View allAll Photos Tagged compositing
Composite of several images.
Strobist info:
[1/8] Flash left w/ grid spot.
[1/8] Flash right w/ snoot.
Negative image and various other simple processing techniques to enhance color and contrast.
I took these with a wide lens and used a tripod. I adjusted the camera settings in AV mode then switched over to Manual Mode. I stacked the photos in Photoshop and used layer masks to Erase and then combine images.
Removal of the carriage prints reveals some of the original scumbling on one of the Third Class partitions. The match boarding below the view frames are painted - in First Class they are covered with moquette.
+++ DISCLAIMER +++
Nothing you see here is real, even though the conversion or the presented background story might be based historical facts. BEWARE!
In July 1967, the first Swedish Air Force student pilots started training on the Saab 105, a Swedish high-wing, twin-engine trainer aircraft developed in the early sixties as a private venture by Saab AB. The Swedish Air Force procured the type for various roles and issued the aircraft with the designation Sk 60.
The Sk 60 entered service in 1967, replacing the aging De Havilland Vampire fleet, and had a long-lasting career. But in the late Eighties, by which point the existing engines of the Swedish Air Force's Sk 60 fleet were considered to be towards the end of their technical and economic lifespan and the airframes started to show their age and wear of constant use, the Swedish Air Force started to think about a successor and/or a modernization program.
Saab suggested to replace the Saab 105’s Turbomeca Aubisque engines with newly-built Williams International FJ44 engines, which were lighter and less costly to operate, but this was only regarded as a stop-gap solution. In parallel, Saab also started work for a dedicated new jet trainer that would prepare pilots for the Saab 39 Gripen – also on the drawing boards at the time – and as a less sophisticated alternative to the promising but stillborn Saab 38.
The Saab 38 (also known as B3LA or A 38/Sk 38) was a single-engine jet trainer and attack aircraft planned by Saab during the 1970s and actually a collaboration between Saab and the Italian aircraft manufacturer Aermacchi (the aircraft resembled the AMX a lot). It was to replace the older Saab 105 jet trainer in the Swedish Air Force, too, but the aircraft never got past the drawing board and was canceled in 1979 in favor of the more advanced Saab JAS 39 Gripen multi-role fighter.
Anyway, this decision left Sweden without a replacement for the Sk 60 as transitional trainer and as a light attack and reconnaissance aircraft.
In 1991, Saab presented its new trainer design, internally called "FSK900", to the Swedish Air Force. The aircraft was a conservative design, with such a configurational resemblance to the Dassault-Dornier Alpha Jet that it is hard to believe Saab engineers didn't see the Alpha Jet as a model for what they wanted to do. However, even if that was the case, the FSK900 was by no means a copy of the Alpha Jet, and the two machines can be told apart at a glance. FSK900 had a muscular, rather massive appearance, while the Alpha Jet was more wasp-like and very sleek. The FSK900 was also bigger in length and span and had an empty weight about 10% greater.
The FSK900 was mostly made of aircraft aluminum alloys, with some control surfaces made of carbon-fiber / epoxy composite, plus very selective use of titanium. It had high-mounted swept wings, with a supercritical airfoil section and a leading-edge dogtooth; a conventional swept tail assembly; tricycle landing gear; twin engines, one mounted in a pod along each side of the fuselage; and a tandem-seat cockpit with dual controls.
The wings had a sweep of 27.5°, an anhedral droop of 7°, and featured ailerons for roll control as well as double slotted flaps. The tailplanes were all-moving, and also featured an anhedral of 7°. An airbrake was mounted on each side of the rear fuselage. Flight controls were hydraulic, and hydraulic systems were dual redundant.
The instructor and cadet sat in tandem, both on zero-zero ejection seats, with the instructor's seat in the rear raised 27 centimeters (10.6 inches) to give a good forward view. The cockpit was pressurized and featured a one-piece canopy, hinged open to the right, that provided excellent visibility.
The landing gear assemblies all featured single wheels, with the nose gear retracting forward and the main gear retracting forward and into the fuselage, featuring an antiskid braking system. The twin engines were two Williams International FJ44-4M turbofans without reheat, each rated at 16.89 kN (3,790 lbst). These were the same engines, that Saab had also proposed for Saab’s Sk 60 modernization program, even though a less powerful variant for the lighter aircraft.
The FSK900 could be fitted with two pylons under each wing and under the fuselage centerline, for a total of five hardpoint. The inner wing pylons were wet and could be used to carry 450 liter (119 US gallon) external tanks, a total external payload of 2,500 kg (5,500 lb) could be carried.
