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Welcome to the #1 online community of RANS builders and flyers. The RANS CLAN was started in 2007 as a way for like-minded RANS enthusiasts to get together, tell stories, share knowledge, ask questions, and offer support and assistance to fellow builders and flyers. Please join us!

Mark Pensenstadler

S-21 Special Offer!

We have decided to upgrade the standard fuel capacity of the S-21 Outbound from the original offering of 32 gallons to 45 Gallons (including header tank). For those who have already purchased a production position, the 45 Gallon system will be included. For a limited time only, new orders will also get the upgrade. However, there will be a price increase for the wing kit, which includes the fuel system. Currently the wing kit sells for $7500. After June 30th the price increases to $8300. Up until June 30th we will accept $2500 "early bird" deposits for the S-21 Outbound at the current listed price. After July 1st orders for individual kits will be accepted. With the exception of the some of the lower priced sub-kits, a 50% deposit will be required with orders for S-21 Outbound kits.

RANS S-21 Wing


RANS S-21: High Points of Dual Spar Design

Load Sharing

In a two spar wing the load is shared between the spars. In the outbound 75% of the load is on the front spar and 25% on the rear. In the case of a single strut single spar wing the rear spar has to be there anyway, so why not share the load. This reduces the weight and size of the main spar. It also positions the front spar to the leading edge of the wing that allows more advantages…read on.

Cabin Entry

The front and rear spar locations are conveniently located where you would want the door posts. This allows for big doors for easy cabin entry and cargo loading.

Fuel On Center of Gravity

The wide spar spacing allows the wing tank to be located near the center of gravity. This minimizes CG movement between full and empty tanks. The CG of the wing tank is kept as close to the wing root as possible, keeping weight near the aircraft centerline.

Pre-formed leading edge

By including the leading edge in the front spar extrusion, the need to bend and fight a sheet metal leading edge is eliminated. The extra thickness of the leading edge provides a robust structure to resist bird strikes and hangar rash.

Ease of Assembly

Perhaps the hallmark of this design is the ease of assembly. In a matter of hours you will have a completed wing. This is due to a high level of pre-fabricated parts ready to assemble, and having an overall design concept that eliminates many of the critical and time consuming elements of sheet metal wing construction.


RANS S-21 Download
click on photo for larger .pdf version


RANS S-19 Fractional Partnership Wanted



Factory built RANS S-19 LSA
120 hours TTA&E (Like new aircraft)
Rotax 912 ULS
Current Value = $85-90k


Merritt Island, Florida 32953. The A/C is kept in a hangar at KTIX (Space Coast Florida).


TruTrack II Autopilot
KY-97A Comm
KT-76A Transponder
Garmin 495 GPS

Operating Costs

$25.00 per hour
Repairs = Proportional to hrs flown
ROI = Proportional to % ownership


Bob Blaue - 3 two 1 459 two six 37 (H) or 3 two 1 749 zero zero 65 (C)