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Walter Hammond Righter (1905 - 1982)

An Illustrated Biography by his daughter, Frances Jean Righter Tucker © 2005


Chapter 5. Test Cars

Last Updated : July 23, 2005

Without a wind tunnel to 'trim' the flying characteristics of the drones, dad bought and modified two standard production line cars to allow him to simulate real air speeds on the drone's airframe and control surfaces.

The first car was a 1929 La Salle Sedan to which Dad attached a custom frame to the side of the car to mount the drones. The frame was set up to allow the drones to to move up and down about a foot and to move to the rear without any restriction at all.

The test process involved getting the car up to flying speed, 'trimming' the drone till it was aerodynamically stable then dismounting the drone from the frame, place it on the launcher and then test it under free flight.

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La Salle Sedan 'trimming' the RP-4 / OQ-1, 1939

Walter Righter is driving his car with Reg Denny in the back seat.

Photo : Righter Family Archives - Click Image to Enlarge

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RP-4 / OQ-1 and the La Salle

Photo: Righter Family Archives - Click Image to Enlarge

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RP-4 / OQ-1 mounted on 'trimming' frame

Photo : Righter Family Archives - Click Image to Enlarge

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Walter Righter, Reginald Powell and Kenneth Case

Photo: Righter Family Archives - Click Image to Enlarge

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RP-4 / OQ-1 and the La Salle

On the right : Paul Whittier

Photo: Denny Family Archives - Click Image to Enlarge

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RPV : It All Started Here

Airforce Magazine Feb., 1973

Photo: Righter Family Archives - Click Image to Enlarge

When Dad started making the larger engines, the La Salle couldn't reach the speed necessary to properly 'trim' the drones carrying these larger engines so he bought a Packard 12 limosine.

This time he removed the whole rear body and the two little jump seats out of the back seat were fitted beside the drivers seat. They ruined a perfectly good limo, but "it had performance you wouldn't believe!" Dad said. Now the drones could be tested at about 95 miles per hour.

When Dad bought the Packard we all loved it. Between the front and back seats was a glass window; the center section could be slid open or closed. You could speak to the chauffeur that way or via a speaker.

My sister Cathie and I had a grand time giving orders to "our chauffeur" and pretending we were someone special. The back seat area was spacious with the two extra folding seats between the front and back seats. We had such fun with it before it was stripped down. We all hated to see such a wonderful vehicle destroyed like that.

All these tests were run at Muroc Dry Lake now "Rogers" Dry Lake and part of the Edwards Air force Base.

When Dad sold Righter Engineering to Radioplane "with gladness and sadness", the test cars went with it.

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Unrecognised aircraft and the Packard

Botzum, Richard A., 50 Years of Target Drone Aircraft, Northrop Corp., 1985
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RP-4 / OQ-1 and the Packard (original photograph)

Photo: Righter Family Archives - Click Image to Enlarge

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RP-4 / OQ-1 and the test cars : a formal report

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Created and maintained by russell.naughton@eng.monash.edu.au
Last updated July 23, 2005