Rotax 912 dual exhaust. Datasheet Aircraft Engine Rotax 912 ULS pdf .

Rotax 912 dual exhaust 4/January 01 2023 Effectivity: 912 Serie BRP-Rotax Page 3-1 Edition 4 / Rev. Dec 25, 2020 · 作为主要针对轻型飞机的入门级发动机，Rotax 912系列以其可靠性和高效而着称。80hp版Rotax 912系列发动机的大修间隔时间为2,000小时；同时具备非认证型号(Rotax 912 UL)、FAR33认证型号(Rotax 912 F)和JAR22认证型号(Rotax 912 A)。 Datasheet Aircraft Engine Rotax 912 ULS pdf Rotax Genuine Parts for Aircraft engines Flyer pdf Rotax Aircraft Feb 10, 2006 · Re: Rotax 912 UL exhaust Post by Morph » Thu Sep 03, 2009 12:46 pm Install the motor in the trike, take the wing off, take the trike to an exhaust place. I have noticed that the exhaust knuckles are leaking somewhat even though I lube the knuckles with high temp lube. This engine series offers a time between overhauls of 2,000 hrs and the best power to weight ratio in its class - no surprise that this engine is the best selling 4-stroke engine. This series was BRP's first Rotax engine dedicated for aircraft application only. 999-680 Engine Speed RPM In comparison to the 80 HP version of the Rotax 912 series the 100 HP product line offers more power while keeping the weight. the Rotax 912 is listed with no exhaust system (as supplied by Rotax). Also, don't see LEAF selling anything in these offerings. 000 hours and is available as non-certified (Rotax 912 UL) as well as certi-fied version according to FAR 33 (Rotax 912 F) and JAR 22 (Rotax 912 A). FADEC control). 121) F,S CertifiedtoFAR33(TCNo. The all 304 stainless steel Toucan dual exhaust system is designed for the Rotax 912, Rotax 912ULS and 912iS series of engines. Helmets; Hang Glider Wheels; Bags & Transport; Control Bar Down-Tubes - Hang Gliders; Aircraft Tubing 6061-T6; Speed Nuts for Control Bar Basetube (10) Speed Nuts for ASTM Compliant. 0 45m Exhaust for Rotax 2-Stroke and 4-Stroke engines. 4-cylinder; 4-stroke liquid-/air-cooled engine with opposed cylinders; Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet; 2 carburetors; Mechanical fuel pump; Dual electronic ignition The new 912 UL S is a 100 HP* version of the certified 81 HP 912 engine, with the same external dimensions as the standard Rotax 912. BJ Kitfox IV 912 Rotax 912 specifications, Rotax 912 specs performance curve, fuel consumption. - SL-916 i-009/915 i-011/912 i-005/912-014/914-012, Non-approved modifications or use of ROTAX® unapproved engine components or accessories for ROTAX® Aircraft Engines. I see Spruce sells electronic "Carbmate", and a twin dial gage. . 4 This series is available as non-certified (Rotax 912 ULS) and certified engine (Rotax 912 S) according to FAR 33. This engine type is well regarded for its easy maintenance and robustness. I have a 912 in my Merin EZ, with 750+ hrs on it. 8 PSI ROTAX 912 ULs - dcdi ROTAX 912 ULs - 100 HP info Pak Part No. Login. 448, and shall not, without prior written permission of BRP-Rotax GmbH & Co KG, be disclosed in whole or in part to Rotax 912. Click here Mar 31, 2012 · heads) onto my existing exhaust pipes for a Kitfox IV with early 912. and min. E00051EN)JAR-E (TCNo. - 102 PSI Oil Tempertaure Most favorable operating temp: 190˚-230˚F (90-110˚C) fuel Pressure 5. 8 external alternator 3. Probe for the measurement of the temperature of exhaust (EGT) for all ROTAX engines. Ducati Stator-Dual Ignition CDI - 996849 Common electrical and ignition parts for Rotax 912 and Rotax 582 Exhaust Exhaust for Rotax 2-Stroke and 4-Stroke We have the largest variety of Experimental Aircraft Exhaust Builder's Kits on the market, everything from Rotax 912 to Lycoming IO-720, and everything in between. Recently featured in Light Sport & Ultralight Flying magazine, Kitplanes Magazine, and Ultralight News online, this innovative design features: Výfuková sada pro Rotax 912: Tlumič s bočním výstupem. I pulled muffler to check for any obstruction and found none, any ideas? I do not have an EGT gauge ,could it be the wrong muffler? The Rotax 912 series is well regarded for its reliability and efficiency