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Řada FS-α (alfa) představuje novou generaci čtyřtaktních motorů O.S. s ventilovým rozvodem. Oproti předchozí motorům FS-Surpass se vyznačují vyšším výkonem při zachování stejných zástavbových rozměrů, což umožnuje bez potíží těžit z pestré nabídky stavebnic a stavebních plánů modelů letadel zkonstruovaných pro O.S. motory v posledních desetiletích.
- Nový systém mazání odstraňuje potřebu odvětrávání klikové skříně, takže odpadá přepadová hadička obvyklá u dřívějších generací motorů.
- Nový dvoujehlový karburátor Typ 61N zajišťuje stabilní a pravidelný chod v celém rozsahu otáček a snadné seřízení motoru. Sací hrdlo je opatřeno nátrubkem tvarovaným jako Venturiho trubice snižujícím únik paliva do prostoru motorového krytu, pozitivně ovlivňujícím proudění nasávaného vzduchu a omezujícím hluk produkovaný sáním.
- Nový tlumič s větším objemem a možností nastavení zadní části s výfukovým hrdlem do požadovaného směru zajišťuje účinné tlumení a dává motoru hluboký měkký zvuk.
FS α-72 je čtyřdobý motor s ventilovým rozvodem konstruovaný pro modely letadel všeho druhu, zvláště vhodný je pro RC makety. Je osazen dvoujehlovým karburátorem typu 61NA. V základní sestavě je dodáván rovněž expanzní tlumič výfuku typy F-5030. Orientaci výfukového hrdla je možno měnit otáčením zadní části tlumiče o 360°, orientaci těla tlumiče a vzdálenost mezi hlavou válce a tlumičem je možno nastavovat díky závitové přechodce.
- Kliková hřídel má závit pro matici vrtule UNF 1/4-28, v základní sestavě motoru je dodávána sada pojistné matice O.S. pro spolehlivé upevnění vrtule.
- Doporučené rozměry vrtulí: Sport a Akrobat: 13x6~8“, 12x7~8“ / Maketa: 14x6~7”
- Doporučená palivová nádrž: 220-300 ml; 220 ml nádrž vystačí na 12 minut letu za předpokladu, že nelétáte stále na plný plyn.
- Doporučené palivo: nejméně 18% ricinového nebo syntetického oleje, 5-20% nitromethanu.
- Doporučená svíčka: O.S. MAX typ F.
- Stejné zástavbové rozměry jako klasický FS-70 Surpass.
Sada motoru obsahuje: motor FS α-72 s RC karburátorem 61N, tlumič výfuku F-5030, návod k obsluze.
| Zdvihový objem [ccm] | 11.79 |
| Počet válců | 1 |
| Vrtání [mm] | 27 |
| Zdvih [mm] | 20.6 |
| Provozní otáčky [ot./min] | 2400 - 12500 |
| Výkon motoru (při 11000 ot./min) [W] | 880 |
| Výkon (při 11000 ot./min) [HP] | 1.2 |
| Hmotnost (motor) [g] | 476 |
| Hmotnost (tlumič) [g] | 54 |
| Doporučený objem nádrže [ml] | 220 - 300 |
| Doporučená svíčka | O.S. MAX Typ F |
| Závit matice vrtule | UNF 1/4-28 |
Equipments required
 | KAV50.1.1406 Name: Wooden propeller KAVAN 14x6 2-blade natural Price: 20,38€  Delivery status: in stock at supplier KAVAN high-quality wooden propellers were constructed with the help of the latest software and are produced using the newest and most advanced CNC machines. Their profile and shape are optimized to ensure high efficiency throughout the range of operating speeds. The unique shaping of the leaf ends contributes to achieving low noise propellers. Whether you mount them on a "glow plug" or "gasoline" your KAVAN propeller is your choice to "hold" your aerobatic model or dummy in the air! KAVAN propellers are designed and manufactured in the Czech Republic. |