External stores included a centerline target winch for the target tug role, an air-sampling pod for detection of fallout or other atmospheric pollutants, jammer or chaff pods for electronic warfare training, a camera/sensor pod and a baggage pod for use in the liaison role. The aircraft also featured a baggage compartment in the center fuselage, which also offered space for other special equipment or future updates.
Potential armament comprised a conformal underfuselage pod with a single 27 mm Mauser BK-27 revolver cannon with 120 rounds (the same weapon that eventually went into the Saab Gripen).
Other weapons included various iron and cluster bombs of up to 454 kg (1.000 lb) caliber, unguided missiles of various calibers and the Rb.74 (AIM-9L Sidewinder) AAM. A radar was not mounted, but the FSK900’s nose section offered enough space for a radome.
The Swedish Air Force accepted the Saab design, leading to a contract for two nonflying static-test airframes and four flying prototypes. Detail design was complete by the end of 1993 and prototype construction began in the spring of 1994, leading to first flight of the initial prototype on 29 July 1994. The first production "Sk 90 A", how the basic trainer type was officially dubbed, was delivered to the Swedish Air Force in 1996.
In parallel, a contract was signed for the re-engining of 115 Saab Sk 60 aircraft in 1993; the number of aircraft to be upgraded was subsequently reduced as a result of cuts to the defense budget and the advent of the FSK900, of which 60 were ordered initially.
The Sk 90 was regarded as strong, agile, and pleasant to fly, while being cheap to operate. Sk 90 As flying in the training role typically painted in the unique “Fields & Meadows” splinter camouflage, although decorative paint jobs showed up on occasion and many aircraft received additional dayglow markings.
Some of the few aircraft given to operational squadrons, which used them for keeping up flight hours and as hacks, had apparently been painted in all-grey camouflage to match the combat aircraft they shared the flight line with.
With the Sk 90 S a new variant was soon introduced, replacing the Sk 60 C, two-seat ground attack/reconnaissance version for the Swedish Air Force with an extended camera nose. It featured a similar camera arrangement to the Sk 60 C with a panoramic camera, plus an avionics palet in the baggage compartment for a modular DICAST (Digital Camera And Sensor Tray) pod under the fuselage. Unlike the Sk 60 C, which was converted from existing Sk 60 A trainers, the Sk 90 S was an original design. 20 were delivered until 1997, together with the standard trainers, which were kept on the production lines at slow pace until 1999.
A total of 108 production Sk 90s were built, and the Swedish Air Force has no further requirement for new Sk 90s at present. Upgrades are in planning, including fit of at least some Sk 90s with a modern "glass cockpit" to provide advanced training for the Saab Gripen (which had entered service in June 1992), and a full authority digital engine control (FADEC) for the FJ44-4M turbofans. Integration of the Rb.75 (the AGM-65A/B Maverick in Swedish service) together with a pod-mounted FLIR camera system was also suggested, improving the Sk 90’s attack capability dramatically. These updates were started in 2000. The modified aircraft received the designation Sk 90 B and Sk 90 SB, respectively, and until 2006 the whole fleet was updated.
Tests were also made with reinforced underwing pylons that would allow the carriage of the RBS-15 anti-ship missile. Even though the Sk 90 did not carry a radar, the missile-armed trainers were considered as a linked multiplicators for Saab 39s with the appropriate avionics, so that salvoes of multiple missiles could be launched in order to overload ship defences and improve hit probability. While the latter assumption was proved as correct during field trials with two modified Sk 90s, the missiles’ extra drag and the consequent loss in agility, speed and range made the concept unpractical, since the armed Sk 90 could not keep up with the Saab 39, limit reaction time and would offer an easy target.
Another plan was the Sk 90 C, a two-seater with enhanced attack capabilities. Its most distict feature was a simplified PS-05/A pulse-Doppler X band multi-mode radar, developed by Ericsson and GEC-Marconi for the JAS 39 Gripen.
The system was based on the Blue Vixen radar for the Sea Harrier that also served as the basis for the Eurofighter's CAPTOR radar, and it would allow a highly improved air-to-air and air-to-ground capability, also in better concunction with the Saab Gripen as lead aircraft. Two technology demonstrators were converted from Sk 90 A trainers, but the project was shelved - due to budget restrictions and simply through the fact that the JAS 39 Gripen offered anything the Swedish Air Force had called for in just one, single weapon system, so that the Sk 90 remained in its advanced trainer and tactical recce role. The technology package was offered to foreign customers, though.
