flying trial software / shareware for linux

Duck Old-timer said: "Listen, my Duck-brothers! Every autumn those people start hunting us... We are fed up with it! From now on well fly in helmets and flak jackets; well be armed to the teeth and have parachutes and jet accelerators... So, dear sirs, we will do hunting our way! These men will regret every single miss because our weapons wont spare them! Well make the hunt their worst nightmare..."
They threw down a challenge on us, man... Dont slip up - stand up and fight!
Lots of brand new features are waiting for you in this incredible arcade game.
* Check out tough game characters of the Jet Duck Air Force, which differ in rank and behavior:
Interceptors-privates are the most peaceful and vulnerable parts of the ducks Air Force community. They only protect themselves with the help of helmets and some use parachutes.
** Supersonic Fighters fly very fast - just like their name suggests. Those are the results of a recent invention from DuckSciLab - jet accelerator that was implanted to the ducks-volunteers.
** Destroyers-commandos will try to wound you with the paint that holds for some time on the screen and impedes to play. These are real pills! They are mean and cheeky. So, watch out!
** Aerobatic Aces... hm... they are not even worth mentioning:).
* A flexible scouring system was introduced - for shooting down the duck pilots you should come up with wining strategies for each duck character. The number or points you get fully depends on the character you shot and its flying speed.
In addition to traditional skills levels of Novice, Expert, and Master, the game has several game modes: Blitz, Sniper, Crossfire and CliKill.
This game is promised to become a treat for the fans of trendy cartoon graphics and classic arcade/shooter mix. So, charge your rifle and stand out against the... Jet Ducks!
Free to download and try.
The game requires Pentium II 300 or higher, 32 MB or more RAM, all major Linux flavors (RedHat, Mandrake etc.) to run.

X-Plane project is the worlds most comprehensive, powerful flight simulator, and has the most realistic flight model available for personal computers.
Welcome to the world of props, jets, single- and multi-engine airplanes, as well as gliders, helicopters and VTOLs such as the V-22 Osprey and AV8-B Harrier.
X-Plane comes with subsonic and supersonic flight dynamics, sporting aircraft from the Bell 206 Jet-Ranger helicopter and Cessna 172 light plane to the supersonic Concorde and Mach-3 XB-70 Valkyrie. X-Plane comes with about 40 aircraft spanning the aviation industry (and history), and several hundred more are freely downloadable from the internet.
X-Plane scenery is world-wide, with scenery for the entire planet Earth AND MARS! (thanks to the Mars Orbiting Laser Altimeter, which mapped that planets elevation) You can land at any of over 18,000 airports, as well as test your mettle on aircraft carriers, helipads on building tops, frigates that pitch and roll in the waves, and oil rigs.
Weather is variable from clear skies and high visibility to thunderstorms with controllable wind, wind shear, turbulence, and microbursts! Rain, snow and clouds are available for an instrument flying challenge, and thermals are available for the gliders! Real weather conditions can be downloaded from the internet, allowing you to fly in the actual weather that currently exists!
X-Plane also has detailed failure-modeling, with 35 systems that can be failed manually or randomly, when you least expect it! You can fail instruments, engines, flight controls, and landing gear at any moment.
While X-Plane is the worlds most COMPREHENSIVE flight sim, your purchase also comes with Plane-Maker (to create your own airplanes) World-Maker (to create your own scenery), and Weather Briefer (to get a weather briefing before the flight if you use real weather conditions downloaded from the net).
X-Plane is also extremely customizable, allowing you to easily create textures, sounds, and instrument panels for your own airplanes that you design or the planes that come with the sim.
X-Planes accuracy (in flight model), scope (in aircraft and terrain coverage), versatility (in aircraft type and weather conditions), add-on programs (in aircraft and scenery editors), user-customizability, downloadable aircraft, and downloadable scenery makes it the ULTIMATE flight simulation experience for Macintosh AND Windows platforms.
X-Planes flight model can handle flying wings and fly-by-wire systems, as needed for a B-2 simulation.
How it Works:
1: Element Break-Down
Done only once during initialization, X-Plane breaks the wing(s), horizontal stabilizer, vertical stabilizer(s), and propeller(s) (if equipped) down into a finite number of elements. The number of elements is decided by the user in Plane-Maker. Ten elements per side per wing or stabilizer is the maximum, and studies have shown that this provides roll rates and accelerations that are very close to the values that would be found with a much larger number of elements.
2: Velocity Determination
This is done twice per cycle. The aircraft linear and angular velocities, along with the longitudinal, lateral, and vertical arms of each element are considered to find the velocity vector of each element. Downwash, propwash, and induced angle of attack from lift-augmentation devices are all considered when finding the velocity vector of each element.
Propwash is found by looking at the area of each propeller disk, and the thrust of each propeller. Using local air density, X-Plane determines the propwash required for momentum to be conserved.
Downwash is found by looking at the aspect ratio, taper ratio, and sweep of the wing, and the horizontal and vertical distance of the "washed surface" (normally the horizontal stabilizer) from the "washing surface" (normally the wing), and then going to an empirical look-up table to get the degrees of downwash generated per coefficient of lift.
3: Coefficient Determination
The airfoil data entered in Part-Maker is 2-dimensional, so X-Plane applies finite wing lift-slope reduction, finite-wing CLmax reduction, finite-wing induced drag, and finite-wing moment reduction appropriate to the aspect ratio, taper ratio, and sweep of the wing, horizontal stabilizer, vertical stabilizer, or propeller blade in question. Compressible flow effects are considered using Prandtl-Glauert, but transonic effects are not simulated other than an empirical mach-divergent drag increase. In supersonic flight, the airfoil is considered to be a diamond shape with the appropriate thickness ratio... pressures behind the shock waves are found on each of the plates in the diamond-shaped airfoil and summed to give the total pressures on the foil element.
4: Force Build-Up
Using the coefficients just determined in step 3, areas determined during step 1, and dynamic pressures (determined separately for each element based on aircraft speed, altitude, temperature, propwash and wing sweep), the forces are found and summed for the entire aircraft. Forces are then divided by the aircraft mass for linear accelerations, and moments of inertia for angular accelerations.
5: Get Back to Work
Go back to step 2 and do the whole thing over again at least 15 times per second. Arent computers great?
Version restrictions:
- If you do NOT have an X-Plane 8.00 DVD, these downloads act as a demo... they will stop the joystick after 6 minutes.