 | KAV50.1.1306 Name: Wooden propeller KAVAN 13x6 2-blade natural Price: 19,13€ Delivery status: contact us KAVAN high-quality wooden propellers were constructed with the help of the latest software and are produced using the newest and most advanced CNC machines. Their profile and shape are optimized to ensure high efficiency throughout the range of operating speeds. The unique shaping of the leaf ends contributes to achieving low noise propellers. Whether you mount them on a "glow plug" or "gasoline" your KAVAN propeller is your choice to "hold" your aerobatic model or dummy in the air! KAVAN propellers are designed and manufactured in the Czech Republic. |
 | KAV50.1.1308 Name: Wooden propeller KAVAN 13x8 2-blade natural Price: 19,13€ Delivery status: in stock at supplier KAVAN high-quality wooden propellers were constructed with the help of the latest software and are produced using the newest and most advanced CNC machines. Their profile and shape are optimized to ensure high efficiency throughout the range of operating speeds. The unique shaping of the leaf ends contributes to achieving low noise propellers. Whether you mount them on a "glow plug" or "gasoline" your KAVAN propeller is your choice to "hold" your aerobatic model or dummy in the air! KAVAN propellers are designed and manufactured in the Czech Republic. |
 | OS71615009 Name: Spark plug OS MAX F 4-stroke Price: 17,88€ Delivery status: in stock at supplier Glow plugs for four-stroke engines. |
 | 2VRP1406C Name: FOXY Carbon prop 14x6/36x15 cm Price: 7,04€ Delivery status: in stock at supplier Line of propellers made of plastic filled with carbon fiber, designed for high power electro & combusion engines. Avaliable in diameters from 7" to 14". |
 | 2VRP1407P Name: FOXY Pro prop 14x7/36x18 cm Price: 5,79€ Delivery status: in stock at supplier Line of propellers made of high strength polyamid, 50% filled by glass fiber. Designed for airplanes with combustion engine. Developed with knowledge of modern and efficient blade profiles for high performance. Avaliable in diameters from 9" to 24". |
 | 2VRP1306P Name: FOXY Pro prop 13x6/33x15 cm Price: 4,96€ Delivery status: in stock at supplier Line of propellers made of high strength polyamid, 50% filled by glass fiber. Designed for airplanes with combustion engine. Developed with knowledge of modern and efficient blade profiles for high performance. Avaliable in diameters from 9" to 24". |
 | 2VRP1307P Name: FOXY Pro prop 13x7/33x18 cm Price: 4,96€ Delivery status: in stock at supplier Line of propellers made of high strength polyamid, 50% filled by glass fiber. Designed for airplanes with combustion engine. Developed with knowledge of modern and efficient blade profiles for high performance. Avaliable in diameters from 9" to 24". |
 | 2VRP1308P Name: FOXY Pro prop 13x8/33x20 cm Price: 4,96€ Delivery status: in stock at supplier Line of propellers made of high strength polyamid, 50% filled by glass fiber. Designed for airplanes with combustion engine. Developed with knowledge of modern and efficient blade profiles for high performance. Avaliable in diameters from 9" to 24". |
