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STOL
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Assembly & Construction Photos Follow us for updates: |
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A Continental O-200 engine installation in a STOL CH 701 (amphibian). |
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Custom Continental engine installation. |
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Custom turboprop installation, using a converted Garret JFS100-13 turbine (jet) engine. |
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The custom cowl and characteristic long nose for the turboprop STOL CH 701 |
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The custom cowl for the turboprop STOL CH 701 |
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Custom VW (Volkswagen) engine installations in the STOL CH 701: |
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Custom cowl for the geared VW. |
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The engine
is a 1915 cc VW with a Valley Engineering reduction drive turning a 72 in. 3 blade ground-adjustable Ivo prop. Static thrust is 362 Ibs. at 3700 rpm. |
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Geared VW engine from Valley Engineering of Rolla, Missouri, offered for sale as a complete firewall-forward package for the STOL CH 701. |
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Geared VW engine installation from Valley Engineering on the STOL CH 701 with a large Culver prop for good STOL performance. |
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Ron Jennings' custom cowl for a Revmaster 2100D direct-drive installation. |
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This is a custom direct-drive VW conversion from Brazil - installed in a STOL CH 701. |
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Custom VW installation with
a blower compressor: VW 1.6, up to 120 BHP
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Testing the custom VW installation with a blower compressor: VW 1.6, up to 120 BHP |
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Custom VW conversion from Brazil.
Builder Julio Marques Vieira states the at VW engines puts out up to 100 hp and weight 90 kg. |
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Direct drive VW engine installation |
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Custom VW conversion from Brazil (direct drive installation). |
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Direct drive VW engine installation |
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Making a custom cowl for a Volkswagen engine installation. |
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Making another mold for a custom cowl for a VW installation. |
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Custom VW installation on a STOL CH 701. |
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Custom VW installation (direct drive) |
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The engine is the Simonini Victor II from Italy. The engine is a nickasil ceramic coated engine, rated at 92 hp. Weight is 104 lbs with radiator and fluids. It has the same bolt pattern as the Rotax 582 it replaced but is slightly wider because of the location of the starter. The original mount had to be widened to allow for this and every modified corner was gusseted in the mount and every leg starting at the gusset was increased 50% in wall thickness. The cowling bottom had to be cut to accept the exit of the tuned exhaust system. The radiator had to be moved also and turned lengthwise. The engine burns 2.5 to 3 gallons an hr. 33:1 two-stroke pre-mix . I now have nearly 100 hrs on the engine and it has been very good. Because of the low fuel burn, the 15 gallons of fuel on board has now more than doubled my flying time. There is less noise and vibration than the 582 and the TBO of the Victor II has recently been raised from 600 hrs to 800hrs by the factory. My cost for this engine was $4800 at the time of purchase. I am using the recommended prop which is a ground adjustable DUC 68". The gearbox is Simonini also and is a 3:1 internally cushioned drive. I recommend this engine for fuel, longevity and low weight for the CH 701 both as a replacement for the 582 and as a first choice low cost alternative. STOL CH 701 owner Lynn Sanderson, Conde, South Dakota
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A custom Corvair
installation by STOL CH 701 builder John Lowther (New
Zealand): "The Corvair engine is lightened, no starter, etc., and odd bits of titanium and carbon fiber also helped. The empty weight 12 kg (26 lbs.) more than a 912 powered 701." |
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Running-up the custom Corvair installation. |
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A different custom Corvair installation in a STOL CH 701. |
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Fitting a custom Corvair installation to a STOL CH 701. |
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A custom Nissan auto conversion: Nissan MA 12 |
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Custom Rotec radial engine installation on a STOL CH 701 (tail-dragger gear configuration). |
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Custom Rotec radial engine installation on a STOL CH 701 |
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Custom Rotec radial engine installation on a STOL CH 701 (tricycle gear). |
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Custom Rotec radial engine installation on a STOL CH 701 (tail-dragger gear configuration). |
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Suzuki 1.3 Custom Engine Installations |
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Suzuki 1.3 EFI
A custom Suzuki/Geo automotive conversion and installation in a STOL CH 701 aircraft. |
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Another view of the Suzuki 1.3 EFI engine.
Suzuki/Geo automotive conversion. |
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SUZUKI
1.3L using the Raven
1300 SVS Redrive, as installed on Rick Roberts' STOL CH 701.
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SUZUKI 1.3L using the Raven 1300 SVS Redrive |
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SUZUKI 1.3L using the Raven 1300 SVS Redrive |
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SUZUKI 1.3L using the Raven 1300 SVS Redrive |
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SUZUKI 1.3L using the Raven 1300 SVS Redrive |
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SUZUKI 1.3L using the Raven 1300 SVS Redrive |
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A Suzuki auto conversion engine custom installation in a Zenair STOL CH 701 |
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A different installation and conversion of a Suzuki/Geo automotive engine for the STOL CH 701. |
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...And More Custom Engine Installations: |
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Custom JPX (85-hp) engine installation. |
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Custom engine nosebowl cowl. |
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Custom Subaru EA-81 engine installation |
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Custom cowl for a Subaru installation |
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Richard
Baner of Eureka, Illinois writes: "My planes been complete for many years now, and I've tried several engines out: first a 2180 Great Plains VW, then a Rotax 503, then a stock Subaru EA-81, and finally a modified Subaru EA-81 with computerized fuel injection and airmotive electronic waste spark dual ignition." |
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A Russian engine (?) |
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Custom Hirth F30 installation |
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Hirth F30 engine installation |
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custom engine installation |
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custom engine installation |
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NEW
100-hp Rotax 912S Firewall Forward Installation Package with rear ring
engine mount for smoother operation.
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How-To Engine DVDs from HomeBuiltHELP.com:
Other hands-on building DVDs from HomeBuiltHELP.com |
Note that alternative engines are not directly supported by Zenith Aircraft Co., and will affect the performance and specifications of the aircraft. Click here for more info.
Most these images show customer-built aircraft which have been modified without the designer's specific approval. Modifications affect the specifications and performance of the aircraft.
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© Zenith Aircraft Company: 2013-05-06
