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Meet the aircraft
Stemme places the engine within the fuselage and drives a propeller that folds into the nose for gliding flight. Side-by-side seats and long wings combine powered touring with soaring.
Aircraft background
Wikipedia contributors · Read more ↗Berlin sightseeing becomes his first glider landing
Stagnito joined Martin Just in an aircraft awaiting delivery to its new owner. Just handled the crosswind takeoff, then handed over the controls for a flight above Berlin. The direct control feel appealed to Stagnito, while familiar landmarks below supplied plenty of reasons to reach for his camera. The hoped-for lift failed to appear, so the flight returned towards Strausberg.
AOPA Pilot · September 2025. Spring flight in a 2025 S12-G with 71 ft wings at Strausberg, with instructor Martin Just. This is the shorter-wing configuration.
AOPA Pilot · Read more ↗Bring the propeller into the nose
The cockpit guide labels separate propeller-brake, propeller-position and nose-cone controls. The feature list describes simulated braking and stowing.
S12G · Microsoft Flight Simulator · MSFS 2024
Microsoft / aircraft developers · Read more ↗Into the cockpit
YouTube Glider Airstrip · 2 min ·
Dream Journey: Stemme S12G First Flight from Strausberg to the Alps
A Stemme S12G journey from Strausberg towards the Alps.
Real aircraft · Stemme S12G
Watch on YouTube ↗Preview images are served by AirframeDB. Videos open on YouTube only when you choose to watch.
Meet Stemme S12G
Stemme places the engine within the fuselage and drives a propeller that folds into the nose for gliding flight. Side-by-side seats and long wings combine powered touring with soaring.
The MSFS S12G is a later development. S10 references describe the underlying concept, while the S12G manual documents its propulsion controls and cockpit. Photographs of the S10 are labelled as family background.
Stemme S12G
Aircraft type designators
Use the code for the model you are flying. The linked authority lists the applicable aircraft.
Stemme S12G — motorglider with a retractable engine or folding/retractable propeller; ICAO special designator
ICAO — special designators ↗Checked 2026-09-14History & design
Development milestones
First flight: 1986
Wikipedia contributors · Stemme S10 ↗Stemme S10 · family/variant named by the source · Wikipedia revision 1361362058
Pilot accounts
Berlin sightseeing becomes his first glider landing
Stagnito joined Martin Just in an aircraft awaiting delivery to its new owner. Just handled the crosswind takeoff, then handed over the controls for a flight above Berlin. The direct control feel appealed to Stagnito, while familiar landmarks below supplied plenty of reasons to reach for his camera.
The hoped-for lift failed to appear, so the flight returned towards Strausberg. Stowing the propeller changed the experience abruptly: without engine noise, they removed their headsets and talked normally. Just then coached Stagnito through his first glider landing, helping with the airbrakes on final.
AOPA Pilot · September 2025. Spring flight in a 2025 S12-G with 71 ft wings at Strausberg, with instructor Martin Just. This is the shorter-wing configuration.
Read the full account · AOPA Pilot ↗Using the engine to reach another piece of the Alps
Marzinzik’s flight towards the Zugspitze mixed powered climbing, ridge lift and rough spring thermals. The hoped-for wind was weaker than forecast, and a promising climb later disappeared. With the next wave cloud still beyond reach, restarting the engine offered a straightforward way to continue exploring the mountains.
He found that change psychologically different from using an auxiliary engine to end an unsuccessful soaring flight. Here, powered flight felt like part of the journey. Once higher, they returned to gliding and passed near the summit station before heading back to Innsbruck.
aerokurier · June 2017. March flight from Innsbruck with Markus Lewandowski in the 25 m S12 Twin Voyager, serial 6; a long-wing family variant.
Read the full account · aerokurier ↗Quiet flight and hard work over familiar Danish ground
Trabolt enjoyed the sudden quiet when the engine stopped and the propeller disappeared into the nose. Flying back towards his home airfield in a strong headwind showed how readily the aircraft could alternate between powered travel and gliding. Later, a small thermal offered a more demanding test of its soaring side.
Holding the large aircraft in the narrow lift took patience and enough rudder effort to leave his leg cramped, although the eventual height gain impressed him. He also disliked the flap selector and the additional control friction he attributed to the autopilot. The return brought a reminder of the powerful wheel brakes.
Nordic Gliding · July 2018. D-KVOY, a 25 m S12, with demonstration pilot Wolf-Rudiger Kruhl at Gørløse; distinct from the short-wing S12-G flown in the AOPA report.
Read the full account · Nordic Gliding ↗In your simulator
Systems, equipment and documentation for each developer’s aircraft.
