The flight model was designed and tuned to behave correctly within
the somewhat limited physics model of MSFS. To balance the flight model
so that it behaves correctly across the entire flight envelope, we spend
months and months tuning, tweaking and adjusting everything from engine
location to airfoil surface area, until we find a performance level
that matches the book. This takes thousands of hours (and hundreds of
cartons of cigarettes for Dr. Vaos).
If you move the engines away from the location at which we have
placed them, you affect MANY aspects of the performance of the airplane
- Fuel flow scalars
- Engine out moments
- Localizer tracking with engine out
- Cruise fuel flow performance
- Ground handling with not all engines running
When working within the confines of the rather limited MSFS phyisics
model, it is necessary to take some liberties in order to ensure that
performance in the end, comes out well balanced.
We recognize that some folks think that anyone can program addons
as complex as these but we assure you that it is much more difficult to
do exceptionally well than you might believe.
Please note that the EULA specifically forbids such alterations.
We do this not for legal reasons but because when someone posts "hacks"
to the existing airplane, we begin to get irate email to tech support
from folks who do not understand that by entering what appears to be a
"minor modification" they can throw the entire performance of the
airplane in the toilet.
Please do us the courtesy of not distributing this hack.