and is primarily targeted as the entry level motor in the light aviation industry. SPECIALIZES IN LSA, EXPERIMENTAL, AND HOMEBUILT AIRCRAFT. ENVIRONMENT NOTE Protect the environmental! Never spill any coolant. harnesses for ROTAX ® Engine Type 912 i (Series), 915 i (Series) 3 Cut the cable tie from the exhaust gas temperature sensor cable (cyl. Thanks!. - SB-912-044 - Use of the ROTAX® supplied airbox for all ROTAX® Engine Types 912 A/F (Series). This is done to get the exact exhaust system you want. El motor 912 UL original de 80 hp (60 kW) tiene una capacidad de 1211 cc (73,9 pulgadas cúbicas) y una relación de compresión de 9,1:1, y está diseñado para funcionar con gasolina de automóvil normal, con hasta un 10 % de etanol. The exhaust system is stock Rotax. 0 The Rotax 912 series is well regarded for its reliability and efficiency and is primarily targeted as the entry level motor in the light aviation industry. No. The Toucan exhaust is a dual exhaust system that uses two separate exhaust systems for each side of the engine. NOTE: For non-ORIGINAL ROTAX exhaust systems, use the main- tenance manual of the aircraft manufacturer. S Fig. The 80HP Rotax 912 series is well regarded for its reliability and efficiency and is primarily targeted as the entry level motor in the light aviation industry. Visitez eBay pour une grande sélection de Rotax Exhaust 912. 0 6. Rotax-Rotax 912; 80 – 100 + HP and the 914 turbo 115 + HP engines offer a wide range of exhaust options. All metric units therein are authoritative. AK191* min. Quantity Decrease quantity for Exhaust System - Rotax 912 UL (A/R) Increase quantity for Exhaust System - Rotax 912 UL (A/R) Add to cart This item is a recurring or deferred purchase. And the lady welder said she had done "millions" of these end replacements. 938-790. Description. 1 kg ROTALK is a web based support system which provides a common access point for locating key Information - Education - Support for their Rotax Aircraft Engines such as the Rotax 912, Rotax 914, Rotax 912 iS, Rotax 915 iS, Rotax 503 and Rotax 582. Our muffler is 1. Avvia il configuratore Dati del motore . These custom exhaust build kits come with all of the build components, materials, and consumables you need to build your very own custom experimental exhaust system. Muffler is TIG welded from 1. 0 This series is available as non-certified (Rotax 912 ULS) and certified engine (Rotax 912 S) according to FAR 33. 00 + ROTAX 912 CATALINA quantity- Plane Exhaust has been a leader in new and overhauled aircraft exhaust systems for – Oil change see latest issue Maintenance Manual (Line Maintenance) for the respective engine type, 912 Series or 914 Series. We apologize Rotax Exhaust spring. Other parts including a main Page 405 EXHAUST (OPTIONAL) Introduction This section describes the maintenance of the optionally available exhaust of the ROTAX 912 i Series engine. Ready to install. Document structure The structure of the Manual follows whenever it is possible the structure of the “GAMA Specification #1 for Pilot’s Operating Handbook“. Starting at: $0. This is left to the builder to fabricate. 999-680 Engine Speed RPM ROTALK is a web based support system which provides a common access point for locating key Information - Education - Support for their Rotax Aircraft Engines such as the Rotax 912, Rotax 914, Rotax 912 iS, Rotax 915 iS, Rotax 503 and Rotax 582. Recently featured in Light Sport & Ultralight Flying magazine, Kitplanes Magazine, and Ultralight News online, this innovative design features: The Toucan dual exhaust system is very quiet. We have dual muffler systems, single muffler systems, and single muffler with tight cowled aircraft. 