Hirth f33 engine specs. The Breese is powered by a Hirth F33, 28hp single cylinder 2-stroke engine. 2:1 and 2. Simple and modern 2 stroke engine from proven manufacturer. O. This engine series offer a time between overhauls of 1000 hours at 75% power and is Sep 3, 2019 · Aerolite 103, Hirth F 33 Powered Aerolite, Part 103 Ultralight Aircrafthttps://www. Crew: one; Empty weight: 27 kg (60 lb) Fuel capacity: 10 litres (2. 1 General description of the engine The engine F 33 A/B (Illus. National origin. $1,400. Variants 254 The basic ultralight fuselage design, for powerplants of 28 to 45 hp (21 to 34 kW). General characteristics. com/lightsportandultralightflyer - Help support the Light Sport & The 32 Series air cooled two-stroke engines offer the highest power-to-weight ratios available in the 65-horsepower market. Based on the world-renowned 4103 engine – which has flown more than 20,000 missions in theatre across the globe – the new 41 Series has been updated with the latest in engine technology providing a Jul 28, 2023 · The Nano is still restricted by Part 103 regulations to 55 knots airspeed. Produced. Makes the best choice for use in light and ultralight aviation, powered parachutes. The cylinder consists of an aluminium alloy with wear-resistant tread alloy. Feb 6, 2011 · The basic airframe is called the 254, named after the weight limit of Part 103. 99/month, you can immerse yourself in this dynamic community and unparalleled treasure-trove of aviation knowledge. F30ES is the F30S engine equipped with fuel injection. This is an excellent replacement alternative to the 50hp rotax 503 offering several advantages including lower price, lighter weight, better warranty, and lower crusing rpm, which means less noise, less vibration, lower fuel rate, and less Hirth offers innovative two-stroke propulsion systems with a history of engineering excellence. The F33s are some of lightest single cylinder engines you'll find anywhere model: f-33 engine type:2 cycle, cylinder bore:76 mm stroke:69 mm displacement:313cccompression:9. Type. It features a paraglider-style wing, single-place accommodation and a single 17 hp (13 kW) Solo 210 or 28 hp (21 kW) Hirth F33 engine, depending on the model in pusher configuration with a reduction drive and a 122 cm (48 in) diameter two-bladed composite propeller. Ask About this product. P. $2400 labor + parts. start. Hirth engine Empty weight: 108 lbs (49 kg) MTOW: 441 lbs (200 kg) More information! The Breese XL aircraft is a single seat ultralight aircraft, FAR 103 approved. Includes written warranty, manufacturers specification inspection, de-carbon, fuel system, reduction unit & exhaust system & A&P log Entry. Custom Captcha *. We seemed to max out performance wise at just a shade over 5750 The F23 -made in Germany- is the most powerful motor for trikes <120 kg. Thrust isn't measured (and of course is propeller dependent). I can't remember the Hirth twins but the 1971 Puma 634 my dad sold new did not have that black decal on the recoil. Jun 24, 2017 · The Hirth engine has a history dating back to 1917, first making gears and then crankshafts. patreon. 30 HP; Air Cooled; 2 Hirth F-33 2 cycle 28hp. Dollars, as per Powerfin Inc. 00 In Stock The 42 Series air cooled two-stroke engines utilise advanced closed-loop control, optimising performance for extreme environmental conditions. 34 shipping. Contact JDT for more information about Mini-Max kits and options. B. 0:1 and 2. The 3202 produces 55hp at only 5500rpm while building an impressive torque of 52ft-lbs. Description: The engine F-23 of Hirth Motoren GmbH & Co. You can rely on this indestructible 500 cc engine, it is powerful and compact. What I've seen with Hirth is that you have to be a good enough mechanic to set up the carburetor and make it run. Mr_Intensity. Sad that installing a 1/2 VW engine increases the price on an ultralight by $15k. State. 