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91 Strategic Reconnaissance Squadron History Notes
Addendum to Chapter 2
Page 6 of 6 pages
The Clarence Freeman Photo Collection
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More Watsonville Airport, CA, accidents and repair and
maintenance efforts in the field and at home base.
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Above: Bent prop from O-46 no. 7.
This is a constant speed prop, and pitch was changed by pumping oil through the drive shaft into the cylindrical device protruding from the hub.
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As oil went in, the cylinder would be pushed outwards, and it would pull on the circular ears attached to each blade, ultimately causing each blade to turn inside the hub.
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The wings, prop, and empennage from the crash-landed O-46 no. 7 lay in front of the fuselage.
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Uncowled Pratt & Whitney
R-1535 Engine on the
Douglas O-46 aircraft.
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Douglas O-46 parked for field exercise.
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Douglas O-46 maintenance
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Douglas O-46 maintenance with Clarence Freeman pictured at work.
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Douglas O-46 maintenance
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A good closeup of the O-46 with unknown squadron member seated.
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This completes the Freemen
Collection, as it applies
to Chapter 2. You may move
on to Chapter 3 and on the first
page you will have the option
to see two more pages of this
collection while the 91st OS
was stationed at Wheeler-Sack
Field, Pine Camp NY.
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End of Page 6 of 6 Pages to this
Addendum to Chapter 2,
The Freeman Photo Collection
Go to Chapter 3 of the continuing 91st History Story
or Page 1 — 2 — 3— 4 — 5 — 6 — of this Addendum
or you may go to
Cover — Table of Contents — Introduction
Chapters — 1 — 2 — 3 — 4 — 5 — 6 — 7
Selected Reference Notes #s — 1 — 2 — 3 — 4
Return to Home Page
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