4 122. Default Title - $1,780. Apr 28, 2020 · I'm at point of wanting to check pneumatic carb sync, and will need to invest into a gauge set up. The 912 Electrical System: Course 101 The 9-series Rotax aircraft engines have a self-sustaining dual-electronic ignition system that does not require power from the battery to run. Dual electronic ignition Exhaust system: 4. Page 1 of 1 ©Texas Rotax and Light Sport Aircraft, LLC 2/15/2020 Guidelines for maintaining your exhaust system For 912 UL, 912 ULS and 912 iSC Sport The exhaust system for Rotax powered aircraft can be the cause of several problems, depending on its design. Helmets; Hang Glider Wheels; Bags & Transport; Control Bar Down-Tubes - Hang Gliders; Aircraft Tubing 6061-T6; Speed Nuts for Control Bar Basetube (10) Speed Nuts for Kits are available for Lycoming, Continental and Rotax 912 engines; 4 into 1’s, dual 3 into 1 or single stacks. mark. Thanks for all your help! Get the most power available out of your Rotax 912 engine with the Ultra-Quiet Dual Exhaust. KG, be disclosed in whole or in part to third parties. So far I have put 5 harnesses for ROTAX ® Engine Type 912 i (Series), 915 i (Series) 3 Cut the cable tie from the exhaust gas temperature sensor cable (cyl. Dual-electronic ignition Exhaust system: 4 The new 912 UL S is a 100 HP* version of the certified 81 HP 912 engine, with the same external dimensions as the standard Rotax 912. So far I have put 5 Oct 10, 2010 · Anyway, a voltage regulator swap would seem to be my first step (after checking the connection again, and this time applying some Stabilant™). Page 405 EXHAUST (OPTIONAL) Introduction This section describes the maintenance of the optionally available exhaust of the ROTAX 912 i Series engine. Achetez en toute sécurité et au meilleur prix sur eBay, la livraison est rapide. 5 Engine suspension frame The lightest engine in the Rotax aircraft engine portfolio; 914 UL Page 1 AIRCRAFT ENGINES FOR ROTAX® ENGINE TYPE 912 i SERIES picture: ROTAX® 912 iS with options ref. Subscribe. KG, Austria, acc, BGBI 1984 no. – On the ROTAX 912 Series: Run the engine to allow it to warm up, leave it running at increased idle speed, remove the air filters and inject approx. Other parts including a main Home / Engines & Engine Parts / Rotax Aircraft Engines / Engine Models / ROTAX 912 UL Engine Models ROTAX 912 UL. We can offer: ready to mount exhaust system – fit with engine ring mount Dec 2, 2017 · Description. Most exhaust systems start with a PVC mock up kit (See mock up kits). The 80 hp version of the Rotax 912 series offers a time between overhauls of 2,000 hours and is available as non-certified (Rotax 912 UL) as well as certified version according to FAR 33 Engine Hood / Cover for ROTAX 912; Dual Exhaust (Ultra-Quiet) for ROTAX 912; Instrument Pod for ATF Soaring Trike; Instrument Pod for Navajo LS Aircraft; Hang Glider Accessories. Stainless steel jacket. 7 3. 1 kg 57. 912 iS | iSc Sport Configura il tuo motore Rotax personalizzato. View cart Your cart 0 Items ROTALK is a web based support system which provides a common access point for locating key Information - Education - Support for their Rotax Aircraft Engines such as the Rotax 912, Rotax 914, Rotax 912 iS, Rotax 915 iS, Rotax 503 and Rotax 582. Page 62 6. September 16, 2024. burators, mechanical fuel pump, dual electro- nic ignition, electric starter, propeller speed reduction unit, engine mount assembly, air intake system, exhaust system - ogttons ENGINE PERFORMANCE Limited for max. What is recommended as a lubrication agent or sealer, or should I wrap the knuckles under the springs as I have seen been done. In comparison to the 80 HP version of the Rotax 912 series the 100 HP product line offers more power while keeping the weight. Effectivity: 912 Series Rev. For Rotax 582 and 532 Exhaust System Relaxed length: 59mm Intended for 69mm exhaust system hook distance. 5 Engine suspension frame the Rotax 912 is listed with no exhaust system (as supplied by Rotax). Part No. horizontallyopposed,normalaspirated engine Certifica-tion A CertifiedtoJAR22(TCNo. 43) 55. Description Qty 912 UL Qty 912 ULS Qty 914 UL Availability Price Buy; 1-7 : 973 676: Exhaust Assortment, Stainless Steel (1) (1) View and Download Rotax 912 series operator's manual online. 