4102 41 Series. Our young and innovative team of engineers combines at Hirth Engines state-of-the-art research and technology facility near Stuttgart with the production knowledge of more than 80 years in building light two-stroke engines. The Hirth 3701 is an in-line three-cylinder, two-stroke, carburetted aircraft engine, with optional fuel injection, designed for use on ultralight aircraft and small homebuilts. Single Cylinder Engine Models 191R - 192R - 193R - 200R Section 1. The Hirth F-263 is a twin cylinder, in-line, two stroke, carburetted aircraft engine that was designed for use on ultralight aircraft. Hirth 634 Vintage Snowmobile Engine, Turns Over Chaparral Arctic Cat 171 R4E. Can be upgraded to 1500R or 1600R. This powerful combination of heritage, excellence and creativity has kept Hirth at the forefront of a competitive industry and market leader for two stroke propulsion systems. Maybe I'm falling prey to the hype, but Ready-To-Fly Aerolites are completely assembled, test flown and then disassembled for transport to you. Rely on the performance and efficiency built into every Hirth Engine, and on NWUAV’s commitment to ensuring your propul-sion solution is reliable, cost-effective, and well maintained. Ideally suited for use in light and ultralight aviation, hovercraft, gyro and helicopters and all applications where weight could be an issue. Hirth 3202 the biggest little engine available. Also Cooling: Free air cooled. $6,350. Zip Code. The Rotax 503 & 447 are no longer being produced, but if you can pick up a second hand engine or re-furbish one, they are a good engine option. Weight: 78lbs, including reduction unit, full exhaust, and electric start or71lbs with recoil start reduction unit and full exhaust. Superlite Jun 23, 2019 · In case Hirth’s numbering system may confuse you, F33 is a super light single cylinder engine where F23 is a horizontally opposed twin cylinder model producing 50 horsepower. $7,025. 5:1 103 52" 17 or 18 Hirth F-23 50HP – 2stroke. SD-1 is single seat modern microlight (SSDR). The bolts they sell are also $134. Hirth Engines GmbH Max-Eyth-Straße 10 71726 Benningen am Neckar Germany. Jul 24, 2019 · The aircraft being built in the ultralight forum tent this week sports a Hirth F33 powerplant, harnessing 28 ponies. The kit price, with the new Hirth engine is 26,500 Euros ($29,367 in U. So pretty even on paper, though I have to say I love the 30 HP Hirth 33 Series Engine / F33 AS. this is one of the lightest singles you'll find anywhere. The Hirth F-23 is a twin cylinder, horizontally-opposed, two stroke, carburetted or optionally fuel injected aircraft engine designed for use on ultralight aircraft. It was manufactured by Hirth of Germany. This engine series offer a time between overhauls of 1000 hours at 75% power Jan 3, 2016 · Jim, if you go in with the expectation that the Hirth engine will last 1000h, you sure to be disappointed. The cylinders consist of an aluminium alloy with wear-resistant tread alloy. Hirth. 2702 2 cycle 40hp. F33 AS 33 Series. Cranks are not the same, the 634 has a "pork-chop" or "T" crank webbing and the red baron is full circle. Cooling: air Ignition : CDI Carburated or EFI Propeller: Sandera 1400 3B, dia 1,4 m, three blade, carbon composite, ground Hirth 3701. The 41 Series air cooled two-stroke engines utilise advanced closed-loop control, optimising performance for extreme environmental conditions. 00 Add to cart More. Dennis states that 28 hp is plenty of power, able to haul his 225-pound body upwards of 500-600 fpm in climb, with a cruise of 50-55 mph. MZ 201 (45 HP, High Output, Low RPM) $10,270. Comment or Message *. com Nov 17, 2014 · Ultralight Engine Options. The Hirth F-36 is a single-cylinder, two-stroke, carburetted aircraft engine designed for use on ultralight aircraft, especially powered paragliders and ultralight trikes. 40lbs w re-drive 45lbs elect. At 220, the climb rate is about 600 feet per minute, and cruise speed about 55 miles an hour. The F33 is the exact engine that… Sep 25, 2020 · Discussion of replacing a Rotax 277 engine with a Hirth F33 engine on a Team Mini Max 1030 R. - 40lbs W/re-drive - 45lbs W/elec. as the Hirth 2706. Germany. Box 706, Santa Margarita, CA 93453. by HAPPYDAN » Sun Sep 17, 2017 2:42 pm. 2:1, & 2. Call us (or the engine vendor) if you need installation information for any other type of engine. Reduction Units: Multi V Belt drive - 1. #post_contentZipster ultralight bi-plane, Raceair Designs. The original Mini-Max. Three-cylinder two-stroke aircraft engine. The tricycle-gear airplane is called the Trike, but it can’t take the big engine, either. 2 imp gal; 2. 