Flying Technology

Instrumentation & Avionics (Nov 10-13, 2015)

The following questions based on the knowledge of chapter 7

Pitot-static instruments

Airspeed and airspeed indicator

The altimeter and Altitudes

Gyroscopic instruments

Attitude indicator

Turn Coordinator

Heading indicator

1. Answer B is correct.

An ELT is an Emergency Locator Transmitter. ELTs are designed to automatically activate in the event of a crash and send out a signal that can be heard by SAR (Search and Rescue) personnel.

Modern ELTs operate on 406 MHz. These encode your aircraft's identification into the signal they send, and also encode your exact location if the ELT is coupled to an appropriate GPS. 406 MHz ELTs are monitored by orbiting satellites (global coverage) which are designed to alert appropriate SAR (search and rescue) personnel.

Older generation ELTs operate on 121.5 MHz. These do not encode an aircraft identification and also for other reasons have traditionally had a high false-alarm rate. While 121.5 MHz are still installed in many GA aircraft, it is recommended that operators switch to current generation ELTs.

In either case, the ELT is generally a brightly colored box (yellow, red, or orange, typically) mounted in your aircraft. One notable feature of ELTs is a switch to manually turn on the device in case of, for example, a forced landing in the wilderness that was not severe enough to activate the ELT but nevertheless requires search-and-rescue.

[pic 1]

2. Answer C is correct.

First, recognize that the Illustration 1 shows a VOR indicator with full left needle deflection and a TO indication. This is equivalent to

[pic 2]

Get in the habit of answering ALL of these VOR questions the same way. Learn the following system once and you can apply it for virtually all VOR questions.

Draw the VOR with north as up, and the four quadrants.