radial aero engine national origin germany manufacturer zoche the zoche aero diesels are a trio of german prototype diesel radial aero engines intended for light aircraft . the zoche 1 zo range comprises three radial engines namely the zo 01a a cross 4 ; the zo 02a a twin row cross 8 ; and the zo 03a a v twin . 2 power outputs are 150 hp 112 kw 300 hp 224 kw and 70 hp 52 kw respectively . the zoche engine gestation period has lasted some 20 years ; and whether or when production may start is unknown . contents 1 design and development 2 zoche engine variants 3 see also 4 references 5 external links design and development edit the founder of the project is michael zoche who claims that the zo engines will have the following advantages they will be lightweight compact and perfectly smooth ; low fuel consumption ; high power to weight ratio ; the lubrication system will allow aerobatics ; diesel fuel injection so no carburetor icing ; direct driven generator so no drive belts ; good reliability through a low part count and absence of poppet valves ; pneumatic starting obviates both electric starter motor and heavy starter battery ; complete absence of rubber hoses ; cheaper parts through modularity ; reduced fire risk compared to avgas ; good power output even at altitudes up to 9 000 feet 3 000 m . 2 the engines will also have the classic appearance that is suitable for some aircraft types . the aopa website explains the cross 4 zo 01a as follows the radial design was chosen for its ability to be effectively air cooled and 100 % balanced at all rpm with a simple counterweight system . all four connecting rods are attached to a single crankshaft throw . this prevents any crankshaft twisting which is hard to balance out in opposed configuration engines . zoche engines use a pneumatic starting system that does away with the need for a heavy duty starter and battery system . 3 zoche zo engines are modular and are all direct drive air cooled radial two stroke diesels with up to four cylinders per row . they feature two stage charging turbocharger and supercharger direct fuel injection and intercooling . propeller rotation is clockwise viewed from the cockpit . engine weights below include starter generator hydraulic propeller governor turbocharger and supercharger and oil and fuel filters . engine mountings are attached to the cylinder heads . engines are to be certified to jar e and far 33 and a tbo of 2 000 hours is anticipated . a zoche engine has run effectively in wind tunnel tests 4 but zoche seem barely any closer to production than they were a decade ago . experimental engine manufacturers seem to experience difficulties in proceeding beyond the prototype stage . the lambert mission 212 5 a kit build 4 seat aircraft from belgium that is nearing completion of pre production testing was initially designed around the zoche zo1a motor ; but with the non appearance of the zoche lambert have been obliged to select other engines the deltahawk dh200a4 or dh180a4 or the xp 360 engine . 5 zoche engine variants edit zo 01a single row cross 4 2 660 cc 162 cu in max 150 hp 112 kw 2500 rpm 84 kg 185 lb fuel consumption 21 litres h 75 % power . 2 zo 02a double row cross 8 5 330 cc 325 cu in max 300 hp 224 kw 2500 rpm 123 kg 271 lb fuel consumption 42 litres h 75 % power . 2 zo 03a v twin 1 330 cc 81 cu in max 70 hp 52 kw 2500 rpm 55 kg 121 lb fuel consumption 10 litres h 75 % power . 2 see also edit comparable engines thielert centurion wilksch airmotive wam 100 100 hp wam 120 120 hp and wam 160 160 hp diesel air 100 hp 75 kw twin cylinder two stroke opposed piston engine continental o 300 continental o 360 ulpower ul260i midwest ae series related lists list of aircraft engines references edit http www.zoche.de a b c d e http www.zoche.de zoche brochure.pdf archived copy . archived from the original on july 7 2012 . retrieved july 31 2012 . http www.zoche.de zoche video.html a b http www.lambert aircraft.com eng indexen.htm external links edit www.zoche.de zoche site patents 1 de 4020826 2 ep 0231223 3 us 4781028 4 us 5197416 japan 63 500818 retrieved from https en.wikipedia.org w index.php title zoche aero diesel & oldid 739317910 categories air cooled aircraft piston enginesaircraft radial diesel enginesaircraft piston engines 1990 1999 navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages deutsch edit links this page was last modified on 14 september 2016 at 00 43 . text is available under the creative commons attribution sharealike license ; 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