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Search Strategy Considerations

Things to look for in the sonar data

Debris Field
Following the Natal-Dakar flight segment, AE describes a project conducted during the World Flight in which air samples were being taken, in a study of upper air microorganisms.75

These were performed by AE and FN for Dr. Fred C. Meier of the Department of Agriculture, and were similar to experiments carried out on some of Charles Lindbergh’s flights. The collection devices were aluminum cylinders, and AE reported having a supply aboard exceeding a dozen broomstick-sized collection cylinders. These were mentioned in AE’s logs and the Luke Field aircraft inventory established following the initial westbound World Flight attempt and crash at Luke Field.

These cylinders, if distributed post-impact, would be characteristic shapes in a debris field that could be used to assist in identifying the wreckage.

In Situ Documentation
Ideally the entire structure should be documented as it is found, from as many angles as possible for 360 degrees around the wreckage. Interest areas include

Condition of fuselage, wings, engines, propellers, flaps, and control surfaces.

Impact damage is important to computing impact dynamics.

Debris field mapping and geo-referencing of anything found in the debris field.

If possible, cockpit documentation of controls, instrument indications, and items found in the cockpit are valuable to the crash analysis.

Accident investigators should be on-site to observe and record information prior to recovery, and to examine wreckage as it is recovered.

Aircraft Views and Dimensions

Dimensional Data

Below are basic dimensional data for a Lockheed 10A airframe. AE’s Lockheed 10E had larger engines and other modifications.

Figure 11.jpg

Figure 11 - From Purdue's Collection - Basic Data - From Lockheed, Burbank, CA.

Figure 12.jpg

Figure 12 - From Purdue's Collection - Three-view Drawings


Below are basic images for general structural reference


Lockheed Electra 10E



Lockheed Electra 10E

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