Flight safety is one area all pilots converse about. They Are living it, take it, and often hope to settle on it inside their working day-to-working day life in the aviation planet. With the Tremendous Cub fanatic, the Extended Slotted Wing from Dakota Cub delivers pilots the chance to enhance their basic safety margin and also boosting the climb performance of your plane.
Imagine flying your Super Cub in a high angle of attack with the airspeed indicator studying 20 mph, then rolling into sixty-levels of financial institution and initiating a climbing spiral whilst picking a power placing which is less than comprehensive throttle! That’s The everyday exhibition that sells the Dakota Cub Prolonged Slotted Wing. The second most mentioned top quality of the wing is the opportunity to have comprehensive flight control authority at substantial angles of attack. No more tender controls, plopping it down, or wing fall on stall.
Mark Erickson, the founder of Dakota Cub, started his mission within the 1990’s. All he required was a Cub rib. Almost nothing from Piper was offered at a reasonable Expense and Because the Piper ribs were so fragile, he made a decision to Construct his possess. He used present day-day technology to an aged Piper wing which was initially produced with the YL-fourteen liaison Variation of your J5C Cub. The YL-fourteen wing was a slotted wing. According to Erickson, there were only fourteen of those aircraft crafted ahead of the end of Environment War 2. They were especially engineered for brief consider-offs of a hundred-ft and climbs with large angles of attack. There are actually only two of those nonetheless in the air currently – one in Spain; another in Nebraska.
The Dakota Cub Prolonged Slotted Wing has a number of variances compared to the original Cub wing and the L-14 wing for that matter. Erickson revised the first Piper US35B airfoil utilized for the L-fourteen. He created a custom made “T” formed extrusion While using the exact dimensions that when Employed in building a truss-design and style rib, is lighter, less difficult to work with, and even more robust than the initial wing. Erickson attained a STC for the new wing in 1993.
Erickson’s new rib only provides seven lbs to the weight of every first Piper wing. The brand new wing is structurally tested to in obtain of 2,two hundred lbs, on the other hand, the STC limitations the gross body weight to 1,750 lbs for the initial wing or two,000 lbs for the people wings Geared up With all the Wipaire A person Ton Cub STC. This artificial reduction will with any luck , be altered in the future. From the intervening decades, Erickson has intended ribs and all kinds of other parts which can be FAA PMA-ed for all rag-wing Pipers. Erickson was granted the STC for the entire-size leading edge slot in 1998. This slot helps maintain the boundary layer of airflow at slow speeds. In addition to that, Erickson engineered a squared off wing and removed the tip bow Superslot supplying the wing a further 6% surface area place, improved the flaps which results in forty four% more flap place, and pushed the ailerons outward 23-inches to the sting from the wing. He calls it the “Prolonged Wing.” The squared wing adds about 8 lbs to the initial Piper wing.
Introducing a slot for the Extended Wing provides An additional nine lbs for each wing, even so the enhanced security envelope from which to fly is effectively well worth the trade-off. The flight traits from the squared-off and slotted wing, which Erickson phone calls the “Prolonged Slotted Wing”, is the first benefit and emphasis regarding option of wings to include within your Cub job. The Prolonged Slotted Wing is the best performing wing supplied by Dakota Cub. It has a 135-inch slot, a squared-off wing with 102-inch ailerons, along with a ninety.twenty five-inch flap. Dakota Cub also offers the typical Cub wing and also a squared-off wing with no slot.
The Extended Slotted Wing is solely a safer wing. It permits a higher vital angle of assault, slower stall velocity, and pretty much gets rid of the sudden loss of elevate versus a straight wing. It delays the separation from the air flow from your wing area, Therefore aileron authority is maintained and in several circumstances the sole indicator of a stall will probably be an increased-than-regular price of decent. This phenomenon lets the sink price with the aircraft on approach to landing to get managed by ability by yourself enabling a far more exact touchdown place without having worry of a wing stalling or falling off on one particular side. The wing also has an enhanced roll rate due to the ailerons being prolonged to the top with the wing.
If you’d like to just take comprehensive benefit of the Prolonged Slotted Wing on your own Tremendous Cub, then it is recommended to setup a three-inch equipment extension. The gear extension will allow the gradual velocity capabilities from the wing to consider complete effect on landing. Larger tires will give for this at the same time. Quick equipment coupled with smaller tires will result in tail wheel initial landings and also a choose-off run that may be lengthier than best since it’s harder to realize that bigger angle of attack.