasted just a little over 7 minutes. Logged off and thought, what has changed on my computer that may cause this.
I recently downloaded the free paint program. It, the paint program, had issues with action video/screen capture program according to the Paint program people. I had sent them a crash report.
I uninstalled the paint program and my crashes have stopped.