Dakota Cub’s Extended Slotted Wing

Flight safety is something all pilots speak about. They stay it, be given it, and constantly hope to select it in their everyday lives inside the aviation international. For the Super Cub fanatic, the Extended Slotted Wing from Dakota Cub offers pilots the possibility to enhance their safety margin as well as boosting the climb performance of the plane.

Imagine flying your Super Cub at a high angle of assault with the airspeed indicator analyzing 20 mph, then rolling into 60-levels of bank and initiating a hiking spiral even as deciding on a strength placing this is less than full throttle! That is the everyday exhibition that sells the Dakota Cub Extended Slotted Wing. The second most mentioned first-rate of this wing is the potential to have full flight manage authority at high angles of assault. No extra gentle controls, plopping it down, or wing drop on stall.

Mark Erickson, the founder of Dakota Cub, began his challenge in the 1990’s. All he wanted turned into a Cub rib. Nothing from Piper became to be had at a reasonable cost and because the Piper ribs were so fragile, he determined to build his very own. He implemented present day-day  era to an antique Piper wing slot online indonesia that became at the start developed for the YL-14 liaison version of the J5C Cub. The YL-14 wing changed into a slotted wing. According to Erickson, there were handiest 14 of these plane constructed before the cease of World War 2. They had been particularly engineered for brief take-offs of a hundred-feet and climbs with high angles of attack. There are most effective two of these nevertheless within the air today – one in Spain; the alternative in Nebraska.

The Dakota Cub Extended Slotted Wing has several variances while as compared to the authentic Cub wing and the L-14 wing for that count number. Erickson revised the authentic Piper US35B airfoil used for the L-14. He developed a custom “T” formed extrusion with the identical dimensions that once used in constructing a truss-fashion rib, is lighter, simpler to work with, and extra robust than the original wing. Erickson obtained a STC for the new wing in 1993.

Erickson’s new rib only adds seven lbs to the burden of every original Piper wing. The new wing has been structurally tested to in access of 2,200 lbs, however, the STC limits the gross weight to one,750 lbs for the original wing or 2,000 lbs for the ones wings prepared with the Wipaire One Ton Cub STC. This artificial discount will with a bit of luck be modified inside the destiny. In the intervening years, Erickson has designed ribs and plenty of different components which might be FAA PMA-ed for all rag-wing Pipers. Erickson was granted the STC for the full-period leading edge fit in 1998. This slot facilitates keep the boundary layer of airflow at slow speeds. On pinnacle of that, Erickson engineered a squared off wing and got rid of the top bow giving the wing an extra 6% surface region, expanded the flaps which ends up in forty four% extra flap vicinity, and pushed the ailerons outward 23-inches to the brink of the wing. He calls it the “Extended Wing.” The squared wing provides about 8 lbs to the unique Piper wing.

Adding a slot to the Extended Wing provides some other nine lbs consistent with wing, but the improved safety envelope from which to fly is properly well worth the alternate-off. The flight characteristics of the squared-off and slotted wing, which Erickson calls the “Extended Slotted Wing”, is the primary benefit and emphasis in regards to choice of wings to consist of for your Cub task. The Extended Slotted Wing is the first-rate appearing wing provided through Dakota Cub. It has a a hundred thirty five-inch slot, a squared-off wing with 102-inch ailerons, and a ninety.25-inch flap. Dakota Cub additionally offers the usual Cub wing and a squared-off wing without the slot.

The Extended Slotted Wing is truly a safer wing. It permits a better crucial perspective of attack, slower stall speed, and practically gets rid of the surprising loss of lift in place of a directly wing. It delays the separation of the air waft from the wing floor, for this reason aileron authority is maintained and in many cases the best signal of a stall can be a better-than-normal price of decent. This phenomenon permits the sink charge of the aircraft on approach to touchdown to be managed by using electricity alone permitting a extra precise touchdown point with out worry of a wing stalling or falling off on one side. The wing also has an improved roll rate because of the ailerons being extended to the end of the wing.

If you need to take full benefit of the Extended Slotted Wing on your Super Cub, then it’s miles advocated to put in a three-inch tools extension. The tools extension will permit the sluggish pace abilities of the wing to take complete impact upon touchdown. Larger tires will offer for this as nicely. Short tools coupled with small tires will result in tail wheel first landings and a take-off run this is longer than greatest as it’s more difficult to acquire that better angle of attack.