Syma S107 Remote Control Helicopter – I was immediately impressed with the quality of the helicopter. It is solidly constructed with a sturdy metal frame with a plastic fairing Rechargeable via a supplied USB cable, the hardest part of setting it up after I removed it from the box was waiting for about 45 minutes for the helicopter to obtain a full charge.
See the video and read about my experiences
...read more
Posted in Aircraft, Video | Tagged Helicopter
Optimum Altitude- The best aircraft cruise altitude for a given weight and corresponding air temperature. An increase in temperature will lower the level of altitude capability and the optimum altitude. In technical terms, optimum altitude is defined as the altitude at which the equivalent airspeed for a thrust setting will equal the square root of [...]
...read more
Posted in Aircraft | Tagged Altitude
Datum – An imaginary vertical plane or line from which all horizontal measurements of arm are taken, generally for balance purposes. Once the datum has been selected, all moment arms and the location of CG range are measured from this point. The datum appears on drawings as a vertical line, which is perpendicular (90°) to [...]
...read more
Posted in Aircraft | Tagged AMT, Maintenance |
Types of aviation altitudes: Indicated Altitude – Altitude data shown on the altimeter using the current altimeter setting input by the pilot. True Altitude – Height above mean sea level (MSL). Absolute Altitude – Height above ground level (AGL). Pressure Altitude – Indicated altitude when an altimeter is set to 29.92 in Hg and used [...]
...read more
Posted in Aircraft
Wing Loading – The total weight of the airplane divided by the planform area of the wing.
...read more
Posted in Aircraft | Tagged Aerodynamics
Pressure Coefficient – The pressure coefficient is a non-dimensional form of the pressure. It is defined as the difference of the free stream and local static pressures all divided by the dynamic pressure.
...read more
Posted in Aircraft | Tagged Aerodynamics
Load Cell - A component in an electronic weighing system that is placed between the jack and the jack pad on the aircraft. The load cell contains strain gauges whose resistance changes with the weight on the cell. Electronic load cells are used when the aircraft is weighed by raising it on jacks. The cells are placed between the [...]
...read more
Posted in Aircraft | Tagged Weight & Balance
Q-Corner or Coffin Corner is a term used to describe operations at high altitudes where low indicated airspeeds yield high true airspeeds (MACH number) at high angles of attack. The high angle of attack results in flow separation which causes buffet. Turning maneuvers at these altitudes increase the angle of attack and result in stability [...]
...read more
Posted in Aircraft | Tagged Aerodynamics, Aircraft
MACH -Named after Ernst Mach, a 19th century Austrian physicist, is the ratio of an aircraft’s true speed as compared to the local speed of sound at a given time or place. MACH number (MACH Speed) is a decimal number (M) representing the true airspeed (TAS) relationship to the local speed of sound (e.g., TAS [...]
...read more
Posted in Aircraft | Tagged Aerodynamics, Aircraft, Airspeed, Systems
Drag Divergence is a phenomenon that occurs when an airfoil’s drag increases sharply and requires substantial increases in power (thrust) to produce further increases in speed. This is not to be confused with MACH crit. The drag increase is due to the unstable formation of shock waves that transform a large amount of energy into [...]
...read more
Posted in Aircraft | Tagged Aerodynamics
