Here is a non-parabolic approach:
An aircraft able to sustain straight and level powered flight at 90km altitude, at a speed of 22'596 km/h or 6276 m/s will feel 37.83% of Earth's gravity, which is Mars gravity, until it runs out of fuel. During powered flight it will circle the Earth every 1 hours 47 minutes.
North American X-15 was 15'000km/h short on top speed to achieve this, but suppose we have the technology.