ALTIMETER SETTING PROCEDURE

ENR 1.7 ALTIMETER SETTING PROCEDURE

1 Introduction

The altimeter setting procedures in use generally conform to those contained in ICAO Doc 8168, Vol. I, Part 6 and are given in full below.

QNH reports and temperature information for use in determining adequate terrain clearance are provided in MET broadcasts and are available on request from the ATS units. QNH values are given in hectopascals.

2 Basic Altimeter Setting Procedures

2.1 General

2.1.1 The transition altitude for all aerodromes in Estonia is 5000 ft (1500 m) MSL.

2.1.2 The transition level is based on the local actual QNH value and is determined by the appropriate ATS unit.

2.1.3 Flight level zero is located at the atmospheric pressure level of 1013.25 hPa. Consecutive flight levels are separated by a pressure interval corresponding to 500 ft (152.4 m) in the standard atmosphere.

2.2 Take-Off and Climb

2.2.1 A QNH altimeter setting is made available to aircraft in start up clearance or before taxiing, except if the pilot of the aircraft has reported getting valid QNH from ATIS.

2.2.2 Vertical positioning of aircraft during climb is expressed in terms of altitudes until reaching the transition altitude (including).

2.3 Cross-Country Flight

2.3.1 When flying in the vicinity of aerodrome or at or below transition altitude (TA) in terminal control area, vertical position of the aircraft is given as altitude.When flying at or above transition level (TRL), vertical position of the aircraft is given as flight level (FL).

2.3.2 When flying below lowest usable flight level (LUF) in cross country flight, the vertical position of the aircraft is given as altitude.
When flying at or above lowest usable flight level (LUF), the position of the aircraft is given as flight levels (FL).

Note: Lowest usable flight level (LUF) is used in uncontrolled airspace, where it is determined by the flight crew taking into concern valid or forecast of QNH and
temperature.

2.3.3 In uncontrolled airspace aircraft shall be flown at altitudes or flight levels as applicable corresponding to the magnetic tracks shown in the table para. 5.

2.3.4 Flights planned to operate within airspace class C shall file in a flight plan that is conducted at flight levels appropriate to the track as specified in column “IFR flights” of the table para. 5 of cruising levels.

2.3.5 The correlation between flightlevel and track shall not apply, when otherwise indicated in ATC unit clearance.

2.4 Approach and Landing

2.4.1 Vertical position of aircraft during approach is expressed in terms of flight levels until reaching transition level (including).

2.4.2 A QNH altimeter setting for IFR flight is made available with clearance that takes the aircraft below transition level and with approach clearance.

2.4.3 The transition level (TRL), if it is not included or differs from ATIS broadcast, shall be transmitted to IFR flight with QNH. The transition level shall be acknowledged by read-back.

2.4.4 Altimeter QNH setting shall be transmitted to VFR flight with the clearance to join traffic circuit (at the latest).

2.4.5 QFE altimeter setting is available on demand only.

2.5 Missed Approach

2.5.1 The relevant portions of para. 2.2 and 2.4 shall be applied in the event of a missed approach.

3 Description of Altimeter Setting Region

There are no altimeter setting regions in Estonia.

4 Procedures Applicable to Operators (Including Pilots)

4.1 Flight Planning

The levels at which a flight is to be conducted shall be specified in a flight plan:

in terms of flight levels if the flight shall be conducted at or above 6000 ft MSL, and
in terms of altitudes if the flight shall be conducted at or below 6000 ft MSL.

5 Table of Cruising Levels

The cruising levels to be observed are as follows:

MAGNETIC TRACK
From 000° to 179°						From 180° to 359°
IFR			VFR			IFR			VFR
	Altitude			Altitude			Altitude			Altitude
FL	m	ft	FL	m	ft	FL	m	ft	FL	m	ft
10	300	1 000				20	600	2 000
30	900	3 000	35	1 050	3 500	40	1 200	4 000	45	1 350	4 500
50	1 500	5 000	55	1 700	5 500	60	1 850	6 000	65	2 000	6 500
70	2 150	7 000	75	2 300	7 500	80	2 450	8 000	85	2 600	8 500
90	2 750	9 000	95	2 900	9 500	100	3 050	10 000	105	3 200	10 500
110	3 350	11 000	115	3 500	11 500	120	3 650	12 000	125	3 800	12 500
130	3 950	13 000	135	4 100	13 500	140	4 250	14 000	145	4 400	14 500
150	4 550	15 000	155	4 700	15 500	160	4 900	16 000	165	5 050	16 500
170	5 200	17 000	175	5 350	17 500	180	5 500	18 000	185	5 650	18 500
190	5 800	19 000	195	5 950	19 500	200	6 100	20 000	205	6 250	20 500
210	6 400	21 000	215	6 550	21 500	220	6 700	22 000	225	6 850	22 500
230	7 000	23 000	235	7 150	23 500	240	7 300	24 000	245	7 450	24 500
250	7 600	25 000	255	7 750	25 500	260	7 900	26 000	265	8 100	26 500
270	8 250	27 000	275	8 400	27 500	280	8 550	28 000	285	8 700	28 500
290	8 850	29 000				300	9 150	30 000
310	9 450	31 000				320	9 750	32 000
330	10 050	33 000				340	10 350	34 000
350	10 650	35 000				360	10 950	36 000
370	11 300	37 000				380	11 600	38 000
390	11 900	39 000				400	12 200	40 000
410	12 500	41 000				430	13 100	43 000
450	13 700	45 000				470	14 350	47 000
490	14 950	49 000				510	15 550	51 000
etc	etc	etc				etc	etc	etc

Note: Guidance material relating to vertical separation is contained in the Manual on Implementation of a 300 m (1000 ft) Vertical Separation Minimum Between FL 290 and FL 410 Inclusive (Doc 9574).