Aria

[윤종대(55억대박난스카이)]

After the record flight Dr. Strojnik and I spent many hours discussing a faster design and doing preliminary calculations. However, during that process we discovered another designer who had already begun a very similar aircraft. This is the Aria:

Aria's designer, Sam Walker, had conceived and built it as a self-launching sailplane. It's one of the most beautiful aircraft I have seen, and undoubtedly one of the best powered sailplane designs ever. Sam engineered an ingenious centrifugally-deployed folding propeller that was spring loaded to streamline itself when the engine was not running.

The twin boom tail allows for fixed engine mounting, thus eliminating the complex retracting-engine designs of other motorized sailplanes. Obviously, it also allows the engine to be mounted in pusher fashion, eliminating the sightline problems and laminar flow disturbance inherent with tractor engine locations.

I found out about Aria because Sam had corresponded with Alex on issues of laminar flow design, Alex's speciality. As Alex and I discussed the configuration required to improve the record speed, we settled on a twin-boom tail design. This would yield clearance for a larger propeller and thus a more powerful engine.

When Alex remembered Sam's correspondence about his similar design, he dug it out and it was almost identical to our preliminary design layouts! We reestablished contact with Sam, who had been unable to finish the project (Aria never flew). Eventually he allowed me to purchase it from him to use as a starting point for a new record attempt.

With a shorter wing and a symetrical airfoil I hope to acheive 275 knots!

Sadly, Dr. Strojnik passed away in 1995. Mr. Walker passed away a few years later. It is unfortunate that neither man lived to see the new airplane fly. I have not done much on the design since, but hope to someday complete it.

In addition to the parts to assemble one complete aircraft, I have a full set of molds for the fuselage for the Aria, and most of the fixtures and other molds. At some point I may consider offering Aria in kit or plans form. If you have questions about the aircraft or any other aspects of aerospace engineering or aircraft design, please contact me and have patience because I will reply as I have time:

John@ReactionResearch.com

Links of Interest
Dr. Strojnik's essential books on light aircraft design are available from Reaction Research:	http://www.ReactionResearch.com/aircraft/strojnikbooks.html
His popular plans-built S-2 sailplane can be seen at:	http://www.sailplanedirectory.com/zwfmot.htm#Strojniks-2
And at	http://www.vula2.org/VULA5Images/Land_Planes/S2a-Strojnik/Index.html
Bob Parker in Baker City, OR was kind enough to send these photos of his completed S2	http://www.reactionresearch.com/aircraft/bobparker/index.html
A derivative design of the S-2 can be seen at:	http://www.icon.fi/~jtki/virtualgli.html
Another beautiful aircraft influenced by Dr. Strojnik is the Vmax:	http://www.webcamsue.nl/vmax.html
Aircraft design software (freeware) based on Dr. Strojnik's books can be found at:	http://www.homebuilt.org/tech/aerotec_readme.html
Dr. Strojnik won the Paul E. Tuntland Memorial Award from the Soaring Society of America in 1987:	http://acro.harvard.edu/SOARING/books/tuntland.htm
Sam Walker worked with George Applebay in developing the Aria, which shared at least some of its features with George's "Zuni" design.	http://www.sailplanedirectory.com/appleb.htm#Zuni
Mike Arnold is a subsequent record holder in this C1a0 category for "Speed over a straight 3 km course at restricted altitude."	http://www.ar-5.com/
Peter Scheichenberger is current record holder in category at 351.39 km/h (218.3 miles/hr) in a BD-5B with 75 hp. Anyone have photos or contact information for Peter? (Thanks to Scott Rider for update on the record!)	http://records.fai.org/general_aviation/current.asp?id1=16&id2=1
Leeon Davis's beautiful DA-11 uses an 18 hp Briggs and Stratton V-twin lawnmower engine!	http://www.airplanezone.com/NewsgroupPix/DA-11.pdf http://www.aircraft-spruce.com/da11.html
Bruce Carmichael's book is also a must read for any aspiring aircraft designer. The email address listed on this link is out of date, but you can purchase Bruce's book by sending a check or money order (the $25 price includes postage to U.S. addresses) to Bruce at:	http://www.glidingmagazine.com/ListBookReviewDtl.asp?id=43 34795 Camino Capistrano Capistrano Beach, CA 92624
Bruce's biographical sketch	Carmichael
Molt Taylor's Mini Imp	http://www.mini-imp.com/
Ligeti Stratos	http://users.chariot.net.au/~theburfs/stosMAIN.html
Ligeti Stratos Model	http://users.mo-net.com/shirl/LigetiStory.htm
Doug Fortune's CNC fuselage foam plug cutting information	http://www.cnckits.com/ (scroll to bottom of page)
Gevers Genesis Triphibian	http://www.geversaircraft.com/index.html
Mountain Goat Bush Plane	http://www.bushplanes.com/
Viper Jet	http://www.viper-aircraft.com/default2.asp
Sky Shark	http://www.aerovisions.com/skyshark.html
Ultrabat Aerobatic Ultralight	http://www.ipilot.com/forum/message.aspx?pid=1177
Now defunct Valkyrie	http://www.ultralightnews.com/sunfun99/dreamwings.html
Jon Sharp's Nemesis	http://www.nemesisnxt.com/
Sparrow Hawk Twin Boom Pusher	http://www.users.globalnet.co.uk/~bipe/index.htm
Aeriks Ultralight	http://www.aeris.ch/defaultx.asp
Other Links of Interest
Sportsman Pilot Magazine	http://www.sportsmanpilot.com
Experimental Aircraft Association	www.eaa.org

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This information is presented as a service only. Great care is taken to provide the best information possible. However, no warranty of expertise or accuracy is expressed or implied.

[연규석(copen)]

대박스카이님 좋은자료들 올려주셔서 감사합니다 여러 회원님들께 많은 도움이되겟네요 드디어 대박스카이님도 서서히 자작교 중독?........ㅋㅋㅋㅋ

[한심석(hanss)]

ㅋㅋㅋ 저도 연사장님 의견에 동감합니다...*^^*

[윤종대(55억대박난스카이)]

^^