History and Notes: Like several other manufacturers,
before and since, Wassmer was intrigued with the possibilities
offered by an all-plastics aircraft, and in March 1966 flew their
prototype WA.50, a four seat-monoplane similar in general layout
to the WA.40 series. Powerplant was a 159hp(112-k W) Avco Lycoming
O-320. From the WA.50 came the first of a series of all-plastics
production models, the WA.51 Pacific, flown on 17 May 1969, and
bearing more ressemblance to the WA.51 prototype. The Pacific
had fixed tricycle landing gear and a 150-hp 9112-k W Avco Lycoming
O-320 engine; deliveries began in 1970. A generally similar WA.52
Europa was powered by a 160-hp (119-kW) engine driving a variable-pitch
propeller. A third model, the WA54 Atlantic flew in February 1973
and entered production four months later. It was the most powerful
of the trio, with a 180-hp(134-k W) Avco Lycoming O-360-A, and
while generally similar to the Europa had more baggage space,
revised landing gear coming from "Baladou" model,air intake and
other improvements. By January 1977, 190 WA.51, 52 and 54's had
been sold, but in September of that year Wassmer went into liquidation.
The following January a new company, Issoire-Aviation, was formed
at the same address, talking over Wassmer's industrial assets.
by that time the only aircraft in production was the Wa.80/81
Piranha, a two/three-seater developed by Wassmer and flown in
1975. Orders for 20 had been received and 10 had been built by
the time that Issoire took over, and production had to continue
for this aircraft, then redesigned IA.80. Powerplant was a 100-hp
(75-k W) Rolls-Royce Continental )-200-A.
The specifications apply to the WA.54 : Specifications:
Type: four-seat light mono-plane .
Powerplant: one 180-hp 9134-kW ) Lycoming O-360 flat-four piston
Performance: maximum speed 174 mph (280 km/h) at sea level; cruising
speed 162 mph (260 km/h) at 5,500 ft (1675 m); service ceiling
14,760 ft (4500 m): range 839 miles (1340 km). Weights: empty
1,367 lb ((620 kg): maximum take- off 2,491 lb (1130 kg) Dimensions:
span 30 ft 10 in (9.40 m): length 24 ft 7 1/4 in (7.50 m): height
7 ft 5 in (2.26 m): wing area 133-48 sq ft.