The Stemme S12 is a touring two-seat motor glider with side-by-side seating, built to travel efficiently under power then switch to pure soaring when you want it. Discover Stemme S12 aircraft for sale worldwide on AvPay. Browse active Stemme S12 listings and find available aircraft across the USA, North America, UK, Europe, Asia, Africa, Australia and South America. Connect directly with aircraft brokers, private sellers, flying clubs, flight schools and manufacturers. Explore the full inventory of aircraft for sale on AvPay here!
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Finding a Stemme S12 for Sale on AvPay
AvPay offers a global marketplace for Stemme S12 aircraft, connecting buyers and sellers across the USA, North America, UK, Europe, Asia, Africa, Australia, South America, and beyond. The S12 is a modern touring motor glider that blends long range cruising with efficient soaring in one composite airframe.
Refine your Stemme S12 search on AvPay with our easy-to-use filters. Quickly find your perfect aircraft by condition, year, total time, location, price, and seller.
As a leading aviation marketplace, AvPay features a diverse range of aircraft for sale, including the Stemme S12 powered sailplane. Explore our full Stemme selection here, or browse all aircraft from various manufacturers here.
Found your ideal Stemme S12? Connect directly with sellers on AvPay via WhatsApp, private message, or phone to discuss logbooks, total time and the exact equipment fit of the Stemme S12 Aircraft For Sale.
Interesting facts about the Stemme S12
✈ The Stemme S12 is a two seat side-by-side touring motor glider designed to switch between powered cruise and silent soaring with minimal workload.
✈ A mid fuselage Rotax 914 Turbo drives a retractable folding propeller via a shaft, keeping the nose clean in glide mode.
✈ Stemme designed the S12 around a foldable propeller system that transitions from glide to engine operation in seconds.
✈ The S12 uses a retractable undercarriage and composite structure, which helps reduce drag during cross country soaring.
✈ The wings fold to a reduced span for ground handling and storage, which can matter for hangar planning and towing.
✈ Stemme offers multiple wing spans in the S12 family, including a full span option aimed at maximising glide efficiency.
✈ Typical fuel capacity is 120 litres, stored as two 60 litre tanks, which supports long touring legs between refuelling stops.
✈ The S12 platform commonly integrates modern soaring and navigation avionics, including glass cockpit options and FLARM capable configurations.
Model Variants for buyers to consider when purchasing a Stemme S12
Stemme markets the S12 in three closely related variants, the Twin Voyager S12, the Grand Tourer S12-G and the Sky Cruiser S12-SW. The S12 and S12-G focus on the long span touring concept with folding wings and a high efficiency glide profile, while the S12-SW uses a shorter wingspan package aimed at easier ground handling and hangar fit without changing the core side-by-side cabin and retractable propeller drivetrain. These differences matter to buyers because wingspan affects storage options, wing folding logistics and the balance between soaring efficiency and day to day practicality.
Stemme S12 Specifications
Information provided here is as a guide only. This information should not be used for flight planning or other aircraft operations. Aircraft model variations, custom specifications, modifications, upgrades and age will have a considerable impact on the details listed below. Please check with the seller, manufacturer or aviation authority for the precise aircraft specifications.
Length: 8.42 m (27.6 ft)
Wingspan: 25.0 m (82.02 ft)
Wingspan (folded): 11.4 m (37.40 ft)
Height: 1.75 m (5.74 ft)
Max Take Off Weight (MTOW): 900 kg (1,984 lb)
Fuel Capacity: 120 L (31.7 US gal)
FAQs About the Stemme S12
Is the Stemme S12 a motor glider or a conventional aeroplane?
The Stemme S12 is a touring motor glider, also called a powered sailplane. It is designed to cruise efficiently under power, then transition to engine off soaring with the propeller stowed.
How many seats does the Stemme S12 have?
The S12 uses a two seat side-by-side cockpit layout, which suits shared touring, training transitions and workload sharing on long legs.
What engine does the Stemme S12 use?
The S12 family uses a Rotax 914 Turbo installation, mounted in the fuselage and connected to a retractable folding propeller system.
What are the key differences between the S12, S12-G and S12-SW?
The S12 and S12-G align with the long span touring concept, while the S12-SW uses a shorter wingspan configuration. Buyers should match the variant to hangar space, expected cross country soaring and preferred ground handling.
What should buyers inspect closely on a used Stemme S12?
Focus on the retractable propeller mechanism, the driveshaft system, landing gear retraction components and wing folding hardware. Confirm compliance with maintenance schedules and verify complete records for the engine, propeller and airframe.
Get help buying a Stemme S12
Can’t find the Stemme S12 aircraft you’re looking for? Get in touch with an Aircraft Broker to help you buy an aircraft via the Aircraft Broker Directory. Alternatively you can browse Aircraft Brokerage and Aircraft Acquisition Services through the aviation marketplace to help you with the purchase of a Stemme S12 motor glider.
Sell your Stemme S12 on AvPay
Do you have a Stemme S12 Aircraft for Sale? Get your aircraft listed on AvPay and get in front of buyers searching for a Stemme S12 around the world. AvPay is a Zero Workload Website so you will never have to make your own updates and each aircraft listing will be featured on our Social Media Pages, giving you extra visibility in front of our 190,000+ followers. With AvPay you will not just generate enquiries on your Aircraft Listings. You will also generate enquiries through your Aircraft Broker Profile and through each of the Service Listings you include on our Aviation Marketplace Pages. Let AvPay promote your Stemme S12 aircraft for sale.
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Find Finance for buying a Stemme S12
Need financing to purchase your Stemme S12 Aircraft? Start by presenting complete logbooks, a clear equipment list and evidence of recent maintenance, as lenders often scrutinise complex retract systems and specialty propeller drivetrains. Use an independent pre purchase inspection to confirm airframe condition and to document any upcoming maintenance costs. Build your finance plan around engine time, propeller system status and avionics value rather than year alone. Work with a lender familiar with sailplanes and motor gliders so underwriting aligns with how the S12 trades.
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Find Insurance for a Stemme S12
Purchasing a Stemme S12 Aircraft is an exciting step and ensuring it’s properly insured is essential for peace of mind. Ask for an agreed value policy that reflects avionics, engine status and the condition of the retractable propeller and landing gear systems. Discuss training requirements early, especially if you are new to powered sailplanes or folding wing operations. Confirm how the policy handles soaring operations, cross border touring and hangar or trailering risks. Provide recent maintenance records and a transition plan, as clear documentation can support smoother underwriting.
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