The weather was not brilliant with the rain ceasing just prior to the 10am opening - and started again early afternoon.
Over twenty aircraft were noted.
Here we have a small selection of them.
The 1983 registered Pterodactyl Ascenders were mainly the original single seat models but there was one Ascender II and one interesting Ascender II+2. The Ascender II+ was an improved single seater for larger pilots with larger tube spars for the wing that was introduced in the US in1982. The Ascender II+2 was a two seat version with an off centre side seat and frame for the second crew member that was removable, and there was a counter weight on the opposite wingtip to the second seat, to balance the aircraft..
There were 13 Pterodactyl Ascenders registered here in 1983 as follows:
Lovely.
The Pterodactyl Ptiger was developed from the Ascender II+ and featured a fibreglass tub which replaced the basic Ascender airframe, and a wingspan that was reduced by 4 feet to 29 feet. And as a result it could reach 75 mph in level flight instead of the 45 mph cruise of the Ascender. It was powered by the same Cuyuna 430R engine as the Ascender. We have only had one Ptiger registered in New Zealand and I will include it here because it was registered in 1982:
Murray Hagen told me that he did some agricultural work in the Ptiger, spreading cobalt prills.to promote stock health.The single seat Pterodactyl Ascender was developed in the late 1970s by Jack McCornack in California, from the rigid wing Manta Fledge hang glider via the Fledgeling ultralight as I have detailed in a previous post..
The specifications for the basic Ascender were: wingspan 33 feet (10.06 metres) although some versions had shorter wings, length 16 feet 8 inches (5.08 metres), wing area 16.07 square metres, empty weight around 235 pounds (106 Kg) and MAUW 535 pounds (232 Kg). The cruising speed was 45 mph and the stall speed was around 25 mph. The usual engine was a 2 cylinder 2 stroke geared (2.2:1) Cuyuna 430R which produced around 30 HP. Because the engine was geared and the gearbox stuck upwards, it could run a 54 inch propeller (compared to the direct drive Cuyuna 430D engine of the Fledgeling which could only run a 36 inch prop). And with the bigger prop it had a spectacular rate of climb, hence it was called an Ascender.
Pterodactyl Ascenders were initially registered here at a fast rate. After ZK-ESS in December 1981, 16 more were registered in 1982, as follows: (I have added photos where we have them - if blog readers have any more photos of Pterodactyls please send them in).