The altitudes you mentioned make me think it's a zero G flight simulator
www.houstonchronicle.com/business/technology/amp/Zero-G-gives-wannabe-space-tourists-a-sense-of-12620431.php
The altitudes you mentioned make me think it's a zero G flight simulator
www.houstonchronicle.com/business/technology/amp/Zero-G-gives-wannabe-space-tourists-a-sense-of-12620431.php