The S-21 Outbound with the Rotax 100 hp engine. The Titan engine version has not yet been flight tested but will be soon.
The S-21 Outbound with the Rotax 100 hp engine. The Titan engine version has not yet been flight tested but will be soon.

The long awaited RANS S-21 Outbound is finally here. It features all-metal construction with match-hole drilled skins and pull rivets throughout. The main structure is a chromoly steel cage with aluminum skins. The structure behind the cockpit is all aluminum. Interior layout is side-by-side and is similar to the existing S-20 Raven. The all-metal design adds about 70 pounds compared to a similarly equipped S-20, but the build time is cut roughly in half. All holes are finish-drilled and matched making it possible to simply cleco things together and start pull riveting almost immediately. The S-21 can accommodate all Rotax 4-stroke engines, but the 912 ULS is preferred by RANS for its value and ease of installation. As an option, the Titan IO-340 engine making 180 hp is also available. The larger engine greatly improves climb performance and adds about 30 knots to the cruise speed, admittedly at a cost of about twice the fuel consumption, according to RANS. These performance numbers will be greatly affected by the prop selected.

With the Rotax 912 ULS, engine the S-21 comes in at about 820 pounds empty, making it well-suited for light sport use. With the larger Titan engine, empty weight climbs to 985 pounds, pushing it out of the light sport category for all practical purposes. However, a gross weight of 1800 pounds is well-justified by the design, giving it a great useful load.

The S-21 complete kit is available from RANS Design, Inc. for $29,500 less firewall forward and electronics. The S-21 Outbound can be built as either a trike or a taildragger.


Previous articleOne Week Wonder – Day 2 – Riveting Opened to Everyone
Next articleTQ-Group Introduces Avionics Product Range at AirVenture
Dave Prizio
Dave Prizio has been plying the skies of the L.A. basin and beyond since 1973. Born into a family of builders, it was only natural that he would make his living as a contractor and spend his leisure time building airplanes. He has so far completed four—two GlaStars, a Glasair Sportsman, and a Texas Sport Cub—and is helping a friend build an RV-8. When he isn’t building something, he shares his love of aviation with others by flying Young Eagles or volunteering as an EAA Technical Counselor. He is also an A&P mechanic, Designated Airworthiness Representative (DAR), and was a member of the EAA Homebuilt Aircraft Council for six years.


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.