Aluminum and composite materials are commonly used to make airplane bodies due to their lightweight, durable, and corrosion-resistant properties. These materials help to reduce the overall weight of the aircraft without sacrificing structural integrity.
paper and glue
the hidden object weight the same as the airplane
The mass of a paper airplane is equal to the sheet of paper it is constructed out of, plus any additional materials.
The size and shape
If the hidden object has the same properties as the airplane, it likely can fly, has wings for lift, an engine for propulsion, and is designed for aerial transportation.
Some alternative materials that can be used for magnesium electrodes include graphite, platinum, titanium, and carbon-based materials like carbon nanotubes. These materials can offer different properties and performance characteristics compared to pure magnesium electrodes.
The materials for most of the early aircraft were a wood frame and muslin covering with a few metal parts.
Spruce and muslin.
This all varies on materials which could be anything from wood, metal, composites. The cost varies depending on design and materials used.
All sorts of materials, you need to be more specific about which part you are wanting information about.
The shipping papers for hazardous materials on an airplane are called the "Shipper's Declaration of Dangerous Goods."