Vendetta Online is a MMORPG (massively multiplayer online role-playing game) from Guild Software Inc. In this game, thousands of people can play together, at the same time, in a single, persistent universe. Players take the form of spaceship pilots within this universe, flying to and fro between space stations and other locations in the galaxy. All combat within the game is fully realtime, based entirely on "twitch" skill (no "virtual dice rolling"). Players may fight one another, fight NPCs, participate in groups, and even engage in large-scale Guild combat.

As pilots in the Vendetta universe, the progression of the players character is up to each individual. The starting Nation affiliation gives the player certain benefits and liabilities that fit the particular culture of that Nation, but this merely serves as a starting point for the character. If the user wishes to be a peaceful trader, military pilot, guard for hire, dastardly pirate, or whatever the player imagines, this is all up to the behaviour and play style of the user. There are both lawful and lawless places in the universe, and many different factions (including a pirate faction) with differing motives and shifting alignments. The universe is never a completely "safe" place, but lawful authorities do not take kindly to combat within their populated areas, making those places safer than most. More lawless regions may prove more dangerous, but potentially yield lucrative possibilities for those who align themselves with the darker underbelly of society. The life of a criminal is difficult, however, and pirates are not well-loved in most of the populated galaxy.

Character progression takes place in the form of a variety of skills and other attributes, any combination of which can potentially open up new gameplay content (missions, ships, equipment, trade items, etc). General activity related to a skill can increase it (trading can increase the Commerce skill, etc), but taking on missions will generally increase skills that much faster. Missions are offered by particular factions, with mission difficulty and availability increasing as the character becomes better known to the faction. Rising in the esteem of a given faction can itself yield better item prices, a wider item selection, and access to unusual "special" equipment available only to those who have proven themselves worthy. It is possible to win many types of accolades and commendations from particular factions, all of which can help demonstrate the characters accomplishments. These and other character stats may be viewed by other users in a Character Information panel.

The ships themselves are highly customizable, with various different designs and addon modules making possible a wide range of equipment loadouts. In addition, users may configure the color of their individual craft. Various types of ships are specifically suited to a particular task (such as combat or trading), while others prove more flexible, depending on how they are configured by the pilot.

Vendetta Online launched in North America in late 2004. Since then, continuous full-time development has pushed the game still further, towards the intended goal of "version 2.0" in 2007. Patches, upgrades and releases are usually seen on a weekly basis, the game ever-increasing in complexity as Guild Software gets closer to their next milestone. Since 2006, the userbase has also been helping out, creating new content via the Player Contribution Corps toolset, allowing the development of new missions and other features. The level of developer-userbase interaction is often considered one of the unique aspects of VO, with the core dev team posting and replying daily on the messageboard, and user-requested features often appearing in-game in a matter of days or weeks.

