It is still a relatively challenging flight plan for a young man who has never, as far as anyone knows, received any pilot's instruction.
Tests against a conventional PID-based auto-throttle illustrate the current controller's superior robustness under challenging flight conditions (turbulence).
In the following days, Wilbur made a series of technically challenging flights, including figure-eights, demonstrating his skills as a pilot and the capability of his flying machine, which far surpassed those of all other pioneering aircraft and pilots of the day.
Modifying the aircraft so that it could fly safely when the door for the telescope was open was a challenging process, and test flights did not begin until 2007.
"It's been a challenging few days," Ms. Elliott said, adding that most flights were now running on schedule, after the airline added flights and put larger aircraft into service.
Do a thorough risk assessment in your pre-flight planning before attempting to fly a challenging approach and landing.
The attitude control of a launch vehicle is a challenging task due to the dramatically varying vehicle dynamics along a flight path.
The fixtures computer has handed Nugent and his Leicester team-mates a challenging opening to the club's first season for 10 years back in the top flight.
It's quite a challenging walk along this stunning bit of Yorkshire coast, with high-level cliff paths, steep flights of steps and areas of cliff erosion.
Do a familiarization flight with an instructor or pilot experienced with an airfield's peculiarities before attempting a challenging landing by yourself at a strange strip.
The Australian Maritime Safety Authority (AMSA) reiterates this is a challenging search operation and continues to hold grave fears for the passengers and crew on board the missing flight.
