Download booklet in
English [10 MB], or a little older version in
Portuguese [7 MB] language. Both are in the pdf format. Pre-release
User's Manual is also available in English [1.8 MB]. Plese note that
the manual is slightly behind the current software.
You may also want to download the cutouts for
version - both in pdf format. You can also get the 3D model of Nesis in
STEP format. (Hint: Use right mouse button and select the Save link
and 6.5" version.
booklet - a new system for the aerophotography is also available for
download [7 MB]. More info on
Table of Contents
Basic Nesis Panels
Charts and Flight Planning
1. Screenshoots -
Basic Nesis Panels
Nesis uses three basic panels to organize the
information for the pilot: flight instruments panel, navigation panel
and engine instruments panel.
Hint: Click on the picture to
see the true size image.
|Basic flight instruments in a
combination of classic and modern form: airspeed, altitude,
vario, RPM with manifold pressure, artificial horizon, moving
map and HSI, engine status panel and fuel computer panel. All
these instruments together provide essential information that
pilot needs most of the time during the flight.
|Large navigation panel provides
complete navigation information with heading up moving map,
airspaces, vertical airpace cross-section, 5 and 10 min
prediction points. It also displays numeric information about
current waypoint and route situation like: bearing, tracking,
distance, ETA, cross-track error, ... on the bottom bar. The top
bar reveals wind, true airspeed, GPS status and local time.
||This panel is dedicated to the engine
instruments. All the instruments can be fully configured via a
XML file for almost any aircraft. The scales may be displayed in
different units (imperial, metric). The picture shows
instruments optimized for Rotax 912.
|The modern look of the artificial
horizon combined with the engine instruments and some flight
||The menu panel is simply accessible and
easy to use. Just select the icon and press the OK
2. AHRS Background
The AHRS in the Nesis is a descendant of the
Senap autopilot. In
fact, Senap electronics was modified for the Nesis instrument. Below are
the key features of the system.
- UAV navigation principles are applied -
inertial navigation serves as basis navigation which is aided by GPS
data. The integration of both worlds is obtained by using Kalman
- Solid state sensors: 3 axis MEMS
accelerometers and angular rates, 3 axis magnetometer, pressures
sensors, temperature sensors are used in inertial navigation. The
sensor reading is performed at 100 Hz, while attitude and position
is calculated at 40 Hz.
- 12 channel GPS aids the inertial navigation
unit when the GPS signal is available. Although GPS is not the main
source of the navigation it is essential for calibration of inertial
- Loss of the GPS signal is tolerated for
several minutes without loss of the situation awareness. The
inertial navigation does not need GPS signal to calculate current
position but it uses GPS merely to compare inertial and GPS solution.
In general, the GPS gives better long term position prediction,
while inertial navigation gives better short term position
prediction. In the case of bad GPS signal, the accumulation of short
term prediction errors is still within reasonable limits for several
minutes. Once the GPS signal is back, both solutions are merged into
- World wide magnetic field declination and
inclination model is built into the system in a seamless way. The
magnetic declination and inclination is updated automatically.
- Gyro-stabilized magnetic compass. Basic
heading information is obtained from integration of the angular rate
sensors, which is compared with the magnetic heading solution from
the 3-axis magnetometer.
- Rigorous calibration over all temperature
range. The bad side of solid state sensors is their sensitivity
towards temperature change. Therefore, special care is taken in the
sensor calibration process, where each sensor is calibrated over its
all range at different temperatures.
- Excellent wind model. No tips and tricks
are needed to get correct wind data. Since the wind is used as a
state variable in the Kalman filter, the results of wind strength
and direction are obtained directly from the filter in a similar
manner as attitude and position.
3. Moving Map,
Charts and Flight Planning
Copyright © Kanardia d.o.o. 2008, 2009
- World wide chart coverage is based on vmap0
(vector) and SRTM (raster) data. Both data formats are combined in
Kanardia's kam format. The kam format follows the idea of
KFLog format and divides the world
into 1º by 1º coordinate blocks - one file for one block.
- Instantaneous change of zoom levels is
obtained using background chart calculation. On the instrument
startup, it takes just a few seconds to calculate the first chart
and less than one minute to calculate other parallel charts. Once
charts are calculated the zoom request is handled in almost no time.
- Nesis has build in support for welt2000,
SUA and openair formats for airfields, turnpoints
- Number of airfields, navpoints, waypoints
and airspaces is practically unlimited. It is limited only by free
space on the on-board computer flash memory.
- Each map can be enhanced with the big HSI
(horizontal situation indication) rose, vertical airspace
distribution, 5 min and 10 min position prediction, wind situation
and direct to waypoint situation. All this information in one screen
is all the pilot needs in most cases.
Click here to see a sample image with the large HSI.