"Every autumn people start hunting us... We are fed up with it! From now on well be armed to the teeth and have parachutes and jet accelerators... So, dear sirs, well do hunting our way! These men will regret every single miss because our weapons wont spare them!
Well make the hunt their worst nightmare..." Want to know more? Are you tough enough to stand out against the Jet Ducks? Then download this game and charge your rifle! On Linux now!
Game Rules
There are four types of the ducks in Air Force - Interceptors-privates,
Supersonic Fighters, Destroyers-commandos, and Aerobatic Aces.
Interceptors-privates are the most peaceful and vulnerable parts of
the ducks Air Force community. They only protect themselves with the
help of helmets and some use parachutes. When you hit them, they sadly
land on the lake surface covering their eyes full of tears.
Supersonic Fighters fly very fast - just like their name suggests. Those
are the results of a recent invention from DuckSciLab - jet accelerator
that was implanted to the ducks-volunteers. These wont do you any harm
except distracting your attention from their armed friends.
Destroyers-commandos will try to wound you with the paint that holds for
some time on the screen and impedes to play. These are real pills! They
are mean and cheeky. They took lessons from a famous sniper. So, watch
out!
Aerobatic Acess they are not even worth mentioning. Those are just
some spoilt creatures that do not deserve being called ducks at all.
Have you ever seen a bird flying in zigzags? Now you will...They are real
aces, though...
For shooting down the duck pilots you should come up with wining strategies
for each duck character. The number or points you get fully depends on the
character you shot and its flying speed.
Thus, for killing Interceptors-privates you can get 5, 10, or 15 points.
For a Supersonic Fighter you are able to receive 100, 150, or 200 points,
and for a Destroyer-commando - 250, 300, or even 350.
Aerobatic Aces shot down will bring you 50, 75, or 100 points.
The higher the skill level is, the faster the ducks fly and the smaller
the radius of hit is. That means that you need to shoot faster and more
directly.
In addition to traditional skills levels of Novice, Expert, and Master,
the game has several game modes:
- Blitz - this is a time-limited game. Here you should shoot as many ducks
as you can for a limited time that you can set yourself.
- Sniper - you have a limited number of cartridges in this game (you choose
20, 50, or 200 ammo). Thus, its better not to miss and shoot only when you
are 100% sure you will kill the duck.
- Crossfire - this is a time-limited game without the shooting ducks. Feel
free to let all your rage and fury out. Shootem all! Though, dont forget
to re-charge your rifle.
- CliKill - a time-limited game. Instead of the gun you should use the sight that can be moved all around the playing field. Note that the playing field
is not limited by the game screen. The sight allows aiming more easily. Let
the steam off!
If you use joystick, the buttons of recharging and shooting coincide: if you have no ammo and you push shooting button, your rifle will be recharged.
For those who prefer stylus: the farther from the front sight of your rifle
you click, the faster the rifle moves to the appropriate side. Moreover,
there is a virtual joystick (with side movements buttons and shooting button).
If you put the stylus on ammo, the rifle will be re-charged.
Enhancements:
- 4 game modes and tons of different strategies
- Several skill levels
- Cartoon style graphics and smooth flying
- International online Tournament

EMP Enterprise Anti spam Filter installs easily on your server and stops the deluge of spam. Imagine your day without pornography, stock solicitations, pills, email-borne viruses and other objectionable content.
Spammers are now building and using tools that munge (or cloak) the text of UCE messages, making it impossible for most spam blockers to detect the trigger words they depend upon to identify the message as spam.
The majority of anti-spam software (with the exception of EMP) currently on the market, use keyword or trigger-word lists to identify and filter undesirable messages. By munging the text and hiding the existence of these keywords, spam passes through keyword filters undetected.
Extensible Messaging Platform uses contextual pattern signatures (not simple word/phrase lists) and will identify and stop spam which has been cloaked in this manner.
EMP 6 is not fooled by these cloaking techniques. In fact, because of EMPs use of pattern signatures to detect spam, EMP actually zeros in and identifies the unique patterns these techniques generate, to stop spam cold. So, the more spammers depend upon these techniques to hide spam from our competition, the more easily EMP identifies the email as spam.
Main features:
Infrastructure
- Cross platform protection - built on Suns Java 5 Server JVM
- Stress tested at high message throughput levels
- System resource-friendly operation
- Integrated J2EE compliant JSP web server.
- Integrated high-performance SQL database engine
- myEMP user interface easily embeds within Microsoft Outlook, while still providing complete safety, by maintaining true quarantined message isolation.
Filtering
- Rejects messages immediately from known spammers, virus compromised Windows clients, low-flying spam, relay attempts, heuristics failure, spammer baiting address...
- Pattern based filtering - demonstrably superior to the outdated keyword/bayesian paradigm
- Multi-stage waterfall screening
- Complete customer access to CPE2 pattern engine
- Designate unique message disposition per pattern (quarantine,reroute,delete,reject,markAsSpam)
Quarantine
- Simultaneous admin + end-user quarantined message processing
- True protective quarantined message isolation
Whitelisting
- Unique pattern-driven contextual white listing by administrators
- End-user personal "friends & family" whitelisting
Reporting
- Performance analysis charts & graphs
Version restrictions:
- 14-day trial