User:Noha307

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This user has uploaded 840 images to Wikimedia Commons.

See my Wikipedia Userpage for more information.

Editing and Uploading Process

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Aircraft 3-Views

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Documents were scanned at 300 dpi on either an Epson Expression 12000XL or a Canon CanoScan LiDE 400 scanner. 300 dpi was selected as it was high enough resolution to capture sufficient detail, while also being small enough that editing was not particularly laborious.

In the event PDF files are provided by another source, the files are downloaded and then uploaded to the image extract tool on PDF-Online.com. The metadata of the result is then checked to determine its dpi. The file is opened in GIMP with the correct dpi entered in the import dialog box. The 3-view is then cropped to remove all extraneous content so only the drawing itself remains. (In cases where the three views are spread across two pages, prior to cropping the views are aligned on the aircraft centerline using a guide. The vertical spacing is determined by measuring the distance between the lowest point on the upper view and the highest point on the lower view of the two views on the same page. Identical spacing is then applied between the highest or lowest point on one of the two views on one page and the third view on the other. The two pages are then merged together.)(Any details not directly related to the drawing that is not completely contained by a box drawn 5 pixels from the outermost points of the drawing, such as a list of specifications, is removed. In the rare cases where this information is critical to the understanding of the drawing, it is transcribed in the description.) The image is exported from GIMP as a PNG and uploaded. (By uploading the cropped, but otherwise unredacted version first, it creates a master copy that can always be reverted to should mistake be made in one of the subsequent edits.) The format of the aircraft's manufacturer, designation (including variant), and nickname used in the file name is as depicted on the document the image was taken from and may not be the most common form. The second portion of the file name depends on the format of the image itself (e.g. line drawing or silhouette). After the initial version is uploaded, the image is grayscaled and reuploaded. It is then edited a third time to remove any imperfections or partially cropped content and deburr lines. This is performed by using a fuzzy select tool or select by color tool set to a threshold of 20 to 30 (rarely 40) is on any white background areas to highlight the imperfections and remove any minor gradations in tint. A few minor changes are made with future conversion to vector format in mind. These mostly involves the elimination of one pixel spaces and the creation of gaps to separate elements such as individual characters of text that could cause problems for an automatic tracing program. Similarly, creation of a contiguous white area allows future users to more easily use a fill tool to color the drawing by reducing the number of separate areas that need to be clicked on. The revised version is again uploaded. If necessary, a the image is deskewed and a fourth version is uploaded. (Multiple versions are uploaded so that they can be reverted to if a mistake in editing is found later.) When the upload process is complete, the resulting image is then placed on the relevant article in the specifications section immediately under the section header as a right-aligned frameless thumbnail between 300 and 600 pixels depending on size.

Preferred Characteristics

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All things being equal, the following characteristics are preferred:

  • Vector file format, rather than raster
  • Inclusion of dimension lines, rather than omission
  • Line drawings, rather than silhouettes
  • Lack of markings (i.e. operator agnostic), rather than operator specific
  • Larger image size, rather than smaller
  • Higher quality, rather than lower

In addition, a second example may be included using a multiple image template if there are significant differences, for example a different number of crew positions or engine type change, between variants

Logos

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The sources are searched by using character strings that usually include the name of the company excepting the last word, which indicates the company's type (e.g. company, corporation, or incorporated). An example of each of the search results is opened in a separate tab. They are then compared until the best version is determined according to scan resolution, size, "cleanliness", and other factors. The image is then screenshotted using Windows Snipping tool and saved to the desktop. The file name is the name of the company as represented in the advertisement (which may or may not be the most well known formulation of the company's name) or the name of the specific product. If two or more versions of the logo with the exact same name are present, then they are differentiated by placing the year of the advertisement in parentheses at the end of the file name. If two or more versions of the logo with the exact same name and from the same year are present, then they are numbered sequentially starting with the one earliest in the year. The files are then opened in GIMP where they are edited. The images are cropped to within 4-5 pixels of the most extreme points of the logo according to the most drastic change in contrast between two sets of pixels. (This does two things: 1. If there is any question as to where the changeover occurs due to a gradual change in color, it leaves a buffer that includes. 2. It creates a useful margin so that the lines don't cause any confusion by being right up against any other content in whatever situation they are used and aren't immediately at the edge of the screen if viewed in isolation.) If the image includes extraneous markings – such as those from parts of the advertisement that are not part of the logo – they are then hidden with the clone tool. When uploaded the images are placed into one of four categories: logos of aircraft manufacturers, logos of aircraft engine manufacturers, logos of aircraft propeller manufacturers, or logos of aircraft accessory manufacturers. If they exist, they are also placed into either the relevant company or specific product category as well.

