Aircrew/Flightcrew Training

Shearwater Aviation has experience of designing and auditing flying training courses to meet the demands of the UK Civil & Military. This priceless experience can be yours at affordable prices.

• Conduct Radar Homing
• Operate Countermeasures
• Conduct Missile Firing
• Carry out winching operations
• Conduct fighter evasion
  

Task Analysis & Training Design

Principles of an altimeter
An altimeter consists of a corrugated metal capsule that is partially evacuated and sealed. It is prevented from collapsing completely either by its own rigidity or the use of a leaf spring. Static pressure is fed into the case containing the capsule from the aircraft’s static vent. When the aircraft climbs, the static pressure inside the case decreases (when the aircraft descends it increases), thus allowing the spring to pull the capsule faces apart.

Pressure Altimeter Errors
Instrument error - impurities in manufacturing
Pressure error- positioning on airframe
Barometric errors- variation in pressure from the ICAO ISA
Temperature error- density of the air against ICAO ISA
Lag error- delay in response to atmospheric changes
Hysterisis error- imperfect properties following climb or descent
Blockage or leakage- blocked tubes (ice/foreign objects)

Altimeter setting

The altimeter is fitted with a sub-scale setting knob, which the pilot uses to select the appropriate pressure, be it QNH, QFE, SAS or RPS.