Dakota Cub’s Extended Slotted Wing

Flight security is something all pilots talk about. They Dwell it, settle for it, and always hope to choose it within their working day-to-day lives inside the aviation entire world. With the Tremendous Cub fanatic, the Prolonged Slotted Wing from Dakota Cub gives pilots the chance to greatly enhance their protection margin in addition to boosting the climb overall performance in the aircraft.

Envision flying your Tremendous Cub at a 918 kiss significant angle of attack With all the airspeed indicator reading twenty mph, then rolling into sixty-degrees of bank and initiating a climbing spiral although deciding on a power placing that is under complete throttle! That’s The standard exhibition that sells the Dakota Cub Extended Slotted Wing. The next most mentioned excellent of this wing is the ability to have full flight Handle authority at large angles of attack. No much more delicate controls, plopping it down, or wing drop on stall.

Mark Erickson, the founder of Dakota Cub, began his mission during the 1990’s. All he wished was a Cub rib. Practically nothing from Piper was offered at an affordable cost and Because the Piper ribs ended up so fragile, he decided to Develop his have. He applied fashionable-day technologies to an outdated Piper wing which was originally designed for that YL-fourteen liaison Variation on the J5C Cub. The YL-fourteen wing was a slotted wing. Based on Erickson, there were only fourteen of these aircraft developed ahead of the finish of Globe War 2. They were specifically engineered for short just take-offs of 100-toes and climbs with superior angles of assault. There are only two of these still during the air nowadays – a person in Spain; one other in Nebraska.

The Dakota Cub Prolonged Slotted Wing has a number of variances when put next to the initial Cub wing plus the L-fourteen wing for that matter. Erickson revised the initial Piper US35B airfoil utilized for the L-fourteen. He developed a personalized “T” shaped extrusion with the exact Proportions that when Utilized in building a truss-model rib, is lighter, simpler to operate with, and a lot more sturdy than the initial wing. Erickson received a STC for the new wing in 1993.

Erickson’s new rib only adds seven lbs to the load of each and every authentic Piper wing. The new wing is structurally examined to in entry of 2,200 lbs, having said that, the STC restrictions the gross excess weight to one,750 lbs for the first wing or two,000 lbs for people wings equipped Using the Wipaire One Ton Cub STC. This synthetic reduction will with any luck , be modified Sooner or later. During the intervening yrs, Erickson has designed ribs and all kinds of other parts that happen to be FAA PMA-ed for all rag-wing Pipers. Erickson was granted the STC for the total-length leading edge slot in 1998. This slot aids preserve the boundary layer of airflow at sluggish speeds. Along with that, Erickson engineered a squared off wing and got rid of the suggestion bow offering the wing an extra six% surface area place, enhanced the flaps which ends up in 44% much more flap spot, and pushed the ailerons outward 23-inches to the edge in the wing. He calls it the “Extended Wing.” The squared wing provides about eight lbs to the initial Piper wing.

Adding a slot to the Extended Wing adds One more nine lbs per wing, but the greater safety envelope from which to fly is perfectly well worth the trade-off. The flight characteristics in the squared-off and slotted wing, which Erickson phone calls the “Extended Slotted Wing”, is the main edge and emphasis with regards to decision of wings to include with your Cub job. The Extended Slotted Wing is the greatest doing wing offered by Dakota Cub. It’s got a 135-inch slot, a squared-off wing with 102-inch ailerons, and a 90.twenty five-inch flap. Dakota Cub also offers the conventional Cub wing and also a squared-off wing with no slot.

The Prolonged Slotted Wing is solely a safer wing. It permits the next essential angle of attack, slower stall pace, and virtually eliminates the sudden lack of carry as opposed to a straight wing. It delays the separation with the air stream with the wing surface area, So aileron authority is maintained and in many situations the only indication of the stall will likely be an increased-than-normal level of respectable. This phenomenon makes it possible for the sink fee of your plane on method of landing to generally be controlled by energy by itself enabling a more specific touchdown position without panic of the wing stalling or falling off on one particular aspect. The wing also has an improved roll fee due to ailerons staying extended to the end from the wing.