2-stroke. This low rpm operation equates to the smoothest and quietest running power plant you'll will find anywhere. In Stock Add to Compare. Factory recommended TBO is rated at 1000 Hrs. The Hirth F-30S is the high performance version of the F30 80hp engine. ) Drive Coupling: Optional centrifugal clutch available (can not be used with Mar 9, 2012 · NOTE: This post describes the process for mounting a Hirth F33 (28HP) engine to a Belite Ultralight aircraft. $6,780. With 25ft. The aircraft carriage is built from powder coated aluminium with some steel parts. Hirth Engines have been produced since the beginning of powered flight and our engineering excellence continues with performance and efficiency as the driving force in all our products. It is manufactured by Hirth of Germany. A true red baron crank is solid steel but there are others that claim they came stock with epoxy and metal bands around a 634 crank to make it a full circle. No quotation marks. 5:1 ratios. Specifications Engine: Hirth F33 (25 hp) More by Gimi Poland. Recoil Start and Gearbox (with clutch) $7,550 Re: Rotax vs Hirth. Ready-To-Fly Aerolites are completely assembled, test flown and then disassembled for transport to you. Engine Type: The 23 Series is an air cooled two-stroke engine that makes an excellent choice for light aviation devices weighing up to 120kg. Mid-wing, Hirth F-33 single cylinder engine, Part 103 Ultralight. Fan shroud was normal dull gray. , weighing in at 249 lbs complete with wheel pants. of torque, this engine packs enough punch to spin up the largest of props on your Backpack parachute or legal 103 ultralight. 41 Series / 4103 42 Series / 4201 33 Series / F33 AS Both engines have the same bore, stroke and compression ratio as the three-cylinder in-line liquid-cooled Hirth 3701 and the bore, stroke, compression ratio and displacement of the twin-cylinder Hirth 2704 and Hirth 2706. is an air-cooled diaphragm-controlled one-cylinder 2-stroke engine. jefferson. Hirth's High Torque low rpm engine. 1-2) of Göbler-Hirth Engines Ltd. An air cooled two-stroke engine offering 1000 hours TBO at 75% power, the 33 Series is a great propulsion solution for use in light and ultralight aviation, powered parachutes, and other applications where weight is significant. The Hirth 2704 and 2706 are a family of in-line twin cylinder, two stroke, carburetted aircraft engines, with optional fuel injection, designed for use on ultralight aircraft and especially two seat ultralight trainers, single seat gyrocopters and small homebuilts. Address Line 2. Operating in an Rpm range 1000 Rpm less than conventional 2 cycles results in a very smooth and quiet running engine with impressive power. Hirth 2702 Aircraft Ultralight Engine w/ G50 Gear Box & Electric start. 1. Standard engines tested are the 28 hp (21 kW) Hirth F33, the 50 hp (37 kW) Hirth F23 two-strokes, the 24 hp (18 kW) or 33 hp (25 kW) Briggs & Stratton Vanguard (designated SE24), or the Verner JCV-360 powerplants. The other flight configurations of climb and cruise are basically irrelevant for these types of vehicles. For those in the 30-horsepower market, the 33 series offers the ultimate power-to-weight ratio. com/lightsportandultralightflyer - Help support the Light Sport & Ultralight Flyer by becoming a Patron, contributions start at as littl Hirth F-30 ES Fuel Injected 110 HP . In flight steering is accomplished via handles that actuate the canopy brakes, creating roll and yaw. For instance, a powered parachute requires a very specific design to maximize static thrust. See all prices here for Aerolite 103 airframes, engine choices (several), and options. As I have become frustrated with the Sport Pilot licensing route, but still enjoy flying, this presents new possibilities. Hirth F-36 with Electric start & Re-Drive for sale. Suitable for heavy pilots and operation from short or high altitude airfields. 1. City. It features a paraglider-style high-wing, single-place or two-place-in-tandem accommodation and a single 28 hp (21 kW) Hirth F-33 engine in pusher configuration. The aircraft has a steerable nose wheel, single surface Dacron covered wings. S. P: +49 7144 8551 0. Is Hirth’s 28-horsepower F33 enough power for bigger pilots, say someone weighing 250 pounds? Dennis answered. Sets world-class standards in its power-to-weight ratio for the 50-horsepower market achieving performance and reliability unmatched in the industry. com www. 00. Embark on your journey now! 10 - 50kg for light aircraft 2-stroke. The JK-2 kit can be assembled in a lazy weekend, with only 19 bolts to install. The boxer design has always been tried and tested in aircraft construction because it offers a complete mass balance. The values of speeds are about 3% lower for TG and TGC version and 2 % lower for full XL cabin hood. Weight: 28lbs, including reduction unit, exhaust, and recoil start. 