A,B,C or D SIMULATOR

Me2005 · Post by **Me2005** » Sun Nov 20, 2005 9:15 pm

There is a question in Jazz application that asks about the SIMULATOR experience. They ask if you ever did A,B,C or D simulator. As most of you the only one I did is basic IFR Simulator that is not moving...
Which class is that one?
And can you define please A,B,C or D simulators please

oldtimer · Post by **oldtimer** » Sun Nov 20, 2005 9:33 pm

A Flight Training Device. A sim is airplane specific. Sims vary according to the level of visuals, motion and how closely they represent the actual airplane. Level D is the highest and represents the aircraft faithfully with full motion and daylight visuals. Usually a level B sim is the minimum required for type specific training. Represents the airplane faithfully as far as reaction to various systems are concerned but visuals are night time and usually only out the front windshield, making a circle to land impossible. As an example, when the engine in a Gulfstream quits, there is so much inertia in that big old RR Dart engine that as the propeller autofeathers, extra thrust is momentarily developed so the initial movement of the nose is towards the OPERATING engine instaed of towards the failing engine and if the pilot does not catch that, directional control could be compromised. A Level B sim will reproduce that quite faithfully but taxiinig , take-off and landing "feel" is not quite there. Most have accurate visuals and sound. Level D sims are the very latest and best. Full initial training can be done in level C and D sims and your first flight will be in the airplane with people in the back. If your Ops Manual allows it.

Schooner69 · Post by **Schooner69** » Sun Nov 20, 2005 9:34 pm

Googled and found the following for Level C and D: I think that A and B are probably sims without visuals and/or motion.

Level C systems support basic transition and upgrade training under night / twilight conditions. Because the human visual system is more tolerant of flicker effects, at low light levels, Level C systems can be operated at a low field rate (typically 30 Hz). Lower field rates translate into lower system costs.

Level D systems target total training with daylight operation at high brightness levels and a more comprehensive set of weather and illusion effects. Most systems are designed to performance levels beyond certification levels e.g, increased vertical field of view, cross cockpit viewing, increased scene content, texture effects, etc

Training in level D sims usually results in a "no aircraft time" rating.

I think.... (;>0)

John

cyyz · Post by **cyyz** » Sun Nov 20, 2005 11:04 pm

I like the b's, but I mean if you're drunk a DD will always be the best bet...

desksgo · Post by **desksgo** » Mon Nov 21, 2005 6:48 am

Schooner69 wrote:Googled and found the following for Level C and D: I think that A and B are probably sims without visuals and/or motion.

Hey John, certainly a valiant effort, but you earn an F for that.
There's an extremely long grocery list of the differences in the various sims, but since my time is so very precious, here's some of the main things:

Level A simulators contain 3 degrees of freedom in their motion
Level B simulators contain 4 degrees of freedom in their motion

The level A sims only require a basic representation of ground operations/handling adequate for turns on the runway and adquate control of the landing roll. They do not require a high level of fidelity in approach/landing scenarios, visual, and movement cues. So what it comes down to is fidelity. The visual system, motion system, sound system, aircraft handling all take leaps forward as you approach the C/D level.

There's a more specific list (which is about as chunky as War and Peace), but for the best answer, see OLDTIMER's response.

Warm Regards,

DG