Aids for Determining Status of Marking

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It is not always clear whether a marking used in an advertisement is actually a logo, or just a fancy font. Therefore, it can be helpful to look for either manuals from the company to check whether they use the marking. Alternatively, a search of USPTO.Report may be useful. Finally, the Official Gazette of the United States Patent Office, which USPTO Report appears to draw from, is a more manual method of searching for trademark applications.

Talk Page Posts

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Lists of Equipment/Manufacturers

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Sources

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Aircraft 3-Views

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Logos

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Potential Sources

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Non-Periodical Sources

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  • Annual Reports
  • Manuals
  • Stock Certificates

Other Images

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To Create

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To Find

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Aircraft 2-Views

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Aircraft 3-Views

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1930s American Metal Single Engine Executive Aircraft

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1930s North American Radial Engine Utility Aircraft

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Agricultural Inline Piston Airplanes

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Agricultural Radial Piston Airplanes

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Business Jets

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Commercial Transports Purchased by U.S. Military

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This subsection was created not because these aircraft are to be compared, but because they share the common characteristic of being produced post-1977 and operated by the U.S. military. Therefore, while any manuals normally would have been automatically copyrighted, the 3-view drawings from the military manuals would still be public domain. Said manuals may be available from Air Force e-Publishing or as NATOPS flight manuals from Secretary of the Navy.

Military Civilian
C-143 Challenger 604
HC-144 CN-235
C-145 M28
C-146 Dornier 328
C-147/E-9/O-6 DHC-8
C-4 Gulfstream I
C-8 DHC-5
C-23A Short 330
C-23B Short 360
C-26 Metroliner
C-28 Cessna 404
C-29 Hawker 800
C-31 F27
C-35/T-47 Citation V
C-37 Gulfstream V
C-38 Gulfstream G100
HU-25 Falcon 20
O-5 DHC-7
T-1 Hawker 400
T-44 King Air
U-28A PC-12
UV-18A DHC-6

Douglas Four Piston Engine Airliners

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Jet Trainers

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Large American Naval Flying Boats

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Lockheed Constellation Family

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Postwar American Civil Single Engine Utility Airplanes

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Postwar American Prototype Military Helicopters

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This subsection was created not because these aircraft are to be compared, but because they share the common characteristics stated by the subsection title.

Postwar Beechcraft Twin Piston Engine Airplanes

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Postwar Cessna Twin Piston Engine Airplanes

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Postwar Piper Twin Piston Engine Airplanes

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Postwar Twin Engine Airliners

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Raised Cabin Single Engine Utility Airplanes

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World War II American Floatplanes

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World War II American Single Engine Trainers

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World War II American Twin Engine Trainers

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World War II Japanese Monoplane Floatplanes

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World War II Japanese Twin Engine Airplanes

