User manual

DodoSim 206 FSX User Manual

Page 22

3.3.3 Cockpit Buttons and Switches

In additional to the flight controls, the pilot interacts with four other control clusters when operating the

helicopter, these are:

3.3.3.1 The Front Panel

This contains all the gauges the pilot requires to monitor during starting, flight and shutting down.

The gauges shall be discussed later. For now, we shall concentrate on the switches and buttons;

1. Annunciator Test button - This momentary button is used to test the serviceability of all the

annunciator caution and warning lights. Providing electrical power is on and of sufficient

voltage and the caution light circuit breaker is in, whilst this button is depressed all

annunciator lights will illuminate, regardless of whether the relevant warning condition

exists at the current time or not.

2. Warning Horn Mute - This momentary button is used to silence either the low rotor RPM

horn or the “engine out” siren, if sounding.

The low rotor RPM horn sounds when rotor RPM is below 90% and the collective pitch

lever is above its low resting position. The “engine out” siren sounds when the engine is

not combusting or engine Gas Producer (N1) speed is below the self-sustaining limit of

58%

Either horn will not sound again until a causing factor is re-established or panel power is

cycled, i.e. once silenced, the engine out horn will not sound again until either the engine is

started and then quit, or electrical power to the circuit is switched off and then back on.

3. Turbine Over-Temp Test button - This momentary button tests the Turbine Over-Temp

light on the Exhaust Gas Temperature (EGT) gauge, (located just below the 900°C mark.)

It is important that a pilot knows whether the engine has been previously operated beyond

its acceptable temperature range. The light cannot be reset without a maintainer’s key. If

the pilot notes that the light is not ordinarily lit but illuminates when the test button is

pressed, he can be assured that both the warning light circuit is functional and that the

engine has previously remained within temperature limits.

Important note: The TOT light does not reset when the power is cycled. It can only be

reset by a service engineer. This requires either an engine service be performed via the

“Service helicopter” menu item, or for the “persistent data” file to be reset via the “Settings”

menu item.