Quantum F3F

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Nuevo modelo para F3F que nace de la colaboracion entre Pierre Rondel, Gian Marco Occhibove y Dirk Pflug.

Habra que estar informado de este interesante proyecto que comercializara Ivan Sanda Models (http://www.sandamodels.com/)

Saludos, L

(copio/pego informacion de Pierre Rondel, fuente Facebook de Planet-Soaring)

During these very last days of 2017, I'm proud and quite happy to say, that finally the Quantum F3F should be alive soon !

It has been a long project since the beginning, project which has nearly died when the initiator and manufacturer just abandonned the design team "in the middle of the river". But after all the effort Dirk, Gian Marco and I put in this project we just couldn't let it die so we found another manufacturer (ISM), much more serious this time, and resumed the project by revisiting the CAD drawings, doing some changes here and there to help manufacturing, then start milling.

Molds are now finished and the first prototype should be ready beginning of 2018. The time to build it and maiden it, and I will keep you informed and share my first impressions.

The Quantum has been designed only with F3F in mind, starting from an aerodynamic study about optimum turn radius vs plane weight/wind/flight time/Cz/Cx/etc ... This allowed us to obtained the necessary requirements to design the section that Dirk then created especially for the Quantum. Wing planform is a pure elliptical lift wing, with a 2.98m winspan and 15.7 aspect ratio. We payed attention to the wing-fuselage and tail-fuselage junctions to reduce the drag with a dedicated root airfoil.

The Ballast compartiments in the wings and in the joiner allow to incrementally increase the flying weight up to the max FAI wing loading of 75gr/dm2 without moving the CoG of the plane, so no need to add or remove balance lead in the nose. Also the maximum weight can be achieved without using very expensive tungsten slugs, brass being enough.

I also prepared a simple color scheme proposal that will be available is different color combination (comments are welcome).

You will easily understand that I'm very excited to receive the first prototype and fly it to see how it performs. I'm like a child ... and I have even prepared the 3D printed spacers file to go with the ballast 1f609.png;)

Ivan Sanda Models will manufacture and sell the Quantum F3F. But please be patient and give us some time to fly the model first and do adjustments if necessary.

F3F season 2018 will be definitively very interresting and challenging for me !

Stay tuned !







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La verdad es que me mola.

Las raíces de las alas me suenan mucho... Jejejeje.

Pero el fuse l han hecho demasiado gordo para lo que se lleva ahora. Es una pena que no aprovecharán y metieran lastre en la barriga...

La verdad es que si Lázaro, ese debía ser pa ti!

Enviado desde mi Mi A1 mediante Tapatalk

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Pierre ya recibio uno de los primeros prototipos. Fotos...


Enviado desde mi STF-L09 mediante Tapatalk

La verdad es que ahora viendo las fotos no me parece gordo en absoluto.

Lo de el no llevar el mando hasta el final del estabilo es porque al tener la cuerda de la raíz más larga que el resto el perfil se engorda y claro la bisagra haría una curva impidiendo que mandara bien, así que le han quitado el mando y listo. Tiene sus ventajas, así el neutro se ve mejor

Enviado desde mi Mi A1 mediante Tapatalk

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