Start here
A few places to begin, from the aircraft’s story to the people who fly it.
Aircraft and simulator background
The S.205-18/R is a four-seat, all-metal low-wing aircraft. Its Lycoming O-360 produces 180 hp and turns a two-bladed constant-speed propeller. Electrically retractable tricycle gear and manually selected flaps form the documented configuration.
SIAI-Marchetti S.205-18/R
nemethdesigns.com · Read more ↗Cables, trim and configuration controls
The manual describes a conventional wheel and pedals operating the primary surfaces through cables. The centre trim wheel controls the elevator tab by cable. Electrically retractable gear and four-position manual flaps are separate mechanisms.
SIAI-Marchetti S.205-18/R
nemethdesigns.com · Read more ↗The 18/R propulsion fit
The 18/R configuration uses a 180 hp O-360 and a two-bladed constant-speed propeller. The manual also identifies the autopilot controls.
SIAI-Marchetti S.205-18/R
nemethdesigns.com · Read more ↗Meet SIAI-Marchetti S.205-18/R
The S.205-18/R is a four-seat, all-metal low-wing aircraft. Its Lycoming O-360 produces 180 hp and turns a two-bladed constant-speed propeller. Electrically retractable tricycle gear and manually selected flaps form the documented configuration.
Nemeth's manual describes cable-operated primary controls and an elevator trim tab controlled from a centre wheel. The product's background identifies honeycomb panels in the wing skin as a feature of the design.
SIAI-Marchetti S.205-18/R
SIAI-Marchetti → · Explore the family →
SIAI-Marchetti S.205-18/R
nemethdesigns.com · SIAI-Marchetti S.205-18/R — product and aircraft reference ↗Aircraft type designators
No type designator selected for this reference.
History & design
The S.205 line
The developer's aircraft background dates the S.205's first flight to 1965 and describes civil and military use, particularly training. It identifies an all-metal low-wing airframe whose large honeycomb wing-skin panels reduce the need for conventional riveting.
nemethdesigns.com · SIAI-Marchetti S.205-18/R — product and aircraft reference ↗Product description, configuration and simulator editions
Systems & details
Cables, trim and configuration controls
The manual describes a conventional wheel and pedals operating the primary surfaces through cables. The centre trim wheel controls the elevator tab by cable. Electrically retractable gear and four-position manual flaps are separate mechanisms.
The 18/R propulsion fit
The 18/R configuration uses a 180 hp O-360 and a two-bladed constant-speed propeller. The manual also identifies the autopilot controls.
A four-seat touring and training layout
Nemeth’s S.205-18/R description combines a four-seat cabin with an all-metal low wing, an electrically retractable tricycle undercarriage and a 180 hp O-360. Its two-blade Hartzell is a constant-speed propeller. The developer emphasizes the large honeycomb wing-skin panels used to preserve the laminar profile with fewer rivets. Its published speed and range figures refer to this 18/R rendition; the family name alone is not enough to identify another S.205’s engine or equipment.
In your simulator
Systems, equipment and documentation for each developer’s aircraft.
MSFS 2020 · MSFS 2024Nemeth Designs SIAI-Marchetti S.205-18/R
Nemeth Designs · Released
Nemeth Designs SIAI-Marchetti S.205-18/R
Nemeth Designs · Released
Manuals & resources
Find your next read
Choose a topic for a short introduction and a link to the original source. Simulator references identify the developer and edition they cover.
Developer documentation
SIAI-Marchetti S.205-18/R — product and aircraft referenceSIAI-Marchetti S.205-18/R
Product description, configuration and simulator editions
nemethdesigns.com · Read the source ↗SIAI-Marchetti S.205-18/R — product and aircraft referenceSIAI-Marchetti S.205-18/R
Product description, configuration and simulator editions
nemethdesigns.com · Read the source ↗Developer manual
SIAI-Marchetti S.205-18/R — manualSIAI-Marchetti S.205-18/R
S.205-18/R manual; aircraft description and controls, PDF pp.2–4
nemethdesigns.com · Read the source ↗Read the original documentation from the people who created it. Manuals open on their publisher’s website.
Developer documentation
SIAI-Marchetti S.205-18/R — product and aircraft referencenemethdesigns.com · Product description, configuration and simulator editions SIAI-Marchetti S.205-18/R — product and aircraft referencenemethdesigns.com · Product description, configuration and simulator editionsDeveloper manual
SIAI-Marchetti S.205-18/R — manualnemethdesigns.com · S.205-18/R manual; aircraft description and controls, PDF pp.2–4Built-in force-feedback profiles
Read the documentary basis, editable starting settings and remaining questions for the aircraft you fly. Each explanation refers to the exact profile revision shown.
Catalogue programme-20261011-v3 · 2 profile choices
Nemeth Designs SIAI-Marchetti S.205-18/R
Nemeth Designs · Free and Pro · Revision 1 · Partial review
MSFS 2020 · MSFS 2024
An Italian four-seat touring aircraft with retractable gear and a 180 hp Lycoming.
SIAI-Marchetti S.205-18/R
Free and Pro · Revision 1 · Partial review
MSFS 2020 · MSFS 2024 · X-Plane 12
An Italian four-seat touring aircraft with retractable gear and a 180 hp Lycoming.
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