matsis
12-16-2001, 04:03 PM
Understandably, single engine piston craft will roll much faster in the
direction of the prop rotation than it will counter to that rotation. Single
engine jet craft can possibly behave the same way. However, multi engine
aircraft should not experience this phenomenon. Personally, I have not
observed FS98 to discriminate between characteristics. If anyone could offer a
fix for this, please share.
Thanks a lot
-J. Baden
Hi Joel,
single engine jet aircraft do not have any trouble with torque effects as the
airflow through them is completely balanced.
Single prop aircraft (no matter if turboprop or piston engined) will rotate
faster in the direction OPPOSITE prop rotation (acc. to the principle actio =
reactio).
Multi engine propeller aircraft however will have the same or at least very
similar torque effects to deal with as long as all props rotate in the same
direction. Only a few light twins offer counter-rotating props to compensate
for this. These few exceptions are those that FS98 would have trouble with
simulating properly.
Almost all turboprop aircraft for FS98 are based on jet models so they do not
properly display the adverse effects of their props (even the default King Air
350 in FS2000 is still just a jet model without props). Only exceptions to my
knowledge are some YS11 models by Shoichiro Homma and my Dornier 128-6
turboprop simulation contained in files do1286V1.zip and do1286V2.zip.
I hope that answers your question to a certain degree...
You can tinker with some of these prop characteristics by editing the *.air
files of prop aircraft which you think overdo it somewhat (particularly very
powerful prop aircraft tend to be badly modeled), but these values must be
handeled with care as they can render a great airplane model completely useless
with great ease ;-)
Regards, Matt
direction of the prop rotation than it will counter to that rotation. Single
engine jet craft can possibly behave the same way. However, multi engine
aircraft should not experience this phenomenon. Personally, I have not
observed FS98 to discriminate between characteristics. If anyone could offer a
fix for this, please share.
Thanks a lot
-J. Baden
Hi Joel,
single engine jet aircraft do not have any trouble with torque effects as the
airflow through them is completely balanced.
Single prop aircraft (no matter if turboprop or piston engined) will rotate
faster in the direction OPPOSITE prop rotation (acc. to the principle actio =
reactio).
Multi engine propeller aircraft however will have the same or at least very
similar torque effects to deal with as long as all props rotate in the same
direction. Only a few light twins offer counter-rotating props to compensate
for this. These few exceptions are those that FS98 would have trouble with
simulating properly.
Almost all turboprop aircraft for FS98 are based on jet models so they do not
properly display the adverse effects of their props (even the default King Air
350 in FS2000 is still just a jet model without props). Only exceptions to my
knowledge are some YS11 models by Shoichiro Homma and my Dornier 128-6
turboprop simulation contained in files do1286V1.zip and do1286V2.zip.
I hope that answers your question to a certain degree...
You can tinker with some of these prop characteristics by editing the *.air
files of prop aircraft which you think overdo it somewhat (particularly very
powerful prop aircraft tend to be badly modeled), but these values must be
handeled with care as they can render a great airplane model completely useless
with great ease ;-)
Regards, Matt