Building Pipistrel Sinus 912 Kit Serial 196

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About Me
How this project originated
Purchase and shipping
FAA kit evaluation
Space, Tools and Materials
Fuselage Interior
Windscreen, top window and doors
Flight Controls
Landing Gear
Empennage
Wings
Electrical System
Ballistic Rescue System
Rotax Engine Modifications
Firewall Forward
Instruments and Avionics
Final Details and Flight Preparation
Flight Test
Supplemental photos and drawings
Engine modification photos from Pipistrel
Links and References
Welcome

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 delightful aircraft.

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.
 
So, please 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.



BacklitSinus.jpg

What's New?

October 21st, 2012 to February 17th, 2013
I received the renewed ballistic chute from Galaxy and re-installed it on November 4th.  After several weeks of delay waiting for the FAA Designated Airworthiness Representative to become available, the final FAA inspection was completed and airworthiness certificate issued on January 19th.  That major event was followed by weather delays until first flights were completed successfully on February 17th!
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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 web site.

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