5:1 ratios available. Features such as a unique aerodynamic strut brace system, steerable nose wheel and a great price of just under Briggs & Stratton (30hp) (V-Twin 4 Stroke) ROTAX 503 & 447. Recreational Power Engineering has been the factory authorized North American distributor for Hirth aircraft engines since 1993. Opposed pistons cancel out each others internal inertia forces resulting Hirth 2702 2 cycle 40hp. The F-23 puts out an amazing 50hp at only 6150rpm and provides 42ft-lbs of torque. May 28, 2019 · https://www. I have a set of Affordaplane plans. Kermitt 1 Paratrike w. It has one of the highest power to weight ratio available on the 30 HP engine market. It was manufactured by Hirth of Germany, but was discontinued about 2001. Like it's big brother, the 3202 it's a low RPM powerhouse, at an incredible 5500 rpm this little engine is producing 40hp and it's pumping out 39ft/lbs of torque at only 4500 rpm. The new Hirth 2706 is now upgr The F33 B/BS is an air cooled, reed valve controlled 1-cylinder-2-stroke engine with diaphragm carburetor and Nikasil coated cylinder. 99/year or $12. I'm pretty sure of that. May 1, 2023 · Unearth a wide-ranging collection of general and kit plane aviation subjects, enriched with engaging imagery, in-depth technical manuals, and rare archives. Best suited for use in light and ultralight aviation, hovercraft, fire pumps, gyrocopters and all applications where weight could be an issue. 36 each which seems way too much. 4201 Jul 23, 2012 · There was a Cat decal on the recoil of most of the 1967-68-69 Hirth singles I've seen. Electric Start and Belt Reduction. This engine series offer a time between overhauls of 1000 hours and View more detailed information. It is noted for its extremely small equipped weight of 28 lb (13 kg) including exhaust system, reduction drive and carburetor. Hirth Engines is acknowledged globally for unmatched engineering solutions achieved through industry leading German expertise, technology and innovation. Hirth 3503 70 horsepower water cooled aircraft engine - Recreational Power: Recreational Power, the U. 03-13-2014, 01:02 AM. Earthstar Aircraft. The 2702 produces 40 hp at only 5500 rpm while building an impressive torque of 39 ft lbs. With nearly l hp to every pound the F30 has one of the highest power to weight ratios available. Both are in the 45 - 50 hp range, both fairly low revving for 2-strokes, with the MZ particularly impressive at a quoted 45hp at 4700 rpm, both offer dual ignition, & both are a similar weight when fully fitted (around 30 kg). At Hirth we continually develop state-of-the-art technology applied to the proven two-stroke principle. Hirth F33 Reliability. Special design-High Torque/Low Rpm Engine. We provide sales, service and parts for Hirth engines, which are manufactured in Germany. The Zipster Ultralight Biplane packs a lot of performance in a small package. F33 A/AS 33 Series. Aerolite can also sell you a 40 hp engine (the newly discontinued, but popular Hirth 2702 The Apis-Bee differs from the early Apis by the incorporation of 133 improvements, including: retractable landing gear, steerable tailwheel, ballistic parachute, enlarged cockpit, new lighter Hirth F33BS engine that can be removed quickly and has faster engine extension and retraction, a redesigned propeller, lower vibration levels and better Dec 18, 2010 · Re: 634 vs 650 red baron hirth? « Reply #1 on: December 18, 2010, 05:31:51 pm ». As is the case with all paramotors, take-off and landing is The F33 A/AS is an air cooled, reed valve controlled 1-cylinder-2-stroke engine with slide carburetor and Nikasil coated cylinder. Layout. This engine series offer a time between overhauls of 1000 hours and Hirth F-23. 250 watt/20 amp alternator standard. When equipped with the Hirth F 33 or Compact Radial Engines MZ34 engine the Zipster is a legal part 103 ultralight in the U. Hi Andrew, Why are you looking at the 503 instead of the 582 which gives the same HP. Nano cockpit with optional EFIS screen (analog Airspeed Indicator below, between the rudder pedals). All with a total weight of only 78lbs. Kit and Engine Package Prices: Price. We use Viton crank shaft seals & O-Rings for Rotax & Hirth that Never leak! Double your Rotax 2-cycle T. For a nominal fee of $99. We support several different types of engines, all are similar in mounting techniques. The 23 Series is an air cooled two-stroke engine that makes an excellent choice for light aviation devices weighing up to 120kg. If you are looking for