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Seawind Page 1
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Seawind |
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A date was soon set for Steve Bridgewater and I to meet up with Richard and demo pilot Jeff Stumthal at Lantana airport, which is just north of Fort Lauderdale. I had already admired the Seawind's clean, futuristic looks at the AOPA Convention's static park and was champing at the bit to get behind the controls. The Seawind was designed by two Canadian brothers, Roger and Len Creelman and first flew in 1989. The first few Seawinds were powered by 200hp engines which, although adequate for most operations, did not really provide sufficient power for taking off from small lakes or hot 'n' high airfields. Consequently, when Seawind SNA Inc, took over the project in 1991, it decided to increase the power available by an impressive 50%, by substituting the four-cylinder 200hp IO-360 with a six-cylinder IO-540 of 300hp. Other changes included increasing the span of the tailplane and the chord of the elevator. Viewed from any angle, the Seawind is an extraordinarily graceful flying (and floating) machine. It possesses wonderful flowing lines and has a real 'space age' appearance. It is also, quite obviously, extremely well made. Constructed primarily of fibreglass over PVC foam, the hull features four separate flotation compartments and is of the single-step design. Making the airframe and wings out of composites confers the absolutely crucial advantage that corrosion is no longer
an issue. Indeed, the ravaging effects of salt water on aluminium has
seen many a metal flying-boat condemned before its time. Another excellent
aspect of the Seawind is that when it is on its wheels there is over eight
inches of ground clearance, which means that it is possible to land on
the water, extend the undercarriage and then taxi up onto a ramp or the
beach. I was also interested to see that the ailerons appeared to be interconnected
to the flaps, and Jeff confirmed that the ailerons are actually flaperons,
which droop with the first 20 degrees of the slotted flaps movement. I
was also interested by the drooped sponsons on the wingtips and guessed
that they would help to increase ground effect, which would be useful
for better take-off performance. Access to the cockpit is excellent. The truly enormous rear-hinged canopy opens extremely wide and is well supported by gas struts, while the well-placed sprung-loaded footwell makes it easy to step over the sill and down into the cockpit. I was also very pleasantly surprised by the amount of room available in the cabin. At 52 inches wide (54in for the back seats) it is very roomy, which makes for a very pleasant cockpit environment. Overall, I thought the cockpit was very well thought out. The seats adjust over a good range and the panel is huge, with plenty of space for just about every conceivable permutation of instrument fit, while all the controls were easy to reach and operate. The centre console carries all the usual power control levers and also the cowl flap lever, undercarriage selector, flap switch and also a large brown knob, which I quickly discovered extended and retracted the water rudder. When extended, the water rudder is automatically coupled to the rudder pedals and steers through an arc of about 45 degrees, which is approximately twice as large an arc as the air rudder moves through. I was intrigued by the nosewheel steering, which is operated by a small rocker switch on the instrument panel and is actuated by the same electro-hydraulic power pack that drives the undercarriage and flaps. The trusty 300hp Lycoming IO-540 started readily and we were soon trundling briskly across the parking ramp. This particular engine has been stripped down and 'blue-printed' and also features a tuned exhaust system. By now it was already beginning to get hot and I was glad we could taxi with the canopy open. Initially I found the nosewheel steering a bit fiddly, but after only a couple of minutes I had soon adjusted to using it. Indeed, the combination of nosewheel steering, differential braking and a touch of power gives the Seawind an excellent turning circle. Two small lights on the panel illuminate to show whether the nosewheel is right or left of neutral. During the pre take-off checks I was surprised to note that no trim position indicators are fitted for the ailerons, rudder or elevators. Jeff explained that he always checked that all the trim tabs were neutral during the pre-flight checks. I must admit that this was the only aspect of the Seawind's cockpit that I found unsatisfactory. For instance, the elevator trim setting for take-off is bound to vary slightly, depending upon the location of the C of G, and personally I would like to see precisely where the trim was set. Trim control for the elevators and ailerons is via a four-way 'coolie-hat' switch on the pilot's yoke. With the rest of the pre take-off checks completed and the flaps set to the take-off setting of 22°, we swung the huge canopy down and locked it. In fact, because the canopy is so big, it is locked shut by two independent latches on each side of the cockpit wall, as well as catches under the instrument panel coaming. The Seawind that I was flying is fitted with the optional outboard wing
tanks, which take the total fuel capacity to an impressive 110 US gallons.
With all the fuel tanks full, we were carrying 660lb of Avgas, so with
Jeff and I probably weighing another 400lb we were within 40lb of the
maximum all-up weight. Nevertheless the acceleration was excellent and
after a ground roll of around 900ft a smooth steady pull on the control
yoke saw the Seawind rotate into the take-off attitude and climb swiftly
away from the ground. I aimed for its Vy of 85 knots and the VSI was soon
indicating in excess of 1,200 ft/min. Jeff had suggested that we fly out
to Lake Okeechobee so that I could try a few splash 'n' goes, and as it
had been sometime since I'd done any water work, I keenly accepted his
suggestion. |
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