My name is Paul Kuntz, and I will be using this web site to describe my progress as I construct a kit for the aircraft
pictured on the left. This plane is a motor glider, manufactured by Pipistrel D.O.O., located in the lovely town of
Ajdovscina, Slovenia. That's me in the picture on the right (red shirt), with my wife, Mary and Ivo Boscarol, the CEO
of Pipistrel. The picture was taken at the Pipistrel factory in Slovenia in April, 2006 when we visited to look at the
aircraft and the factory, and to fly with the factory pilot. The factory web site is: http://www.pipistrel.si/intro
The specific model that I am building is the Sinus 912 (That's pronounced seen-us, not sine-us). The Pipistrel
line of aircraft is imported into the US by Pipistrel USA http://Pipistrel-USA.com
Briefly, the Sinus 912 is two-place, side by side, high wing aircraft, powered by the Rotax 912
80 hp engine. It weighs 612 lbs empty, 1200 pounds max take off, has a controllable-pitch feathering propeller, a 15-meter
wing with a 30:1 glide ratio, cruises at 110 knots while consuming 3.1 gal of fuel per hour, with a range of 650 NM.
There's plenty of room and load capacity for two people, luggage and full fuel (26 gallons). All in all, it's just a
The Sinus has a sister aircraft -- the Virus (pronounced Veer-us). It is identical in
all respects to the Sinus, except that the wing is truncated just outboard of the flaperons, giving it a 12.5 meter span.
The shorter wing yields a 120 knot cruise at the expense of glide ratio, which is reduced to 24:1. Both the Sinus and
Virus are available in tail wheel or nose wheel configuration. Pipistrel introduced the Virus Short Wing (Virus SW)
in 2007, which has a 10.7 meter wing with impressive performance of 147 knot cruise at 75 percent power on the 100 HP Rotax
912 ULS and is fully aerobatic, although with reduced glide performance. Pipistrel has continued with innovative development,
now offering USA Light Sport versions of all three models, and recently announced a removable wingtip version of the Sinus
for easier hangaring, as well as the very practical and reasonably-priced Alpha Trainer.
use the links on the left to see more about the purchase and shipping process, the FAA kit evaluation, and follow my progress
through the kit build process.
February 18th to October 21st, 2013
For the past eight
months I have been spending my spare time flying, including restoration of my rusty flying skills, completion of
the Phase 1 flight test program, a trip from Seattle to Oskosh for AirVenture 2013, and a few modifications to the plane,
plus some maintenance tasks.
Total hands-on time for the entire construction
period: 782.4 hours. This does not include time spent studying the kit manual and deciding how to approach things,
writing emails to the Pipistrel factory, unpacking and inventorying parts, updating my builder's log and maintaining this
Pipistrel Builders Information Exchange
If you have questions or want to exchange information with other
Pipistrel kit builders or owner/operators, please join the Yahooo Pipistrel on-line builders group. You can do this
by going to http://groups.yahoo.com/group/pipistrel and click on the Join This Group! link on the right side of the page.