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Ballast Ballast is removable or permanently installed weight in an aircraft used to bring the center of gravity into the allowable range. Center-of-Gravity Limits Center of gravity (CG) limits are specified longitudinal (forward and aft) and/or lateral (left and right) limits within which the aircraft's center of gravity must be located during ...
Ballast weight is also added to a race car to alter its performance. In most racing series, cars have a minimum allowable weight. Often, the actual weight of the car is lower, so ballast is used to bring it up to the minimum. The advantage is that the ballast can be positioned to affect the car's handling by changing its load distribution.
An aerostat (from Ancient Greek ἀήρ (aḗr) 'air' and στατός (statós) 'standing', via French) or lighter-than-air aircraft is an aircraft that relies on buoyancy to maintain flight. Aerostats include the unpowered balloons (free-flying or tethered ) and the powered airships .
Data from Sailplane Directory and Soaring General characteristics Crew: one Wingspan: 49 ft 3 in (15.0 m) Wing area: 109 sq ft (10.1 m 2) Aspect ratio: 22.2:1 Airfoil: Wortmann FX 67 170/150 Empty weight: 425 lb (193 kg) Gross weight: 900 lb (408 kg) including 185 lb (84 kg) of water ballast Performance Maximum glide ratio: 36.5:1 at 58 mph (93 km/h) Rate of sink: 130 ft/min (0.66 m/s) at 49 ...
In aviation, manufacturer's empty weight (MEW) (also known as manufacturer's weight empty (MWE)) is the weight of the aircraft "as built" and includes the weight of the structure, power plant, furnishings, installations, systems, and other equipment that are considered an integral part of an aircraft before additional operator items are added for operation.
The Monarch Butterfly has a very low 0.168 kg/m 2 wing loading The McDonnell Douglas MD-11 has a high 837 kg/m 2 maximum wing loading. In aerodynamics, wing loading is the total weight of an aircraft or flying animal divided by the area of its wing.
2. United Airlines. On-Time Arrivals: 80.93% United had the second most on-time flights in 2024. At almost 81%, that’s pretty good odds that you’ll get to your destination (and back home ...
The weight added to the aircraft above its OEW for a given flight is variable and includes fuel for the flight and the cargo. Cargo depends upon the type of aircraft; i.e., passengers plus baggage for a transport or commuter airplane, materiel for a cargo airplane, stores for fighters/bombers and service loads such as meals and beverages.