Astro Hog uit de Outerzone lijst

Discussie in 'VRC' gestart door Ton van Munsteren, 20 dec 2020.

  1. Ton van Munsteren

    Ton van Munsteren The First Aviators Forum veteraan

    Lid geworden:
    31 aug 2002
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    Zou dit misschien wel een van de meest bekende kunstvlucht modellen zijn en toch wel heel bijzonder hoe de kunstvlucht werd gevlogen met drukknoppen of een schakelaar.

    En dan dat kleine motortje op toch wel een erg groot model. misschien een mooi gezamenlijk project voor een kunstvlucht dag op OHA.


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    About this Plan
    Astro Hog. Classic RC stunt model. This is the legendary model that got RC aerobatics off the ground in 1957. The first successful low-wing RC model, it took top 4 places at the 58 Nationals. Kitted by Berkeley.

    Quote: "Good morning Steve and Mary, Please see attached file for your website if you find it acceptable. The decal scan came out of an older Sig kit and maybe other modelers would find it useful on the Berkeley version of this kit. Thanks for your time and effort, your website is a goldmine! Regards,"


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    Datafile:


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    User comments
    Hi Steve, I just test flew my Astro Hog, electric powered. Here's a picture for the gallery [more pics 004].
    Paul - 06/09/2013
    Your plans illustrate the balancing location for "control line" flying, no dimensions are shown for radio controlled flying. Can't find those balancing dimensions anywhere, even on other web sites.
    anon - 20/04/2015




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    About this Plan
    Astro Hog. Radio control sport model. Classic RC design, essentially the first successful low-wing RC model.

    This is the Fred Dunn Astro Hog plan as originally printed in MAN. From Model Airplane News issue 04-58, courtesy of theshadow.

    Quote: "Ailerons and the low wing - out of this world manuverability - an airplane to top anything so far in multi RC.

    A low winger for radio-control? What's the deal? Well, give a listen fellows for some interesting clues from one of the most gratifyiong RC projects this modeler has ever had the pleasure of exploiting.

    First off, I do not wish to discredit the faithful high-wingers which have been the EC pioneers. They will continue to provide the basic foundation upon which we build a wealth of know-ledge and experience. I am happy, however, to see the low-winger appear on the scene and assume a rightful position among our top radio-controlled winning models.





    In my opinion, one of the most inspiring developments that sparks the imagination of a designer, was the introduction of multi-channel radio equipment and the recently new adaptations featuring simultaneous control. In addition, we now have electro-mechanical servo devices which have achieved a new high in outstanding performance and dependability. To top it off, we are now able to obtain some new and unique glow-engines, which have been developed especially for RC.

    Throttles are now becoming stand-ard equipment on some of these engines and have been designed to provide us with a complete range of power set-tings. We no longer need consume our flying time fighting acute problems with this equipment, but can get right to work designing, building, and flying models capable of getting the most out of it. The Astro does just that.

    My first attempt at flying a low-winger was made in the Spring of last Fear. The design was a combination of PT-19 and P-51. Ailerons were omitted. since I felt that any good design should be able to fly through normal attitudes without them, and I planned to add them later. This was a mistake! Eight attempts, eight landings, all of them fatal. All interested persons watching the flights, bowed their heads and slowly walked away, reaffirmed in their convictions that the low-wingers were doomed and would never be suitable for use in R/C. Reports from other sectors indicated much the same results with the exception of some favorable comments regarding Hollinger's Fairchild PT-19 (oz327). Not easily discouraged, I sat down and gave it some concentrated thought.





    Since I was unable to attend the '57 Nats, I decided to make good use of the time while the gang was out in Philadelphia, cutting capers in the Eastern skies. I told them I would have something interesting when they returned and went to work burning the midnight oil.

    Actually, I decided, my first design had been so scientific it wasn't worth a hoot in a windstorm. This new ship must be more fundamental and should incorporate some of the good features found in existing designs. I followed some themes of the world renowned Smog-Hog, and decided to stick with the good ole NACA 2415 Airfoil. Ailerons were a must this time - my first ship might have been saved had I been able to control roll. Soon, I discovered I was creating a low-wing version of the Smog-Hog, with a few exceptions, of course.

    The Astro made its first contest appearance in Sept '57 at Turlock, Calif, and walked off with 1st place in Multi-Advanced after Dunham rang up 239.6 points. Since then, the Astro has enjoyed victory at every major meet attended, the latest (at the time of writing) being the contest in Albuquerque, New mexico, where Dunham demonstrated the ship's ability to win out even in high-elevation country.

    I have been swamped with requests for data and design specs, I'll never know how the word spread so fast, but now I fully realise how eager many others have been to see a new look in RC model aircraft design. Let's take a peek at some of the interesting features of the low-winger as revealed by the Astro-Hog.

    Our Astros, thus far, have been equipped exclusively with multi-channel radio gear. No regard has been given to other control systems..."

    Direct submission to Outerzone.

    Update 19/11/2016: Added alternate version of the same plan, thanks to Bernd57. This Uncle Willie drawing shows the complete wing layout.



    Supplementary file notes
    Article pages, thanks to Bernd57. Added missing page, now complete, thanks to RFJ.

    Alternate plan version.

    Corrections?
    Did we get something wrong with these details about this plan (especially the datafile)? That happens sometimes. You can help us fix it.
    Add a correction

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    Datafile:
     

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