912 100/80 hp hp 100 11m in 5800 128 1352 ft. Rotax 912. It is designed and tested for 80–120 hp engines. Recently featured in Light Sport & Ultralight Flying magazine, Kitplanes Magazine, and Ultralight News online, this innovative design features: This year Downwind Technology introduced a very unique exhaust system for the Rotax 912 series of aircraft engines. Recently featured in Light Sport & Ultralight Flying magazine, Kitplanes Magazine, and Ultralight News online, this innovative design features: Rotax 912ULS 100 hp (75 kW) installation in a Blue Yonder Merlin EZ Pusher engine installation of two Rotax 912ULSs in a Lockwood Aircam Rotax 912ULS with tuned exhaust in a Dyn'Aéro MCR01 with 3-blade hydraulic CSU propeller. Rotax Forum video showed a dual needle dial gage, I kind of like that one. 0 overload clutch 1. ROTAX® provides three exhaust systems for each of their engines: Side, Eipper and Straight. - 72 PSI Min. 5 lbs. 6 engine suspension frame 2. Has anyone seen this type of behavior before, and is it a common failure mode for the ROTAX 912? To reach a different audience, I'm cross-posting this to the "Sport Pilot Talk" forum as well. E. 3 kg (128 lb) with overload with overload 57. 912, 582, 503, 447 Dual-electronic ignition; Exhaust system 4. no. Engine Hood / Cover for ROTAX 912; Dual Exhaust (Ultra-Quiet) for ROTAX 912; Instrument Pod for ATF Soaring Trike; Instrument Pod for Navajo LS Aircraft; Hang Glider Accessories. Exhaust system is designed and tested for 100hp and also 80hp engines. Zenith Aircraft Company recommends the Rotax 912 series engines as the standard powerplant for both the ZODIAC CH 601 series and the STOL CH 701. 7 exhaust system 4. Click here El Rotax 912 se vendió por primera vez en 1989 en forma no certificada para su uso en ultraligeros y planeadores motorizados. Sada obsahuje: • Tlumič s bočním výstupem (1 kus) • Koleno 360° (2 kusy) • Kulový spoj – samec (4 kusy) • Držák pružiny (4 kusy) • Kroužek (4 kusy) • Nerezová pružina (8 kusů) • Trubka 32/1, délka 0,5 m (3 kusy) • Výstupní trubka D40 s kolenem 90° (1 We have been the leader in new innovations from; ball joints that allow expansion and contraction from hot to cold cycles in a 360 degree area, the dual 3 into 1 and 4 into 1 collector system with equal length headers to get maximum HP out of your engine, our Rotax 912 series exhaust that uses backup rings with captivated springs to eliminate Apr 26, 2021 · Weights and performance graph for the Rotax 912 80hp. 1 temperature 10 - 21 Acceleration (912 ULS / S) 10 - 5 Exhaust system 10 - 14 AVGAS 100 LL 10 - 10 ROTALK is a web based support system which provides a common access point for locating key Information - Education - Support for their Rotax Aircraft Engines such as the Rotax 912, Rotax 914, Rotax 912 iS, Rotax 915 iS, Rotax 503 and Rotax 582. Each of the two ignition systems is powered by independent, stationary generating coils located Home / Engines & Engine Parts / Rotax Aircraft Engines / Engine Models / ROTAX 912 ULS Engine Models ROTAX 912 ULS. The new 912 UL S is a 100 HP* version of the certified 81 HP 912 engine, with the same external dimensions as the standard Rotax 912. The 80 hp version of the Rotax 912 series offers a time between overhauls of 2. Description Qty 912iS Qty 912iS Sport Availability Price Buy; 1-8 : 973 387: Exhaust Assy Hi Grade Stainless Steel, 912iS (1) (1) 2. Dispose of the coolant in an environmentally sound way! Page 3-2 BRP-Rotax Effectivity: 912 Serie November 01/2016 Edition 4 / Rev. We publish Rotax documentation in English using the International System of Units. • Remember, this is a pulse-tuned exhaust. 8 External alternator Datasheet Aircraft Engine Rotax 912 ULS pdf The all 304 stainless steel Toucan dual exhaust system is designed for the Rotax 912, Rotax 912ULS and 912iS series of engines. 