 | 2VRP1207P Name: FOXY Pro prop 12x7/30x18 cm Price: 3,71€ Delivery status: in stock at supplier Line of propellers made of high strength polyamid, 50% filled by glass fiber. Designed for airplanes with combustion engine. Developed with knowledge of modern and efficient blade profiles for high performance. Avaliable in diameters from 9" to 24". |
 | 2VRP1208P Name: FOXY Pro prop 12x8/30x20 cm Price: 3,71€ Delivery status: in stock at supplier Line of propellers made of high strength polyamid, 50% filled by glass fiber. Designed for airplanes with combustion engine. Developed with knowledge of modern and efficient blade profiles for high performance. Avaliable in diameters from 9" to 24". |
Spare parts
 | OS44381000 Name: Kompletní karburátor (61N) FS?72 Price: 112,08€ Delivery status: in stock at supplier |
| OS44304110 Name: Hlava válce FS?72 II Price: 87,08€ Delivery status: contact us |
| OS44301000 Name: Karter FS?72 Price: 82,92€ Delivery status: contact us |
| OS44302000 Name: Klika FS?72 Price: 66,25€ Delivery status: contact us |
 | OS44825000 Name: Tlumič F-5030 (FS?-81) Price: 53,75€ Delivery status: in stock at supplier |
| OS44362000 Name: Vačková hřídel FS?72 Price: 53,75€ Delivery status: in stock at supplier |
| OS44825100 Name: Tělo tlumiče F-5030 (FS?-81) Price: 45,42€ Delivery status: contact us |
| OS44303200 Name: Píst FS?72 Price: 37,46€ Delivery status: contact us |
| OS44381100 Name: Tělo karburátoru (61N) FS?72 Price: 37,46€ Delivery status: contact us |
| OS44303100 Name: Vložka FS?72 Price: 37,46€ Delivery status: contact us |
| OS44750100 Name: Sací ventil FS?72 Price: 29,13€ Delivery status: in stock at supplier |
| OS44751100 Name: Výfukový ventil FS?72 Price: 29,13€ Delivery status: contact us |
| OS44381200 Name: Šoupátko karburátoru (61N) FS?72 Price: 28,29€ Delivery status: contact us |
 | OS44303400 Name: Pístní kroužek FS?72 Price: 26,63€ Delivery status: in stock at supplier |
| OS45961410 Name: Díly vahadla ?81.FS70S.91S Price: 24,54€ Delivery status: contact us |
 | OS44305000 Name: Ojnice FS?72 Price: 22,88€ Delivery status: in stock at supplier |
| OS44369400 Name: Sací koleno FS?72 Price: 20,79€ Delivery status: in stock at supplier |
| OS45582300 Name: Jehla 70N.60F Price: 19,13€ Delivery status: contact us |
| OS44304210 Name: Krytka ventilů (černá) FS?72 II Price: 17,88€ Delivery status: contact us |
| OS71615009 Name: Spark plug OS MAX F 4-stroke Price: 17,88€ Delivery status: in stock at supplier Glow plugs for four-stroke engines. |
| OS44230000 Name: Kuličkové ložisko (R) FS?56.52S.FS70U Price: 17,46€ Delivery status: in stock at supplier |
| OS26531005 Name: Kuličkové ložisko (F) FS52S Price: 15,38€ Delivery status: contact us |
| OS44308000 Name: Unašeč FS?72 Price: 15,38€ Delivery status: in stock at supplier |
| OS44825200 Name: Koleno výfuku F-5030 (FS?-81) Price: 14,54€ Delivery status: contact us |
| OS44381300 Name: Nátrubek sání (61N) FS?72.81P Price: 14,54€ Delivery status: contact us |
 | OS45810100 Name: Pojistná matka FS30S.40S-56.FS70U Price: 13,71€ Delivery status: contact us |
| OS45664000 Name: Vačkový zvedák FS48S.52S.61.FS70U Price: 13,71€ Delivery status: contact us |
| OS44307010 Name: Zadní víko FS?72 II Price: 13,29€ Delivery status: contact us |
 | OS45231100 Name: Ložisko vačkové hřídele FS40-120S Price: 12,88€ Delivery status: in stock at supplier |
