Record Hound .020 (oz12364)

 

Record Hound .020 (oz12364) by Dave Sweeney from Model Builder 78 - plan thumbnail

About this Plan

Record Hound .020. Free flight power model.

Quote: "Old Timer Model of the Month. Designed by Henry Struck. Drawn by Dave Sweeney. Text by Bill Northrop.

Record Hound 020 Replica. How time flies! It seemed like only a few months ago that we published an article and plans for Henry Struck's Record Hound (oz5079) design, and yet, when we looked it up, it was exactly two years ago!

Dave Sweeney designed the .020 version to follow closely the construction of the original. The wings are very standard, and need no explanation. Stab ribs are shaped after the framework is completed, in a manner similar to the construction of Taibi's Powerhouse (oz5644).

The original .020 rudder was formed of 4 laminations of .020 by 1/16 bass or spruce, soaked in hot water and bent around a cardboard form. However, Dave recommends the substitution of a 1/20 sheet rudder, as the original warped badly after a couple of hours in the sun and nearly caused a serious accident.

The fuselage is a simple crutch-type framework, with the top half built first. The engine was inverted in the original, and there is plenty of room to invert it in the replica. Dave mounted the engine upright in his prototype replica for easier starting.

IMPORTANT: When building the bottom half of the fuselage, the crutch must stay absolutely horizontal, with no up or down warps or pulls, as any variation from horizontal will change the wing and stabilizer incidence settings.

For a dethermalizer, Dave hinged the whole rudder-stab assembly at the point shown on the plans. He used a nylon R/C hinge, cut to size and epoxied to 1/16 sheet balsa glued between the crutch longerons. A pin-type hinge was used on the prototype, but Dave suggests that a new 'live' hinge might overcome the pin-type's tendency to become wobbly. He points out that a friend built the model with the stab hinged at the rear, allowing the leading edge to drop down for dethermalizing."

Direct submission to Outerzone.

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Record Hound .020 (oz12364) by Dave Sweeney from Model Builder 78 - model pic

Datafile:
  • (oz12364)
    Record Hound .020
    by Dave Sweeney
    from Model Builder (ref:878-OT)
    August 78 
    32in span
    IC F/F
    all formers complete :)
    got article :)
  • Submitted: 16/06/2020
    Filesize: 444KB
    Format: • PDFbitmap
    Credit*: MB2020

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User comments

MB2020 appears to be the Model Builder whoever-in-charge, a thousand years of glorious life to his scanner :-)
Miguel - 29/07/2020
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* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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