# Scheibe Falke > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Scheibe_Falke > Markdown URL: https://mediated.wiki/source/Scheibe_Falke.md > Source: https://en.wikipedia.org/wiki/Scheibe_Falke > Source revision: 1321133195 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) German touring motor glider, 1963 SF-25 Falke Scheibe SF 25 B at Schmallenberg-Rennefeld General information Type Motor Glider National origin West Germany Manufacturer Scheibe Aircraft GmbH Number built 1,200+ by October 1998 History First flight 1963 Developed from Scheibe Bergfalke The **Scheibe SF-25 Falke** (English: Falcon) is a German touring [motor glider](/source/Motor_glider) developed from the earlier [Bergfalke](/source/Scheibe_Bergfalke) glider by [Scheibe Flugzeugbau](/source/Scheibe_Flugzeugbau). Since May 2006 the business has been run by [Scheibe Aircraft GmbH](/source/Scheibe_Flugzeugbau). ## Development The company had produced the [Motor Spatz](/source/Scheibe_SF-24_Motorspatz) but decided to produce a better light aircraft based on the [Bergfalke](/source/Scheibe_Bergfalke) glider. It had a new forward fuselage with an enclosed cockpit with two side-by-side seats and originally a [Hirth F10A2a](https://en.wikipedia.org/w/index.php?title=Hirth_F10A2a&action=edit&redlink=1) engine in the nose. It first flew in May 1963 as the **SF-25A Motor Falke**. After an initial batch of aircraft the wing was lowered and it was renamed as just the **SF-25B Falke**. A number of variants were built with various engines and the type was licence built by Sportavia-Putzer, [Aeronautica Umbra](/source/Aeronautica_Umbra) (Italy), Loravia (France) and [Slingsby](/source/Slingsby_Aviation) (United Kingdom). The current model is the SF 25C. It is currently available with a choice of three engines: the [Rotax 912](/source/Rotax_912) 80 hp, the [Rotax 912S](/source/Rotax_912) (100 hp) and the [Rotax 914F3](/source/Rotax_914) (115 hp). ## Variants Scheibe SF 25 A at Anspach airfield; note the shoulder wing configuration and outrigger wheels SF25 Motorfalke over [Ystad](/source/Ystad) 2022. **SF-25A Motor Falke** - First production batch with a Hirth F10A2a engine, 56 built. **SF-25B Falke** - Improved variant with lower wing position and a 45hp Stark Stamo engine, 372 built. **SF-25C Falke** - Same as a SF-25B but with an alternator and electric starter. Sub-variants include: - **Falke 1700** - - 49 kW (65 hp) [Limbach 1700 EA](/source/Limbach_1700_EA) 1 IA, driving propeller at 3,450 rpm; **Falke 2000** - - 60 kW (80 hp) [Limbach 2000 EA](/source/Limbach_L2000), driving propeller at 3,450 rpm (about 512 Limbach powered Falkes built by 1998); **Rotax Falke** - - (a) 60 kW (80 hp) [Rotax 912 A](/source/Rotax_912_A) running at 5,800 rpm and geared down to 2,500 rpm propeller speed; [tricycle gear](/source/Tricycle_gear) an option (about 130 Rotax powered Falkes built by 1998), or - (b) 75 kW (100 hp) [Rotax 912S](/source/Rotax_912) at 5,800 rpm and geared down to 2,500 rpm propeller speed, or - (c) 85 kW (115 hp) [Rotax 914F3](/source/Rotax_914) at 5,800 rpm and geared down to 2,500 rpm propeller speed with 5 minute time limit; 75 kW (100 hp) continuous. **Falke 100PS** - - Glider tug. **SF-25CS Falke** - - A SF-25C with a feathering propeller; feathering was an option with the Falke 1700, 2000, and Rotax Falke. **SF-25D Falke** - SF-25B converted with