| OS44881970 Name: Jehla 60RA(?-81) Price: 11,21€ Delivery status: contact us |
 | OS27381940 Name: Držák trysky 20C.60U.70D.40J Price: 9,96€ Delivery status: contact us |
 | OS44366100 Name: Krytka táhla FS?72 Price: 9,96€ Delivery status: in stock at supplier |
 | OS44301100 Name: Krytka vačkové Hřídele FS?72 Price: 9,13€ Delivery status: in stock at supplier |
 | OS44306000 Name: Pístní čep FS?72 Price: 8,71€ Delivery status: in stock at supplier |
| OS45960400 Name: Závlačka FS70S.70S2.70U.91S.91S2 Price: 8,71€ Delivery status: contact us |
| OS44825400 Name: Set šroubů tlumiče F-5030 (M4.0X95) Price: 7,88€ Delivery status: contact us |
| OS79871030 Name: Šroub M2.6X10 (10ks./SET) Price: 7,88€ Delivery status: contact us |
| OS79871020 Name: Šroub M2.6X7 (10ks./SET) Price: 7,88€ Delivery status: contact us |
| OS79871110 Name: Šroub M3.0X 8(10PCS/SET) Price: 7,88€ Delivery status: in stock at supplier |
| OS79871150 Name: Šroub M3.0X15(10PCS/SET) Price: 7,88€ Delivery status: in stock at supplier |
| OS79871200 Name: Šroub M3.0X20(10PCS/SET) Price: 7,88€ Delivery status: contact us |
 | OS44366000 Name: Táhlo FS?72 Price: 7,88€ Delivery status: in stock at supplier |
| OS45061202 Name: Nastavovací šroub FS.FT.FF.FR.IL Price: 7,46€ Delivery status: contact us |
 | OS24981837 Name: O-kroužek FOR Jehla Price: 6,63€ Delivery status: in stock at supplier |
 | OS27708200 Name: Klínek 50SX.61SX.RX.91SXH.SZ.RZ-H Price: 5,79€ Delivery status: contact us |
| OS44714100 Name: Těsnění hlavy FS70U.FS72-81 Price: 5,79€ Delivery status: contact us |
| OS45626030 Name: Matka kolene výfuku (M11) FS70S-91S2 Price: 4,96€ Delivery status: contact us |
 | OS22681953 Name: Nipl/tryska tlakování č.1 Price: 4,96€ Delivery status: in stock at supplier |
| OS24881824 Name: O-kroužek (7B.20G) Price: 4,96€ Delivery status: in stock at supplier |
 | OS46066319 Name: O-kroužek (L)P-3 Price: 4,96€ Delivery status: in stock at supplier |
| OS46115000 Name: O-kroužek (S-11.2) Price: 4,96€ Delivery status: in stock at supplier |
| OS27881840 Name: O-kroužek (S-4) Price: 4,96€ Delivery status: in stock at supplier |
| OS22081408 Name: Páka plynu (NO.5) Price: 4,96€ Delivery status: in stock at supplier |
| OS45960310 Name: Pojistka pružiny ventilu FS70S2.70U.91S2 Price: 4,96€ Delivery status: contact us |
| OS45581700 Name: Pojistný šroub karburátoru FS70S-120S Price: 4,96€ Delivery status: contact us |
| OS45960210 Name: Pružina ventilu (1PC.) FS70S2.91S2.FS70U Price: 4,96€ Delivery status: contact us |
| OS26711305 Name: Pružinka jehly NO.4 Price: 4,96€ Delivery status: in stock at supplier |
| OS26381501 Name: Sada šroubů M3X3 Price: 4,96€ Delivery status: in stock at supplier |
| OS44625410 Name: Těsnění tlumiče(S-20) F-4040.F-5030 Price: 4,96€ Delivery status: contact us |
| OS22681957 Name: Tryska NO.7 Price: 4,96€ Delivery status: in stock at supplier |
| OS22081313 Name: Upevňovací šroub páky plynu (M3X6)1A-3A Price: 4,96€ Delivery status: in stock at supplier |
| OS45581820 Name: Vodící šroub 20C.60F.60L.60MC.70D Price: 4,96€ Delivery status: contact us |
| OS45761600 Name: Zajištění vahadel FS26S-120S.FS70U Price: 4,96€ Delivery status: contact us |