The regulations governing the various types of aircraft are based on weight categories. Different categories have different performance and equipment requirements. As a general rule, heavier categories of aircraft would be expected to have more stringent requirements with respect to performance and safety equipment, presumably because they would be more likely to be used in commercial aviation. Hope that helps.
Aircraft are either lighter than air or heavier than air. A blimp is lighter than air, so is a hot air balloon. An airplane is heavier than air. They are in different categories because they use different techniques to takeoff and land. They have different requirements to operate. They work in a different manner. And they have different rules.
One is lighter and the other one is heavier. :D
skin heavier
no
A stone (unit of weight or mass) is 14 times heavier than a pound.
millimeter = unit of distance, not weight kilometer = unit of distance, not weight
Yes; helium has an atomic weight of 4.00260, and lead has an atomic weight of 207.2.
The weight of an aircraft counteracts the lift produced by an aircraft. The heavier an aircraft weighs the greater the lift needed to get off the ground.
Not necessarily. The aircraft with better power to weight ratio will fly fastest.
The lift off speed is dependant upon the weight of the aircraft. The heavier the aircraft the higher the speed. At maximum take off weight of 875,000 lbs (396,890 kgs) Vr (rotation speed) will be about 175 knots and V2 about 185 knots.
In regards to weight, since the wing is the main lifting body, heavier aircraft will require a larger wing with greater wing area. In regards to speed, a larger wing will of course produce more aerodynamic drag which tends to slow the aircraft down. Obviously large heavy aircraft must have a correspondingly large amount of thrust to overcome this.
Aluminum. For some aircraft, a heavier but much stronger metal called titanium is used.
115lbs is heavier.
The Boeing 737 is categorized as a Large Aircraft. The next category up is called a Heavy Aircraft and that category starts at 300,000 pounds (maximum certificated gross takeoff weight). A special "Heavy" category starting around 255,000 pounds was created for the Boeing 757 due to it's propensity to generate wake turbulence.
Her weight grows heavier and heavier as she eats more and more pie
If you mean "weight categories" there are 17.
This depends on various factors, including the type of aircraft being flown and its Maximum Takeoff Weight (MTOW), the aircraft's configuration, density of the air (more weight can be taken during the winter season versus summer due to the surface cold air being more dense), runway length versus needed roll to obtain lift on departure, runway length at landing point (Heavier the aircraft on landing, the greater the stopping distance needed), and how the weight is distributed throughout the aircraft.
Categories of aircraft for which a pilot may be rated are:[1][2] * Airplane * Rotorcraft * Glider * Lighter than air * Powered lift * Powered parachute * Weight-shift-control Most aircraft categories are further broken down into classes. If a category is so divided, a pilot must hold a class rating to operate an aircraft in that class:[1] * The Airplane category is divided into single-engine land, multi-engine land, single-engine sea and multi-engine sea classes * The Rotorcraft category is divided into helicopter and gyroplane classes * The Lighter-than-air category is divided into airship and balloon classes * The Powered parachute category is divided into powered parachute land and powered parachute sea * The Weight-shift-control category is divided into weight-shift-control land and weight-shift-control sea
skin heavier