a Limbach 1700A engine. **SF-25E Super Falke** - A SF-25CS with extended wing, a narrow-chord vertical tail. air brakes and a raised bubble canopy, first flown in 1974. **SF-25K K-Falke** - A SF-25C with folding wings and large canopy. **[Slinsgby T61 Falke/Slingsby Venture](/source/Slingsby_Falke)** - Licence built variant of the SF-25B, 76 built ## Operators **[Oman](/source/Oman)** - [Royal Air Force of Oman](/source/Royal_Air_Force_of_Oman) ## Specifications (Rotax Falke) *Data from* [1] [2] **General characteristics** - **Crew:** 2 - **Length:** 7.60 m (24 ft 11 in) - **Wingspan:** 15.30 m (50 ft 2 in) - **Height:** 1.68 m (5 ft 6 in) tailwheel undercarriage - **Wing area:** 18.20 m2 (195.9 sq ft) - **[Aspect ratio](/source/Aspect_ratio_(aeronautics)):** 13.8 - **Empty weight:** 435 kg (959 lb) - **Max takeoff weight:** 650 kg (1,433 lb) - **Fuel capacity:** 55 L (14.5 UG gal, 12.0 Imp gal) standard - **Powerplant:** 1 × Rotax 912 A flat-4, air-cooled with water-cooled cylinder heads, 48 kW (65 hp) - **Propellers:** 2-bladed **Performance** - **Maximum speed:** 190 km/h (120 mph, 100 kn) - **Cruise speed:** 180 km/h (110 mph, 97 kn) maximum - **Stall speed:** 65 km/h (40 mph, 35 kn) - **Range:** 700 km (430 mi, 380 nmi) - **Service ceiling:** 4,580 m (15,030 ft) (more than) - **Maximum glide ratio:** 23-24 - **Rate of sink:** 1.0 m/s (200 ft/min) minimum Byron Bay gliding club (Australia) have re-engined using a Jabiru 2200. "We get a sound 500 ft/min climb rate measured with a logger and this aircraft will take an honest 190kg pay load with 1 hour of fuel"[3] ## Notes 1. **[^](#cite_ref-JAWA99_1-0)** Jane's All the World's Aircraft 1999/2000 p.163 1. **[^](#cite_ref-2)** ["Home"](http://www.scheibe-aircraft.de/). *scheibe-aircraft.de*. 1. **[^](#cite_ref-3)** ["Jabiru Falke"](http://www.byrongliding.com/technical/jabiru-falke/). 30 September 2011. ## References Wikimedia Commons has media related to [Scheibe SF 25](https://commons.wikimedia.org/wiki/Category:Scheibe_SF_25). - Jackson, Paul (1999). *Jane's All the World's Aircraft 1999–2000*. Coulsdon, Surrey: Jane's Information Group. p. 163. [ISBN](/source/ISBN_(identifier)) [0-71-061898-0](https://en.wikipedia.org/wiki/Special:BookSources/0-71-061898-0). - Taylor, Michael J. H. (1989). *Jane's Encyclopedia of Aviation*. London: Studio Editions. - Simpson, R.W. (1991). *Airlife's General Aviation*. England: Airlife Publishing. [ISBN](/source/ISBN_(identifier)) [1-85310-194-X](https://en.wikipedia.org/wiki/Special:BookSources/1-85310-194-X). - FLIGHT MANUAL SF25B [\[1\]](http://flytime.hu/wp-content/uploads/2015/06/Falke-S25B-Flight-Manual.pdf) - FLIGHT MANUAL SF25C [\[2\]](http://skylinesoaring.org/docs/Archive/Manuals_SF25C.pdf) [Archived](https://web.archive.org/web/20231130082123/https://www.skylinesoaring.org/docs/Archive/Manuals_SF25C.pdf) 2023-11-30 at the [Wayback Machine](/source/Wayback_Machine) v t e Aircraft designed and built by Scheibe Unpowered Mu-131 Bergfalke Spatz Specht Sperber Zugvogel SF-26 SF-27 SF-30 Club Spatz SF-34 Powered SF-23 Sperling SF-24 Motorspatz SF-25 Falke SF-27M SF-28 Tandem-Falke SF-29 SF-32 SF-33 SF-35 SF-36 SF-40 --- Adapted from the Wikipedia article [Scheibe Falke](https://en.wikipedia.org/wiki/Scheibe_Falke) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Scheibe_Falke?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.