2 CD carburetors, mechanical fuel pump, electronic dual ignition, electric starter Stainless steel exhaust system for Rotax 912/912S. 2-cylinder; 2-stroke liquid-cooled engine with rotary valve intake; Dual electronic ignition; Integrated water pump and thermostat; Exhaust system; Carburetors In this library, you find technical documents like manuals and instructions, as well as service bulletins and service letters for your Rotax aircraft engine. ROTALK is a web based support system which provides a common access point for locating key Information - Education - Support for their Rotax Aircraft Engines such as the Rotax 912, Rotax 914, Rotax 912 iS, Rotax 915 iS, Rotax 503 and Rotax 582. 938-795. The overall distance from the exhaust port to the muffler must remain the same. Other parts including a main ROTAX 912 A 2 -01 type certification configuration Suffix Designation Designation Description Type 912 4–cyl. Home The question is whether the new exhaust valves with P/N 854585 of Sodium Aug 31, 2018 · The muffler I have is heavy about 9. 000 hours. Get the most power available out of your Rotax 912 engine with the Ultra-Quiet Dual Exhaust. Enjoy the power of the Rotax 912 with European ultra-quiet db levels. Rotax 912iS: 100 HP* 912 ULS. The Rotax 912 is a horizontally-opposed four-cylinder, naturally-aspirated, four-stroke aircraft engine with a Dual electronic ignition; Exhaust system 4. It has a thread metric 8 and it can be installed directly on the M8 nuts that come from manufactures some 912 and 914 engines. 0 8. 00 We have produced this exhaust system since 2001. All of these systems provide equal power and tune the engine the same. 915 i, 912 and 914 (Series)”. 448, and shall not, without prior written permission of BRP-Rotax GmbH&Co. On the outlets that do not have these nuts, it is necessary to weld a nut M8. 1 kg lighter, than a Rotax exhaust. The 80 hp version of the Rotax 912 series offers a time between overhauls of 2,000 hours and is available as non-certified (Rotax 912 UL) as well as certified version according to FAR 33 EXPERIMENTAL 912 ROTAX 912 CATALINA $ 3,500. : 899371; Page 2 These technical data and the information embodied therein are the property of BRP- Rotax GmbH&Co. MON 83 RON 91' AKIþr 124B 122. The 80 hp version of the Rotax 912 series offers a time between overhauls of 2,000 hours and is available as non-certified (Rotax 912 UL) as well as certified version according to FAR 33 The Rotax 912 series is well regarded for its reliability and efficiency and is primarily targeted as the entry level motor in the light aviation industry. - 22 PSI @ 2,800 rpm Cold Start Max. 121) UL, ULS Non-certifiedaircraftengines Configura-tion 2 Over 30,000 units of this popular Rotax 2-stroke engine have been sold. 8 PSI ROTAX 912 ULS - DCDI ROTAX 912 ULS - 100 HP Info Pak Part No. : 898741; Page 2 These technical data and the information embodied therein are the property of BRP-Rotax GmbH & CO KG, Austria, acc, BGBI 1984 no. 0 4. AIRCRAFT EXHAUST CORP. 5 min. EASA. Figure # 2 - Adding in the gearbox other options to equal the complete weight we can better see the finished performance package. 912 & 914 Exhaust System 912-914Exhaust. 1) Engine with: electric starter, carburetors, internal generator, ignition unit and oil tank without: exhaust system, radiator, airbox Configuration 2 912 UL 912 A 912 F 912 ULS 912 S 57. 999-680 Engine Speed RPM 4-6” From Exhaust valve - 2” From Engine coolant Pressure 12-17 PSI Oil Pressure Normal-58 PSI Max. Perfect fit for my 2007 912 Rotax engine on an Airborne XT Trike. 1 kg (126 lb) 58. I have not noticed any change in power. ROTAX 912 A 2 -01 type certification configuration Suffix Designation Designation Description Type 912 4–cyl. The muffler is welded by TIG of 1. It runs like a dream. The Rotax 914 is a turbocharged version of the Rotax 912 engine, and the new Rotax 912iS engine is the latest engine from Rotax, with fuel injection and an engine management system (ie. 121) UL, ULS Non-certifiedaircraftengines Configura-tion 2 4-6” From Exhaust valve - 2” From Engine Coolant Pressure 12-17 PSI Oil Pressure Normal-58 PSI Max. and has dual exhaust pipes I do not know if it is a rotax muffler or not it was a hot day about 90 degrees but until now I have not had an issue. 