I've tried out the recent c150 updates, and have observed the following
problems:

1) the speeds in the help file and on the specially crafted ASI seem
different from what the real Cessnas have. C150 was an inferior version to
a C152, with all the speeds lower, and same size tanks. Here's what a 1985
C152 book says:

108 rated BHP @ 2550 RPM
2x13gal tanks, 24.5 gal usable -- std tanks
2x19.5gal tanks, 37.5 gal usable -- long-range tanks

max gross ramp weight (taxi) 1675lbs
MGTOW: 1670
MG landing weight: same

wing loading: 10.5 lbs/sq.ft
power loading: 15.5 lbs/hp

Speeds:
        KCAS    KIAS
V_NE    145     149
V_NO    108     111
[EMAIL PROTECTED]:
 @1670  101     104
 @1500  96      98
 @1350  91      93
V_FE    87      85

Hence the ASI markings are: white arc 35-85 Green: 40-111 Yellow: 111-149
and the red line is 149KIAS.

If anybody has a c150 manual available, please pitch in. In any case,
the current speeds and tanks seem unrealistic.

2) whenever I ask to reposition the aircraft,
fgfs sometime freezes with the splashscreen on, and sometimes reports a
crash as follows:

Position for KSFO is (-122.383, 37.621)
  Crash: Attempted to fly under ground.
Playing audio after 500.867 sec: intense ground contact

(this is in response to a 'location on the ground' command, 28R @ KSFO)

Sometimes at the same time I also see the aircraft tumbling backwards and
having its tail going underground, controls held neutral, tailwind never
exceeding 7  knots. Could this be that the model doesn't account for the
pilot's weight?

3) in the cockpit view, I see strange speckles around the yokes, which
keep moving; you may get the idea by looking at a (still) image at
http://www.tarunz.org/~vassilii/Images/fg/c150-speckles.jpg

I'm running Debian Linux 2.6.8-2-686,
NVRM version: NVIDIA Linux x86 NVIDIA Kernel Module  1.0-7174  Tue Mar 22
06:44:39 PST 2005
GCC version:  gcc version 3.3.5 (Debian 1:3.3.5-13)
Model:           GeForce2 MX/MX 400
IRQ:             169
Video BIOS:      03.11.00.07.00
Card Type:       AGP

name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.3
server glx extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
    GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control
client glx vendor string: NVIDIA Corporation
client glx version string: 1.3

When I'm testing the CVS version, it uses the CVS simgear as well.
All the other packages (plib, openal etc) are debian ones.

V.


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