[net.aviation] A review of two flight simulators

connors@drutx.UUCP (05/22/84)

[ Fly me. ]

	I have two flight simulators which I use with my Apple ][,

	"Airsim-3" from Mind Systems, and
	"Flight Simulator II" from Sublogic Corp.

	Both cost around $50. Here is a review of each.

	Flight Simulator II
	-------------------

		This is undoubtedly the more sophisticated
	of the two. It simulates a 180hp Piper Archer II.
	The display includes full instrumentation for VFR and
	IFR flight. This includes:

		airspeed indicator
		artificial horizon
		altimeter
		turn and slip indicator
		flap, trim, aileron, rudder, and elevator indicators
		magnetic compass
		non-slaved heading indicator (it precesses)
		vertical speed indicator
		communication radio
		2 navigation radios, connected to 2 VORS, and a glideslope
		ADF
		transponder
		DME
		outer, middle, and inner markers
		digital clock
		master switch
		left and right fuel gauges
		oil pressure and temperature gauges
		tachometer
		carburetor heat
		throttle indicator
		mixture control
		suction gauge

	This is all included on the lower half of the Apple display,
	which makes things a little compressed, and the definition
	a little fuzzy, especially with a color monitor or TV.

		The upper half of the display is a view from the plane
	in any of 9 different directions. The scenery includes
	representations of 4 differents areas of the U.S. -- New York/Boston,
	Los Angeles/San Diego, Chicago, and Seattle. There are lakes,
	oceans, roads, 80 different airports, tall buildings, hills
	and mountains. If you use a monochrome monitor, there is
	good definition, but a color monitor will let you see the
	green ground, blue sky, and dark lakes and roads. (The people
	who developed this software say they are working on databases
	for many more places. Maybe it'll let you fly over your
	own house!).

	But that's not all...

 		You can also set up your own weather --
		you can decide the season, the heights and
		wind directions for 3 levels, and the surface wind.

		You can set a percentage reliability for the plane.
		If it's less than 100% reliable, things will start to
		go wrong; the airspeed will stop working, or
		a radio will quit, etc. etc.

		In night flying the scenery changes to show the lights
		of towns below, together with taxiway and runway
		lights.

		There is a radar mode, with variable magnification,
		which lets you see where you are.

		There is an optional war-game (which in fact is
		self-contained, and is quite different in feel).

	So, there are an incredible numbers of options. How does
	it feel to fly?  Well, there are two ways to control
	the plane -- by the keyboard, or by a joystick. 

	The keyboard is obviously not a terribly realistic way
	to fly. But it does work. It requires that you know all the
	right keys to press, and at what RATE you have to press
	them.

	The joystick gives you a much finer feel for things,
	in fact a bit too fine. The plane responds very
	sensitively to joystick movements, and an attempt at
	level flight is apt to consist of continual banking
	from side to side. A small error in centering the
	joystick seems to rapidly build up into a dramatic
	bank. To level the wings after a turn seems to
	take ages. The software could do with more tuning here.

	The performance of the plane is quite similar to
	a real Piper Archer, even down to the way it stalls.

	The simulation is approximately real-time, but things
	happen faster if there is nothing difficult to draw
	on the display (e.g. if you are flying through clouds).

	There are bugs in the software, but none of them too serious.
	Sometimes the simulation will freeze, or an instrument
	display will get corrupted.

	Is it just like flying a real Piper Archer? No way!
	It's not nearly as exciting.

	But for $50, it's a bargain. It'll give you a very good
	idea of what real flying is like, and let you get
	familiar with a plane's instruments and methods
	of operation. 

	And it has one decided advantage:
	It will let you kill yourself many times over, in perfect safety.


	Airsim-3
	--------

	It is not clear what plane this simulation is based on, but
	it is certainly a more powerful plane than the Piper Archer,
	perhaps more like a Mooney 201.

	This is a reduced kind of simulator, but it has some
	definite attractions. It is instrumented with:
		altimeter
		airspeed indicator
		throttle indicator
		tachometer
		elevator, aileron, and flap indicators
		artificial horizon
		heading indicator
		vertical speed indicators
		2 VORS
		ADF
		glideslope
	The instruments are larger than in "Flight Simulator II",
	and are clear and easy to read. They occupy two
	sides of the screen, taking up about half of
	the screen area.

	The scenery is very basic, usually just the horizon,
	but occasionally the coastline, some isolated mountains,
	and 8 or so airports. It is based on the coastal area of California,
	from San Diego to San Francisco. Different IFR approaches
	are possible at these airports.

	There is also a radar mode, to let you see where you are
	in relation to airports and navigational facilities.

	The plane is very easy to fly with the joystick, and there
	is a cheat-key which lets you level the wings instantly.
	Because it is easier to fly, it lets you concentrate more
	on taking in the "big picture".

	If you really yank the controls around, you can get the
	plane in strange modes. I once had the power off, was
	spinning at about 180 degrees/sec, and CLIMBING!

	This simulator is very good for practising IFR, and would
	be a definite aid if you were going for an instrument ticket.
	One useful mode is to be able to rapidly move the plane around
	using the joystick, and observe the effect on the navigation
	instruments of having the plane in different physical
	locations.

	You can also set up your own ILS approach.
	

		Paul Connors.
		AGS Computers / AT&T Information Systems, Denver.

hobbit@bnl.UUCP (Al Walker) (06/01/84)

We here at Rutgers found a bug in a [bootleg] copy of Flight Simulator
[I forget if it was 1 or 2] wherein if you turned the plane upside down and
shoved the stick forward, you would rise at incredible rates with no
power.  The program evidently thought you were falling.... have they cleaned
this one up in your version?  It was a more fun way of gaining altitude than
hitting escape and typing in a new one...

_H*