File:Grumman J4F-1 Widgeon 3-view line drawing.png
Original file (2,281 × 3,745 pixels, file size: 572 KB, MIME type: image/png)
Captions
Summary[edit]
DescriptionGrumman J4F-1 Widgeon 3-view line drawing.png |
English: A 3-view line drawing of the Grumman J4F-1 Widgeon. |
Date | |
Source | “Erection and Maintenance Instructions for Model J4F-1 Airplane” (Grumman Aircraft Engineering Corporation, January 29, 1942), 8. Scanned and provided via email by Patrick Hibbard of the eBay account Warbirds and Trains. |
Author | Grumman Aircraft Engineering Corporation via Patrick Hibbard |
Permission (Reusing this file) |
The manual the image was cropped from included a defective copyright notice. The notice omits the copyright symbol and/or any use of the word "copyright". |
The following text was present as a technical data block in the upper right corner of the original full scan, but was cut off as part of the editing process:
NOTES:
WING AREA 245 SQ. FT.
MOTOR RANGER 6-440C-5
200 H.P. AT 2450 R.P.M.
WEIGHT EMPTY 3211
#
GROSS WEIGHT 4500
#
WING LOADING
= 4500/245 = 18.36
POWER LOADING
= 4500/400 = 11.25
AIRFOIL AT ROOT &
CENTER SECTION NACA 23015
AIRFOIL AT TIP NACA 23009
Licensing[edit]
This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag. Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag. |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:02, 3 April 2023 | 2,281 × 3,745 (572 KB) | Noha307 (talk | contribs) | Remove imperfections and partially cropped content | |
00:24, 3 April 2023 | 2,281 × 3,745 (1.16 MB) | Noha307 (talk | contribs) | Grayscale | ||
00:21, 3 April 2023 | 2,281 × 3,745 (2.26 MB) | Noha307 (talk | contribs) | Uploaded a work by Grumman Aircraft Engineering Corporation via Patrick Hibbard from “Erection and Maintenance Instructions for Model J4F-1 Airplane” (Grumman Aircraft Engineering Corporation, January 29, 1942), 8. Scanned and provided via email by Patrick Hibbard of the eBay account [http://www.ebay.com/str/warbirdsandtrains Warbirds and Trains]. with UploadWizard |
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File usage on Commons
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Unique ID of original document | xmp.did:7c8fb8f4-f963-44ce-bc76-c51ab60c707b |
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Software used | GIMP 2.10 |
Horizontal resolution | 28.35 dpc |
Vertical resolution | 28.35 dpc |
File change date and time | 01:01, 3 April 2023 |