The Elmwood Aviation Christavia Mk 1 is a two tandem seat Canadian design by Ron Mason, and was designed for use in missionary flying in Africa (hence the name). It first flew in 1982 and plans were marketed by Elmwood Aviation of Frankford, Ontario but the rights to the design are now owned by the Aircraft Spruce and Specialty Company. Ron Mason went on to design the side by side two seater Christavia Mk II and the four seat Christavia Mk IV and the various models have been built in small numbers (around 100 worldwide) over the years. The Christavia Mk 1 is constructed from a welded 4130 steel tube fuselage with mainly wooden wings that don’t have flaps.
Specifications for the Christavia Mk 1 are: length 20 feet 8 inches (6.30 metres), wingspan 32 feet 6 inches (9.91 metres) and the wing area is a generous 146 square feet. Empty weight is around 745 pounds (338 Kg) and in New Zealand the MAUW is 1,500 pounds (680 Kg). Engines can be from 65 HP to 100 HP, and with the standard 65 HP the cruise is around 105 mph (91 knots) and the stall speed is around 40 mph (35 knots) which is pretty good considering it does not have flaps.
We have had only one Christavia Mk 1 in New Zealand and I reckon we may not see any more.
Our sole Elmwood Aviation Christavia Mk 1 was started quite a few years ago by Russell Scott of Balclutha who also built Jodel D 11 ZK-RSB. However it was not completed at that time and the project changed hands to Peter C Johnson of Milton, near Balclutha. Then the aircraft was sent to Craig Miller of Custom Aviation at Taieri for finishing. It was registered ZK-PCJ2 (c/n 635) to Peter C Johnson on 28/3/14 and it was was test flown at Taieri by John Penno on 15/7/14. It is photo’d above in the Custom Aviation hangar at Taieri on 21/11/14 during its 50 hour inspection, where you can see the Continental O-200 engine installation.
And here it is at the 2015 SAANZ flyin at Ashburton, on 7/2/15.