Msfs Beech 18

[Germain Aguilera]

Thismod has some advanced systems like oil system and others that require very precise knowledge. You have to read the manual in order to flight with this mod. Give special attention to oil system and startup procedures.

Oil quantity (Persistent between flights).

Oil comsumption.

Oil leaks.

Oil temperatures and pressure that not only derive from engine calculation but also influence engine operation.

Oil tanks placed on their real location that influence flight model according to their load.

-New advanced [FUEL SYSTEM] replacing old [FUEL]:

New tanks usage logic

Minimum fuel pressure logic (see guide).

New booster pumps logic (see guide).

Fuel system pipes modeled with residual fuel quantity.

New Cross-feed modeled.

Fuel consumption adjusted to more correct numbers.

-Persistent engine wear with the ability to view and reset it in the cockpit

-New flight model with both air and ground handling.

-Aircraft performance tuned to much more realistic numbers

-Underthehood engine code with damage and wear associated.

-New systems modeled like oil shutters, oil bypass, cabin heat, etc.

Flight model:

-Much more progressive yoke response.

-Takeoffs: More stable behaviour during the runway roll. The tail wheel, if locked, holds the aircraft heading much better. While the tale is on the ground, it requires the use of differential brakes or differential throttle as described in the real manual and as reported by real Beech pilots.The tail lifts at around 40 kn as real plane and in a much more gentle way. Once tail is up, rudders get much more authority, like real plane.

-Gliding speeds and stall speeds adjusted to real values according to Beech18 Flight Handbook.

-Tuned stall behaviour that is very well described in Beech18 Flight Handbook.

-Many other small details that make each aircraft unique, such as "spongy" controls at low speed or adverse yaw.

-The landing gear behaviour has been completely revised, eliminating the bouncy characteristic.

-Cowl flaps and landing lights have drag. Cowl flaps open reduces IAS by 5 to 8 kn according to pilot reports. Landing lights is much less, probably less than 1 kn but drag is there nevertheless.

-Gliding performance adjusted to match Beech18 Flight Handbook data.

Performance:

-Where default plane engine power is off sometimes by more than 100 HP to real values depending on situation, my engine is always within 10 to 15 HP to real engine data. This is at all manifold and RPMs combinations and all altitudes.

-Landing and takeoff distances also much closer to real performance charts. Tested at different altitudes.

-Engine overboost at low altitudes modeled. Despite this engine being rated for 36.6 manifold pressure, in reality, it is capable of delivering more than 40 at sea level. This is modeled in this mod.

-Propeller friction and thrust adjusted to match real world behaviour.

-Carburetor heat sensitivity and delta temperature adjusted to reflect real plane icing conditions. "Carb Mixt Temp" gauge in C (celcius).

-Oil and Cylinder temperatures adjusted.

-Overboosting engine to more than 36.5 rated MP would lead engine wear and eventually engine damage with possible catastrophic event on that engine (kill the engine). It also rapidly increase cylinders temperatures.

-According to real plane, operating the engine at more then 1000RPMs with oil temperatures less than 40 will make the engine run rought, lead to engine wear and increase cylinders temperatures because of less efficient lubrication.

-Operating the engine with oil temperatures above 90 would lead to engine wear and at higher temperatures to engine damage with possible catastrophic event on that engine (kill the engine).

-Engine 1 minute full power and 30 minutes power is also modelled. Operating the engine above these settings for more than expected time will lead to engine wear. The counter would move backwards once we ease engine effort. Like real plane manual, 30 minutes power setting is altitude dependent.

Sea level: 34.5MP / 2200RPM

5000ft: 33.5MP / 2200RPM

-Operating the engine at high cylinders temperatures will lead to engine wear and if too high will give catastrophic or partial engine event.

While default msfs sdk only allows oil temperatures and pressures and these are computed after engine calculations and therefore they don't have a direct effect on performance, with this new system oil is treated as something with substance that exists in aircraft and impacts on how plane behaves, not only mechanically but also how it flyes.

-Almost all instruments that are at disposal on real plane to deal with oil. Oil shutters, Oil bypass lever and oil shutoff valve. All of them with custom made code and with same functionality as in real plane.

-New batteries: persistent voltages, voltage decay with low temperature, longer time to recharger under low temperatures, faster time de deplete its levels with low temperature.

-Almost all systems amperage changed to match real counterparts.

-Some electric circuits that didn't have any system associated were removed.

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