"The documents were so old, however, that they were not listed in the modern computerized library search systems, and some of these documents were out of print." ¹

NACA Cleveland library, circa 1945.

Summary

I can usually get even rare and obscure publications through inter-library loan from my public library, but these were reported as having no loanable copies available.

Discussion

I have tried the many excellent search tips at Gwern's Internet Search Tips, and now I am at the "request help" stage.

I would appreciate any help anyone can offer finding them as loanable print copies or digitally.

Recently made available

• Heat Transfer Calculation for Aerofoils RAE Rep. No. Aero. 1783, Nov. 1942. Reprinted as NACA MRR No. 3E29, May 1943.
  Available online at abbottaerospace.com

Could only find at google books

• NACA conference on some problems of aircraft operation [at] Lewis Flight Propulsion Laboratory, Cleveland, Ohio, November 17, 18 1954 books.google.com

Might be available online soon

• Orr, J.L., Milsum, J.H. and Rush, C.K.: “Electro-Thermal De-Icing Systems: Their Design and Control”. NRC NAE Report LR-70, March 1953.
• Rush, C. K.: The N.R.C. icing wind tunnels and some of their problems. Ottawa: National Aeronautical Establishment 1955.

No Loanable Copies Available

• Katz, R. E., and Cunningham, R. M.: Aircraft Icing Instruments. Instruments for Measuring Atmospheric Factors Related to Ice Formation on Airplanes - II. Dept. Meteorology, M.I.T., March 1948. (Final Rep. under Air Force Contract No. W-33-038-ac-14165, July 1,. 1945-Dec. 31, 1947.)
• Vonnegut, B.: "Instruments for Measuring Atmospheric Factors Related to Ice Formation on Airplanes". De-Icing Res. Lab., Dept. Meteorology, M.I.T., April 1946

Could not find except by reference

I have found one-line references to these, but no on-line sources (ntrs.nasa.gov, google, worldcat, dtic, semanticscholar, archive.org, etc.), nor loanable library copies.

• Chandler, H. C., Jr.: Survey of Aircraft Anti-icing Equipment. NACA restricted report, Feb. 27, 1942.
• Howlett, D. P.: Ice Detectors. (paper presented at 1961 Aircraft Ice Protection Conference, D. Napier & Son, Ltd.)
• Torgeson, W. L., and Abramson, A. E.: A Study of Heat Requirements for Anti-Icing Radome Shapes with Dry and Wet Surfaces. WADC Tech. Rep. 53-284, Wright Air Dev. Center, Wright-Patterson Air Force Base, Sept. 1953. (Contract AF 33(616)-85, RDO No. 664-802.)
• NA-63-303, "Use of the Ko Correlation in Preliminary Design and Scale Model Icing," Frederick R. Weiner, North American Aviation, Inc. (Presented at Spring Meeting of Aircraft Air-Conditioning Forum, Los Angeles, California, March 21, 1963).
• In-Flight Icing Paperback – January 1, 2001, by Porter J. Perkins, Sporty's Pilot Shop
• Dickey, T.A., "An Analysis of the Effects of Certain Variables in Determining the Form of an Ice Accretion," , (presented at Mt. Washington Spring Planning Conference, April 1952, Aeronautical Engineering Laboratory, Naval Air Experimental Station. May 29, 1952.)

On a list of restricted/classified NASA reports

We may never get to see these, unless one has a security clearance and a "need to know". (Must be some really good info to still be restricted 80+ years later.)

However, I have seen copies of some other publications that are on this list, so things may have changed, and they might someday be available.

https://www.governmentattic.org/25docs/NASAtechRpts1980older_2017.pdf

• Rodert: Design Outline of Anti-icing Equipment Employing Heated Air, NACA ARR, 1942.
• Rodert, Lewis A., Clousing, Lawrence A., and McAvoy, William H.: Recent Flight Research on Ice Prevention. NACA-ARR, Jan. 1942. (Might be similar to NACA-WR-A-34, April 1942, which is available at the NTRS ntrs.nasa.gov)

A Mystery

A reader sent in this image. No context information is available, and the reader does not know what document this came from:

Do you know where it came from? If so, email me at the contact information further below.

Helicopters are mentioned (CH-45, CH-53, Chinook).

To me, it appears to be from a document discussing ice impact test article sizes, the "Equivalent Ice Ball Size". I have seen several approaches to determining ice impact test article size. The arithmetic of this one escapes me. It does not appear to be an equivalent volume, and the "5.02 in" equivalent diameter case may be a typo (or a different value, the figure is hard to read).

I speculate it is from the 1970s to 1980s, when a great amount of helicopter icing tests were conducted.

Notes