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  2. Radio-controlled aircraft - Wikipedia

    en.wikipedia.org/wiki/Radio-controlled_aircraft

    In other words, the airplane comes 99% assembled just like an RTF one does, but you need to supply your own transmitter, receiver, and battery pack. Plug-N-Play radio control planes are the perfect answer for aeromodellers who want to buy and fly more than one RTF RC plane, but don't want to have a separate transmitter for each one. [12]

  3. E6B - Wikipedia

    en.wikipedia.org/wiki/E6B

    This is one area where the E6-B and CRP-1 are different. Since the CRP-1s are made for the UK market, they can be used to perform the added conversions of Imperial to Metric units. The wheel on the back of the calculator is used for calculating the effects of wind on cruise flight .

  4. Cox model engine - Wikipedia

    en.wikipedia.org/wiki/Cox_model_engine

    The Space Bug Junior is a Space Bug with a smaller plastic tank. This cheaper version also only had one intake bypass port and sold for $3.95. 1955 Strato Bug (Cat#380 - manufactured 1955) Basically the same engine as a Space Bug but included a two-piece fuel tank which was cheaper to make than the original Space Bug tank.

  5. Projected area - Wikipedia

    en.wikipedia.org/wiki/Projected_area

    Projected area is the two dimensional area measurement of a three-dimensional object by projecting its shape on to an arbitrary plane. This is often used in mechanical engineering and architectural engineering related fields, especially for hardness testing, axial stress , wind pressures, and terminal velocity .

  6. Reinforced concrete column - Wikipedia

    en.wikipedia.org/wiki/Reinforced_Concrete_Column

    A reinforced concrete column is a structural member designed to carry compressive loads, composed of concrete with an embedded steel frame to provide reinforcement. For design purposes, the columns are separated into two categories: short columns and slender columns.

  7. Carbon-fiber reinforced polymer - Wikipedia

    en.wikipedia.org/wiki/Carbon-fiber_reinforced...

    This was one of the first commercial aircraft to have wing spars made from composites. The Airbus A380 was one of the first commercial airliners to have a central wing-box made of CFRP; it is the first to have a smoothly contoured wing cross-section instead of the wings being partitioned span-wise into sections. This flowing, continuous cross ...

  8. A bus-sized piece of concrete on the beach: A tale of waste ...

    www.aol.com/news/bus-sized-piece-concrete-beach...

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  9. 3D concrete printing - Wikipedia

    en.wikipedia.org/wiki/3D_concrete_printing

    TU/e Built Environment's Rohaco 3D Concrete Printer being extensively used for Concrete Printing Research. 3D concrete printing, or simply concrete printing, refers to digital fabrication processes for cementitious materials based on one of several different 3D printing technologies. 3D-printed concrete eliminates the need for formwork, reducing material waste and allowing for greater ...