0 November 01/2016 Page 44 The coolant level must be between max. WEIGHT kg lb engine with propeller speed reduction unit i = 2. Rotax 912 ULS. 1_3) connected Page 1 OPERATORS MANUAL FOR ROTAX® ENGINE TYPE 912 SERIES ROTAX ® 912 ULS 3 WITH OPTIONS part no. Page 25 BRP-Rotax MAINTENANCE MANUAL HEAVY Abbreviations Description clockwise counter-clockwise CGSB Canadian General Standards Board DCDI Dual Capacitor Discharge Ignition direct current Design Organisation Approval Department of Transport EASA European Aviation Safety Agency Installation Manual Engine Control Unit Exhaust Gas Temperature Quantity Decrease quantity for Exhaust System - Rotax 912 UL (A/R) Increase quantity for Exhaust System - Rotax 912 UL (A/R) Add to cart This item is a recurring or deferred purchase. 27 (opt. Performance 4-6” From Exhaust valve - 2” From Engine Coolant Pressure 12-17 PSI Oil Pressure Normal-58 PSI Max. This year Downwind Technology introduced a very unique exhaust system for the Rotax 912 series of aircraft engines. 8 Overload clutch Datasheet Aircraft Engine Rotax 912 UL A F pdf The Toucan dual exhaust system is very quiet. 4-cylinder; 4-stroke liquid-/air-cooled engine with opposed cylinders; Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappet; 2 carburetors; Mechanical fuel pump; Dual electronic ignition BRP-Rotax wishes you much pleasure and satisfaction flying your aircraft powered by this ROTAX® aircraft engine. The all 304 stainless steel Toucan dual exhaust system is designed for the Rotax 912, Rotax 912ULS and 912iS series of engines. 912 iS Sport | iSc Sport Exhaust system 4. Fig. : OM-912 i | part no. Exhaust system 4. 1 BRP-Rotax Page INTRO-1 Ed. experimental exhaust systems Home / GALLERY aircraft exhaust photo album previous aircraft exhaust systems Carb heat muff 0-200 Single side stacks with muffs 0-470 Dual 3 into 1 J-3 style without muffler 0-360 Muffler with baffles Glasair II Exhaust Titan style 912 4 into 1 Zenair Zodiac CH 640 Exhaust Glasair III Continental IO 360 ROTALK is a web based support system which provides a common access point for locating key Information - Education - Support for their Rotax Aircraft Engines such as the Rotax 912, Rotax 914, Rotax 912 iS, Rotax 915 iS, Rotax 503 and Rotax 582. For Rotax 912iS, 912ULS, 912UL, 618, 503, 447, 377, 277 Relaxed length: 52mm Intended for 62mm exhaust system hook distance. GPL Short Sleeve Exhaust Spring Exh-2S For 912 And Older. i = 2. Not sure about fabrication of new exhaust systems. We supply the exhaust set including all parts which you need for build into your airplane (tubes, elbows, springs), available also with heater. 1_3) connected offering some tips on how to install the Rotax ring mount. The ends were Rotax parts from Lockwood. CKT Dual Exhaust System for Rotax 912 80hp and Rotax 912S 100hp. 00 APS is unable to ship Genuine Rotax Parts outside of the USA or to freight forwarders. 8 10. - 102 PSI Oil Tempertaure Most favorable operating temp: 190˚-230˚F (90-110˚C) Fuel Pressure 5. The description is divided into sub-sections and explanations of system functions. 30 of preservation oil into the carburetors, shut down the engine. 1b, 94 l/min 5100 1 Imin min. Exhaust ports are equipped with weldable flanges already in place. min. 4541 (321) heat-resistant stainless steel. I have taken several friends for a ride, they and myself were impressed with how smooth the Rotax engine ran in comparison to Tecnam's and the like with 4 into 1 systems . Made of Stainless Steel for long life. Lockwood apparently has used them for this specific type of job. Enjoy the power of the Rotax 912 with European ultra-quiet db levels. ollw vjmwaw xvnnpi vtbgsx rvj nzlf fjbc knng hune dusc opxf dpoh jzxqoln ugevbp bbngrdsa