Astra esa Regatta User manual

Operative Manual
1.1 - 3/2015
esa Regatta Watch

INDEX
pag. 2
Introduction page 3
esa Regatta Watch functionalities: initial procedure and main screens page 5
Main screens: navigation data, performance target, performance polar page 7
Main screens, starting procedure page 14
Other screens: setting page 17
Attachments 1- 4: file transfer from pc; new polar file data, file log, app upgrade page 19
pag. 2

Esa Regatta Watch is the first smartwatch with an application specifically designed for sail and regatta, able
to provide all the information on boat’s performances with a professional level, in a simple, direct and
completely automatic way right on your wrist.
esa provides the comparison of the actual performance respect to the target, provides all data for a winning start,
works as a repeater for the onboard instrumentation data, records navigation data al allows a further editing of them.
esa is an instrument useful at every level:
- for the beginners who wants to improve the basic setting of his sails, both in cruise and regatta;
- for the racers which searches for the best performances on his boat without renouncing to use a professional
Introduction: welcome in esa Regatta Watch (easy sailing assistance)
pag. 3
- for the racers which searches for the best performances on his boat without renouncing to use a professional
instrumentation that usually has much higher costs and complexity respect to esa.
Thankfully to the extreme portability is possible to access to all performance and navigation data of the boat in any
position onboard!
esa is connected to onboard instrumentation through Wi-Fi connection which transmits NMEA0183 data.
The following instruction will let also the beginners to use easily esa app
pag. 3

CAUTIONS
In order esa to work properly and to let work it at the maximum potential is important to have onboard
instrumentation calibrated.
For its own calculation esa imports from onboard instrumentation a series of essentials data that elaborates on its
own: Boat Speed (BS), Magnetic Heading (HDG), Apparent Wind Angle (AWA) and True Wind Angle (TWA).
We recommend to carefully read the instruction of yours navigation system and to perform the data calibration of those mentioned above
as written in their manual. Calibration values could change through time, is better to check them periodically to be ensured the onboard
instrumentation and consequently esa work properly.
It is better to learn the meaning of the abbreviations comparing in esa displays.
Initial Denomination Meaning
pag. 4
BS Boat speed Boat speed on water (knots)
Pol Boat speed polar Boat speed as polar (knots)
AWA Apparent Wind Angle Apparent wind angle(°) respect to the bow (+ from right; - from left)
AWS Apparent Wind Speed Apparent Wind Speed (Knots)
TWA True Wind Angle True Wind Angle (°) respect to the bow (+ from right; - from left)
TWS True Wind Speed True Wind Speed (Knots)
TWD True Wind Direction True Wind Direction respect to the magnetic North
%Boat Speed Perc. Boat Speed Percentage respect to the polar (target data)
HDG Heading Bow magnetic heading (°)
SOG Speed Over Ground Boat Speed over Ground (from GPS) (Knots)
COG Course Over Ground Boat course over ground (from GPS) (Knots)
OPP TACK Opposite Tack New bow Heading (HDG°) after a veer or shoot down, on TWA tgt course
BS tg Boat Speed Target Boat Speed Target for Bowline/Stern (Knots)
TWA tg True Wind Angle Target True Wind Angle Target for Bowline/Stern (°) (+ from right; - from left)

INITIAL SET UP PROCEDURE FOR THE APP
At THE FIRST BOOT of the app is useful to follow all the onscreen instructions.
In particular please remind to write with your reference email for esa Regatta Watch at the address displayed below, :
“[e-mail]”
By this, Astra will be able to freely send to you all esa upgrades via email through .apk files to be installed on your esa
Watch
pag. 5

1
22
11
33
esa is operative
44 55
IT’S EASY, FEW STEPS AND GO!
1. Select reference yard polar file
pag. 6
WARNING
If you want to restart esa (in particular after errors of data computation, with crash of the app), is recommended to press and hold “home” button, and swipe out the
app itself from the list. After this, it is possible to restart esa from zero.
The following presentation is for getting in the way of functioning of esa.
It’s recommended to use demo to practice in esa, with the help of this manual.
2. Press “Connect” button
3. Choose Between Wi-Fi or Demo (in case of Demo is sufficient press Start then)
4. In case of Wi-Fi, select ESA or NMEA, esa Watch o be previously connected with through
system settings of the smartwatch itself, see also pag 18
5. Press Start

4 MAIN SCREEN
1. Navigation Data visualization. It
is possible to select 2 data per
time, until 8 minor screen by
pressing on arrows on the side of
the screen (see pg 11)
2. Target Display: wind angle and and
boat speed for best WMG (bowline and
stern)
3. Target Speed indication for any wind
angle
pag. 7
the screen (see pg 11)
4. Starting Procedure: time and
distance from the starting line.
All different screen are reachable by swiping left or right the finger on the screen.

•Wi-Fi connection system able to connect with both NMEA0183 transmitting system and GAMP 0183 esa system
by Astra
•Target data constantly updated depending on wind intensity and angle (continuous interpolation)
Data collection of navigation and possible storage on your PC
Damping setting
Possibility to insert target data (polar) of the boat by putting them in the appropriate folder
Possibility to ask Astra Yacht s.r.l. specific analysis
esa Functionalities OTHER ASPECTS
pag. 8

Choice of files Polar reference
from which will be extracted the
value of the target boat speed (can
be one of those present by default
in esa or entered by the user)
Starting Screen: choiche of the reference polar
Wi-Fi signal strenght
pag. 9
in esa or entered by the user)
REFERENCE POLAR FILE:
• Select a file in storage
• A new polar can be inserted following the
appropriate procedure (see page 19-21)
pag. 9

It can be displayed 2 data per time, between 8 different combinations, selectable by pressing the arrows on the side of
the screen (left and right)
In addition to data obtained by boat’s instrumentation, there are those calculated by esa: BS tg, Opp Tack.
Main Screen: NAVIGATION DATA (1/2)
pag. 10
Couple of data display switchable by arrow press on the side of the screen
pag. 10