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NexGen Flight Simuator

December 2012 Previous month
Ok so here is a map of our simulator: A small network. The CDU. The IO Processor #1. The Simulation Processor. A block diagram of the arduino and what's it doing. Interfaces to the display controllers via I2C. Ps2 keyboard Interface. The switches via some custom hardware. USB virtual serial port. Client Software. A Virtual Serial Port, from the arduino to the IOP#1. The Host software running on IOP#1   The Client Software running on the arduino duemilanove will use a one byte ...
NexGen is a heterogeneous collection of computers, and embedded microprocessors. These possessors must all listen and talk together. To do this we must rely on some common language. This language is a protocol. There are different protocols for different jobs for instance we have: UDP, TCP, NTP, etc. And they have to be well defined, and understood by both parties. Protocols can be software or hardware based or a combination of both. The Wiki has lots of definitions of what a protocol is or is n ...
Forces?! What Forces? There are 4 forces that act on an aircraft: Lift: This is a force generated by the difference in the speed of air across the uper and lower wing surface. The modern lift equation states that lift is equal to the lift coefficient ( Cl ) times the density of the air ( r ) times half of the square of the velocity ( V ) times the wing area ( A ). L = .5ClrV2A Lift is a dynamic pressure as noted by Bernoulli's equation: P1 + ½ρv12 + ρgh1 = P2 + ½ρv22 + ...
Euler Angles are three angles introduced by Leonhard Euler (1776) to describe the orientation of a rigid body. To describe such an orientation in 3-Dimensional Euclidean Space three angles are required.   Euler Angles provide a way to represent the 3D orientation of an object using a combination of three rotations about different axes.   Body Axes Figure 1 – The Inertial Frame Figure 2 – Yaw rotation into the Vehicle Figure 3 – Yaw and Pitch Rotation Applied ...
Have you ever wondered how you navigate on a round world? Remember Columbus thought was flat. So if the world was flat you could stick two pins in the map, and follow the angle from North. But as we know today the world is round so, sadly that will not work… So we came up with Great Circle Navigation.  Apparently, the first reference to great circle navigation was by John Davis in his book, The Seaman’s Secrets (1594).  The theory was understood, but in practice it could ...
Well I will start not with the aircraft model but rather the state, or art of flight simulation:   Flight Dynamics Model This box does calculations on: The Aircrafts Frame of Reference which is a 3-D Cartesian (orthogonal right-handed) coordinate system (x, y, z),        which is centered (origin) at the rear of the aircraft. Where: ROLL-axis passes through the propeller and tail. (Positive to the nose) PITCH-axis passes though wing tip to wing tip. (Posit ...