MSFS 2024S12G
Microsoft Flight Simulator · Released
S12G
Microsoft Flight Simulator · Released
Aircraft specifications
Published figures for the named real-aircraft variant. Simulator equipment and performance can differ.
| Specification | Published value |
|---|---|
| Length | 8.42 m (27 ft 7 in) |
| Wingspan | 23.00 m (75 ft 6 in) (excluding winglets) |
| Height | 1.80 m (5 ft 11 in) |
| Wing area | 18.70 m² (201 sq ft) |
| Empty weight | 645 kg (1,422 lb) |
| Gross weight | 850 kg (1,874 lb) |
| Powerplant | 1 × Rotax 914 F2/S1 turbocharged flat-four engine, 84.6 kW (113 hp) |
| Propellers | 2-bladed |
| Cruise speed | 259 km/h (161 mph, 140 kn) |
| Stall speed | 78 km/h (48 mph, 42 kn) |
| Range | 1,730 km (1,075 mi, 934 nmi) (maximum fuel) |
| Service ceiling | 9,140 m (30,000 ft) |
| Rate of climb | 4.0 m/s (790 ft/min) |
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.
Simulator documentation
Bring the propeller into the noseS12G · Microsoft Flight Simulator · MSFS 2024
The cockpit guide labels separate propeller-brake, propeller-position and nose-cone controls. The feature list describes simulated braking and stowing.
Got Friends S12-G manual v3 · MSFS2024, PDF pages5 and8
Microsoft / aircraft developers · Read the source ↗Some labelled controls are inoperableS12G · Microsoft Flight Simulator · MSFS 2024
The manual explicitly marks the TCU emergency switch and canopy-jettison handle as inoperable. Their presence in the illustrated cockpit does not establish a working simulated function.
Manual PDF page8; stated implementation limits
Microsoft / aircraft developers · Read the source ↗A sailplane cockpit with separate engine electricsS12G · Microsoft Flight Simulator · MSFS 2024
The Stemme S12G manual identifies digital trim indication and gliding instruments, together with separate engine and airframe electrical controls. The propulsion installation is part of a self-launching sailplane, so its controls have a different purpose from those in a conventional touring single.
Archived simulator manual; installed package revision not observed · PDF p.8; cockpit
Microsoft / aircraft developers · Read the source ↗Powered-flight displays meet soaring instrumentsS12G · Microsoft Flight Simulator · MSFS 2024
Working Title G3X Touch displays sit alongside the custom LX navigation and variometer suite. A yaw string and conventional airspeed and altitude instruments remain part of the illustrated panel.
Manual PDF pages5 and8
Microsoft / aircraft developers · Read the source ↗Use the EFB for the aircraft checklistS12G · Microsoft Flight Simulator · MSFS 2024
The MSFS2024 chapter describes interactive EFB checklists with location highlighting and progress tracking. The canopy handles are documented as the MSFS2024 entry and exit interaction.
Manual PDF pages7 and11
Microsoft / aircraft developers · Read the source ↗Pilot account
Berlin sightseeing becomes his first glider landingAOPA Pilot · September 2025. Spring flight in a 2025 S12-G with 71 ft wings at Strausberg, with instructor Martin Just. This is the shorter-wing configuration.
Stagnito joined Martin Just in an aircraft awaiting delivery to its new owner. Just handled the crosswind takeoff, then handed over the controls for a flight above Berlin. The direct control feel appealed to Stagnito, while familiar landmarks below supplied plenty of reasons to reach for his camera. The hoped-for lift failed to appear, so the flight returned towards Strausberg.
Kollin Stagnito
AOPA Pilot · Read the source ↗Using the engine to reach another piece of the Alpsaerokurier · June 2017. March flight from Innsbruck with Markus Lewandowski in the 25 m S12 Twin Voyager, serial 6; a long-wing family variant.
Marzinzik’s flight towards the Zugspitze mixed powered climbing, ridge lift and rough spring thermals. The hoped-for wind was weaker than forecast, and a promising climb later disappeared. With the next wave cloud still beyond reach, restarting the engine offered a straightforward way to continue exploring the mountains. He found that change psychologically different from using an auxiliary engine to end an unsuccessful soaring flight. Here, powered flight felt like part of the journey.
Gerhard Marzinzik
aerokurier · Read the source ↗Read the original documentation from the people who created it. Manuals open on their publisher’s website.
Manual
Microsoft Flight Simulator aircraft manualsMicrosoft / aircraft developers Stemme S12-G ManualMicrosoft / aircraft developersAircraft background
Stemme S10Wikipedia contributors · Research background · Wikipedia revision 1361362058 · retrieved 2026-09-12Resource
MSFS 2024 FAQ and edition aircraft inventoryMicrosoftType designator
ICAO — special designatorsInternational Civil Aviation Organization · Glider and motorglider categories; checked 2026-09-14Built-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-20261022-v1 · 1 profile choice
Stemme S12G
Free and Pro · Revision 1 · Partial review
MSFS 2024
Stemme S12G: The selected resistance supplies motor-glider stick loading.
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