higher performance in the experimental category, the A variety of engines may be used such as the Hirth F33, Hirth F-23, Zanzottera MZ 34, 1/2 Volkswagen air-cooled engine and the Zanzottera MZ 201. Twin cylinder two-stroke aircraft engine. oef11 (72) 0%. A Minimum cost aircraft, requiring a Minimum of building space, time or skill. The 33 Series air cooled two-stroke engines oer the ultimate power-to-weight ratios available in the 28-horsepower market. Hirth F33 (28 HP) $7,404. New (Other) $5,599. KG is an air-cooled, Piston port-controlled opposed two-cylinder 2-stroke-engine. Hirth engines are used widely throughout the world on ultralights, powered parachutes, experimental aircraft, gyrocopters Hirth. If properly installed and maintained, you should receive many years of reliable service from the engine. The Power of Hirth. at only 4500rpm. The Hirth 2702 is ideal for single seat ultralight aircraft. Very simple design. Dandar explained that in the 1930’s when Germany was building up its military capabilities, Hirth started making aircraft engines. Hirth model 3202 2-cycle 55 horsepower avaition engine is smooth and quiet running with impressive power, offering a lower fuel rate and increased TBO. Hirth Engines offer outstanding quality combined with unmatched performance and efficiency. They seem to often ship the engines with the wrong jets in the carbs an both of the pilots I know who've bought new Hirth engines have had to spend several hours and a few $$ buying and trying Engine Model. has commissioned the services of professional aerodynamic engineers in order to produce a number of specific designs. for light aircraft. 5:1 103 59" 10 or 11 Hirth F33 28 2. $900-$1100 labor + parts. General instructions for engine maintenance, core and operation 1) Keep all exposed surfaces and ports of the engine c lean The openings at the starter housing must be kept clean at all times, since the cooling air enters there. The Rotax 447, Hirth 2702, Zanzottera MZ 201, Simonini Victor 1 Super, 2si 460 and Half VW can also be used. This engine series offer a time between overhauls of 1000 hours and is fit to take on any challenge in the future. It features a parachute-style wing, single-place accommodation, tricycle landing gear and a single 33 hp (25 kW) Hirth F33 engine in pusher configuration. The 33 Series air cooled two-stroke engines offer the ultimate power-to-weight. The aircraft was designed in the 2000s as a paramotor with greater power to lift heavier pilots and for two-place flying. Reduction Units: 4 V belt drive available in 1. Makes the best choice for use in light and ultralight aviation, powered parachutes The 33 Series air cooled two-stroke engines o er the ultimate power-to-weight. +$226. Makes the best choice for use in light and ultralight aviation, powered parachutes and all applications where weight could be an issue. Free air Cooled by prop blast. Page 6 Description 1. info[at]hirthengines. 2:1 reduction drive, 20 kW (27 hp) Propellers: 2-bladed, 1. Hirth 2704. hirthengines. or Best Offer. By combining this with electronic direct injection, we have achieved fuel consumption and smooth-running characteristics It features a paraglider-style wing, single-place accommodation and a single 17 hp (13 kW) Solo 210 or 28 hp (21 kW) Hirth F33 engine in pusher configuration with a reduction drive and a 96 to 122 cm (38 to 48 in) diameter two-bladed composite propeller, depending on the model. Manufacturer. I just received a September copy of SPORT AVIATION, in which there is an excellent article regarding the Aerolite 103. 8:1, 2. Reliably engineered for ease of maintenance, this engine series oers a time The Hirth F33 is another good option. Ideally suited for powered parachutes, light experimental aircrafts and ultralights and all applications where weight is an issue Jan 14, 2014 · Front runners at the moment are the Hirth F23 and the MZ-201. Jun 12, 2022 · The Hirth performance on a F-33 chart runs up to 6700 engine rpm, but has a plateau from 5500 to 6500 engine rpm where hp remains pretty constant and torque actually decreases slightly and fuel consumption increases 27%. 12-17-2013, 08:44 AM #3. Up or down PPS power. Reduces total weight by 10 lbs. Hirth F23 – 50hp. MZ-34 - (Discontinued, but all parts still available) MZ-100 - (Discontinued, but all parts still available) MZ-201 - (45 HP) Recoil Start and No Belt Reduction. For sale as plans-only, sub-kits and complete standard kit. Brand New Hirth 3203 2 cycle 65hp Engines with Warranty $3,950. Unless they offer some kind of unlimited warranty for that time, it's just a number. Hirth 2702 Engine+ G50 Gearbox+ Electric Start WGERMANY. Direct Drive coupling also Available. Reduction System: 4V belt drive available 1. 