OTS

Question 1

OTS

Answer 1

Most significant route structure within North Atlantic (NAT) MNPS airspace

Regulates the traffic flow east and west bound

Question 2

MNPS

Answer 2

Min nav performance specifications

Question 3

MNPS airspace extends from and max and min FL

Answer 3

Extends from FL285 to FL420

Max cruise levels = FL290 to FL410

Extends from 27* to 90*N

Question 4

Operator guidance on MNPS can be found in

Answer 4

North Atlantic operation and airspace manual (NAT doc 007)

Question 5

MNPS airspace control areas

Answer 5

Reykjavik 
Shanwick 
Ganda 
Santa Maria 
New York 

Class A airspace above FL55 - lowest FL = 60

Question 6

A/c system req for MNPS

Answer 6

2 serviceable LRNs 
An IRS
An INS 
A GNSS 
An accurate time piece 

Special routes have been setup for a/c that do not fit the req

Question 7

OTS 2 major alternating flows and peak times

Answer 7

Westbound departing Europe in the morning - peaking between 11 30 and 1900

Eastbound flow departing N america in the evening peaking between 0100 and 0800

Question 8

Westbound - most northerly route

Answer 8

Route A

Question 9

How is shanwick different to the others

Answer 9

Req a clearance - can’t enter without it

Others you can enter but must remain at the FL given in your domestic clearance

Question 10

Most southerly route going east

Answer 10

Route Z

Question 11

How is the OTS constructed - callobrative decision making

Answer 11

Info from the operators is sent to the oceanic control centre (OACs) - PRM = preferred route message

Proposed tracks are then published on an internet site for discussion - 1hr to discuss proposal

The agreed OTS is published on the NAT track message using AFTN

Question 12

Time limit for operators to submit their desired tracks

Answer 12

No later than 19.00 for the following daytime

10.00 for the following nighttime

Question 13

NAT track message is usually published

Answer 13

At 22.00 and 14.00

Gives full details of the tracks and FL to be used

Question 14

Hours of validity of the OTS

Answer 14

Daytime = 11.30 to 19.00 at 30*W

Nighttime = 01.00 to 08.00 at 30*W

Question 15

Tango routes and LRN req

Answer 15

Between Northern Europe and Spain, canaries and lisbon

Tango 9 = 1 LRN

Tango 213 = 2 LRN

Question 16

NARS

Answer 16

North American routes

Predetermined routes which join North Atlantic oceanic and North American domestic airspace - link major American airports

Question 17

Canadian domestic track system - 3 track systems

Answer 17

Northern control area tracks (NCAs)

Southern control area tracks (SCAs)

Northern organised track system (NOROTS)

Provides links between Europe and central and western parts of North America

Question 18

WATRS

Answer 18

West Atlantic route system

Network of routes linking USA and Canada with Bermuda, Bahamas and the Caribbean

Operate in the New York oceanic control area

Question 19

NERS

Answer 19

North Atlantic European route system

Routes between NAT oceanic and European domestic airspace

Question 20

SOTA/NOTA/GOTA/BOTA

Answer 20

Transition areas - dedicate airspace to get your levels from domestic clearance to oceanic clearances

SOTA = Shannon 
NOTA = northern 
BOTA = Brest 
GOTA = gander