In a graph of horsepower versus speed, the point where the power available and the power required curves cross. Above that speed, more power is required than available.
160 knots or 185 miles per hour (max or "never exceed speed") this aircraft is not capable of this speed in level flight. The maximum speed in level flight is around 125 knots.
An absolute ceiling is the maximum altitude above sea level at which an aircraft or missile can maintain horizontal flight under normal conditions.
Aircraft and maintenance level
The lift force is the force acting against the aircraft's weight. For straight and level flight, lift acts in the upward vertical direction and the weight of the aircraft acts in the downward vertical direction. For level flight, lift = weight.
When the aircraft is in straight & level flight , accelerometer reads 1g , as the aircraft comes to land on the ground 1g tuns to ZERO
The maximum altitude of any military aircraft is dependent on many things including the type of craft. The maximum altitude for a military jet is approximately 60 thousand feet. At that level the flight crew will need special equipment to allow them to breathe and stay conscious in the thin air.
Datum is an imaginary vertical plane from which all horizontal measurements are taken with the aircraft in a level flight attitude.
It is an airplane that has a take-off weight not heavier than 560 kilograms (1,200 lb); a maximum of two seats; a maximum speed in level flight with maximum continuous power (Vh) of 138 mph (120 knots) CAS; fixed undercarriage; an unpressurized cabin; and a single non-turbine engine driving a propeller if it is a powered aircraft. Check the related link for more information.
There are two types of maximum altitude. The first is set by the FAA and is known as Service Ceiling and the second is the maximum altitude, above sea level, at which an aircraft can maintain horizontal flight under standard atmospheric conditions. This is called Absolute Ceiling. Absolute ceiling is also affected by another factor: weight.
I assume you're referring to an aircraft. Straight and level flight is achieved in an aeroplane, glider or airborne vehicle when lift is approximately equal to drag - eg. The craft is not rising or descending, providing the 'level flight'. In addition, the roll of the aircraft is usually neutral, providing the 'straight', and thrust is approx. equal to drag to maintain a constant speed.
the forces are equal to balance the aircraft in flight
Gravity