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Proposals

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Other

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Logos

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Propeller Manufacturers

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Accessory Manufacturers

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Specific Products

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Other

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Other Images

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  • Aircraft antennas[871] (from [872]); [873] (from [874])
  • Aircraft engine fuel energy use chart[875] (from [876])
  • Aircraft engine oil and coolant temperature regulation systems[877]
  • Aircraft exterior lighting[878] – use YouTube video as influence
  • Aircraft landing gear[879] (see figures 1, 12, 13, 14, 16, 18-27)
  • Aircraft lights[880]
  • B-24 turbosupercharger installation schematic[881] (from [882])
  • Blade & cuff assemblies[883] (see figure 50, use University of Illinois copy as is better quality)
  • Bombs, representative types[884] (see page 5)
  • Carburetor Air Systems[885]
  • Components of a bomb complete round with box fin[886]
  • Course indicator[887]
  • Curtiss D-12[888]
  • EC-54 main equipment rack[889]
  • Engine Smoke and Flame Identification Chart[890]; [891] – alternate version with one fewer entry
  • Explosive train[892]
  • Functioning of a bomb round[893]
  • General Electric I-16 cutaway[894] (from [895]) – original report
  • General Electric T700-GE-700[896]
  • General Electric turbocharger cutaway drawing[897] (from [898])
  • ̈Gun, Automatic, 20 mm, T171E2[899]
  • Gun-Port, Protruding Machine Gun and Wing-Cannon Installations[900] (see pages 16–20) – combine drawings from tables into single image, larger drawings on later pages
  • Hamilton Standard Hydromatic Propeller operation[901] – see request in graphics lab for more information
  • Leading edge flaps[902] (see page 1-10) – similar drawing exists, but shows different type of flap
  • Loop and Sense Antenna Radiation Pattern[903] – determine if image is taken from a public domain source
  • LORAN day and night coverage [904] – determine if public domain
  • Marker beacon antenna[905] (see Figure 11-117)
  • Methods of stabilizing flight[906] (see page 10)
  • NACA airfoil profiles[907]
  • Optical gun sight[908] (see page 75, from AeroAntique), a cutaway already exists
  • Principle structural units[909] (see page 1-2)
  • Radio magnetic indicator[910]
  • Schematic Diagram of Stromberg Direct Fuel Injection System[911]
  • Shock Strut Function Diagram[912]
  • Standard NACA coefficients[913] (see figure 1)
  • Trapped self-draining pitot-static tube[914]
  • Trimetrogon camera layout[915] – from [916], for en:Trimetrogon
  • Turbofan noise sources[917] (see page 5) – for w:Aircraft noise pollution
  • Type B Electronic Control System for Turbosuperchargers – [918] (from [919]); [920] (from [921]) – alternate version
  • Type B-4 Venturi tube[922] (from [923]], see page 165)
  • ̈Typical .50 caliber machine gun wing installation[924]
  • Typical Exhaust Manifolds[925]
  • Vacuum system[926] – find source
  • Variable pitch propeller[927]search Google Images for "Feathering Propellers in Airline Transport Operation" to see images from article
  • VOR antenna[928] (see Figure 11-96)
  • Yagi antenna[929] (see page 42)

Note that many of the drawings found on various websites (such as Aircraft Systems Tech and Flight Mechanic) are copied from the Aviation Maintenance Technician Handbook, or similar Federal Aviation Administration publications. Further note that, in the original PDF file published by the FAA, the drawings appear to be in vector format.

To Compare

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Aircraft 3-Views

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1930s American Metal Single Engine Executive Aircraft

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1930s North American Radial Engine Utility Aircraft

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American Liaison Airplanes

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American Tandem Rotor Helicopters

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Bell Fighters

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Business Jets

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Canadian Single Engine Utility Airplanes

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Canard Delta Wing Fighter Jets

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Douglas Four Piston Engine Airliners

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Douglas Twin Piston Engine Airliners

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Grumman Amphibians

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Jet Trainers

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Large American Naval Flying Boats

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Lockheed Constellation Family

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Lockheed Electra Family

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Piper Cub Family

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Postwar American Civil Single Engine Utility Airplanes

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Postwar American Light Civil Twin Engine Utility Airplanes

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Postwar American Light Helicopters

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Postwar American Naval Bombers

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Postwar American Naval Fighter Jets

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Postwar Twin Engine Airliners

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Raised Cabin Single Engine Utility Airplanes

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Sikorsky Helicopters

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Variable Sweep Wing Strategic Bombers

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Waco Gliders

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World War II American Dive Bombers

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World War II American Floatplanes

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World War II American Single Engine Trainers

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World War II American Training Biplanes

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World War II American Twin Engine Trainers

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World War II Japanese Biplane Floatplanes

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World War II Japanese Monoplane Floatplanes

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World War II European Twin Engine Airplanes

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World War II Japanese Twin Engine Airplanes

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Other

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Aircraft 3-Views

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American Line Drawings

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Japanese Line Drawings

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Other Line Views

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American Silhouettes

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Japanese Silhouettes

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Aircraft Parts

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Logos

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Aircraft Manufacturer Logos

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Aircraft Engine Manufacturer Logos

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Aircraft Propeller Manufacturer Logos

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Aircraft Accessory Manufacturer Logos

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Specific Aircraft Product Logos

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Other Aerospace Logos

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Templates

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Other

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Categories I Have Created

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