32 Series. But for the earlier Hirth twins I'm thinking that black decal might have been on there. (Up or down pos. This option must be special ordered and adds 2 pounds to total weight. 912, 914 series approx. Based on the well-known S1211 and S1212 engines – which have been proven in theatre – the new 42 Series have been updated with the latest in engine technology providing a top shelf propulsion system The 27 Series air cooled two-stroke engines oer the highest power-to-weight ratios available in its horsepower range. Price. Specifications (Spider F33) Data from Bertrand. One little powerhouse of an engine. If you want to install the 50-hp Hirth F23, which weighs 30 pounds more than the 28-hp F33, you need a lighter airframe to make weight, and that airplane is called the SuperLite. 25 m (4 ft 1 in) diameter Apr 3, 2007 · Are they trying to scam me or is that the good price for the engine. at only 4500 rpm. Quick view. The fuel tank capacity is 10 litres (2. and all applications where weight could be an issue. This engine can handle any part 103 ultralight and most single seat experimentals. The plans show a Rotax 477 engine mount, but I understand that Rotax (along with everyone else) has gotten out of Jun 16, 2018 · After a few tweaks the engine is tuned pretty close to perfect hitting 6000 RPM at full throttle and keeping the CHT and EGT below maximums. Cooling: Free air Cooled by prop or slip stream (Optional fan cooling available on special order) Weight: 35lbs including exhaust sys. @ 75% power. The 2702 is our small high torque low RPM engine. ratios available in the 28-horsepower market. Both the 3502 and 3503 are equipped with dual Bing 34 mm slide carburetors or optionally electronic fuel injection. 10 - 50kg. Airboats Engine HP Reduction Prop Diameter Pitch Honda/B&S 13 direct drive 103 36" 13 Honda/B&S 20 direct drive 103 42" 15 or 16 Honda/B&S 20 direct drive 104 42" 14 Generic Engine HP Reduction*** Prop Diameter Pitch Hirth F33 28 2. [1] If you prefer an opposed cylinder engine, then this one's for you. lbs. Aerolite Ultralight Aircraft is the home of the Aerolite 103 and Aerolite120 aircraft available in kit form or ready to fly. On this lightweight aircraft, even with a beefier pilot, an F23 Aerolite is going to perform exceedingly well. 35HF 35HF Series. Recoil Start and Belt Reduction. 3503 35 Series. Cooling: Free air Cooled by prop blast. May 2002 - present. 1-1 and 1. ratios available in the 30-horsepower market. I got very different prices from two different companies and was wondering what a birth f33 should cost. The main jet was We offer light two-stroke engines, with less moving parts and superior power. Type "ultralight" in the box below. 6 US gal). 6 US gal) Powerplant: 1 × Hirth F33 single cylinder, two-stroke, air-cooled aircraft engine, with a 2. Rotax & Hirth 2-cycles approx. “The F33 is good for Pilots up to about 220 pounds. Phone: (805) 438-5235 . distributor for the Hirth line of aircraft engines unveiled their latest additions the 3502 and 3503. Complete Aerolite 103 Quick-Build Airframe Kit. After the war, Germany wasn’t allowed to build aircraft The 23 Series is an air cooled two-stroke engine that makes an excellent choice for light aviation devices weighing up to 120kg. 05 that seems very expensive but I could be wrong. I would have posted this in the Homebuilt Forum, but I figured that since I am asking about an Ultralight engine, I should post here. The 33 Series air cooled two-stroke engines offer the ultimate power-to-weight ratios available in the 30-horsepower market. The home of 2-Stroke engines. $17,950. The most powerful engine installed. At only 35 lbs. The Hirth 3202 and 3203 are a family of in-line twin cylinder, two stroke, carburetted aircraft engines, with optional fuel injection, designed for use on ultralight aircraft, especially two seat ultralight trainers, gyrocopters and small homebuilts. Another company from the US quoted me $6,635. Some of the Luftwaffe had Hirth four-cycle aircraft engines. 15 watchers. My friend here in Austalia is building a Challenger clip wing special 11 and bought a Hirth 2706 motor 4 years ago when he started to have his Challenger built. anbkbrggytfenfsxreyi