Despite its qualities and development potential, the Sk 90 did not attain much foreign interest. It suffered from bad timing and from the focus on domestic demands. It came effectively 10 years too late to be serious export success, and the Sk 90 was very similar to the Dassault/Dornier Alpha Jet (even though it was cheaper to operate) - at a time when the German Luftwaffe started to prematurely phaze out its attack variant and flooded the market with cheap second hand aircraft in excellent condition. Besides, the Saab Sk 90 had, with the BAe Hawk, another proven competitor with a long operational track record all over the world.
Modest foreign sales could be secured, though: Austria procured 36 Sk 90 Ö in 2002 (basically comparable with the updated Sk 90 B), replacing its Saab 105 fleet and keeping up its close connection with Saab since the Seventies. Malaysia showed interest, too, as well as Singapore, Myanmar, Finland, Poland and Hungary.
The latest interest came from the Republic of Scotland in late 2017 – after the country’s separation from the United Kingdom and building an independent air force with a supplier from a neutral country.
The Republic of Scotland’s Air Corps (RoScAC) started negotiations with Saab and the Swedish government over either eight newly built or refurbished, older Sk 90 As that were updated to C standard with the PS-05/A radar.
Scotland additionally showed interest in a small fleet of 1st generation Saab 39 interceptors that would replace the RAF fighters based on Scottish ground.
General characteristics:
Crew: two pilots in tandem
Length incl. pitot: 13.0 m (42 ft 8 in) for the A trainer, 13.68 m (44 ft 10 in) for the S variant
Wingspan: 9.94 m (32 ft 7 in)
Height: 4.6 m (15 ft 1 in)
Empty weight: 3,790 kg (8,360 lb)
Max. takeoff weight: 7,500 kg (16,530 lb)
Powerplant:
2× Williams International FJ44-4M turbofans without reheat, rated at 16.89 kN (3,790 lbst) each
Performance:
Maximum speed: 1,038 km/h (645 mph)
Range: 1,670 km (900 nm)
Armament:
No internal gun; five hardpoints for 2,500 kg (5,500 lb) of payload and a variety of ordnance
The kit and its assembly:
A simple kit travesty! This is basically the 1:72 Kawasaki T-4 from Hasegawa, with little modifications.
Originally, I wondered what an overdue Saab 105 replacement could or would look like? The interesting Saab 38 never saw the light, as mentioned above, there was also an A-10-style light attack aircraft (maybe to be built as a kitbashing some day...) and I assume that neutral Sweden would rather develop its own aircraft than procure a foreign product.
Consideration of the BAe Hawk, Alpha Jet and the L-39 Albatros as inspirations for this project, I eventually came across the modern but rather overlooked Japanese Kawasaki T-4 trainer – and found that it had a certain Swedish look about it? Hmm... And coupled with a very characteristic paint scheme, like “Fields & Meadows”, maybe…?
I wanted to keep things simple, though, so the T-4 was mostly built OOB. A pleasant experience. The kit is relatively simple and fit is very good, with only minimal PSR necessary.
The only changes are the underwings hardpoints, which come from a Heller SEPECAT Jaguar, the pair of drop tanks (from an Academy F-5E, IIRC), a scratched recce pod for the ventral hardpoint and a modified bow section. This camera nose is a transplant from a Marivox Saab 105, assuming that the new trainer would be employed in similar roles as the Sk 60. The respective Swedish kit comes with a lot of optional parts, including the extended Sk 60 C’s camera nose - and it fits very well onto the T-4's rounded nose.
Painting and markings:
Well, when building a kit is not a true challenge, maybe the paint job is? The T-4 in a "Fields & Meadows" livery was the initial inspiration for this build, so I tried to stick with the concept as far as possible, even though I'd assume that Swedish aircraft in the kit's time frame would rather be grey with subdued markings. But there's hardly anything as Swedish and spectacular as "Fields & Meadows", and this scheme would also be perfect for the tactical recce role of this build.
The pattern was loosely inspired by the Saab Viggens’ scheme (I found pictures of Sk 60 in Fields & Meadows, but could not puzzle together a complete view) as benchmark.
Painting was done with a fine brush (size 2), free-handedly. Even the waterline was created without masking tape - a clean, bigger brush (size 6) was enough to create the sharp edge. This sounds bizarre and maybe suggest a masochistic touch, but it actually worked better than expected - and I was in the lucky situation that I did not have to slavishly copy and recreate the splinter pattern on a real-world model. ;-)
Finding proper tones for the famous and very characteristic Swedish paint scheme was not easy, though. Pictures of real aircraft vary largely, light conditions and weathering make a proper identification difficult, to say the least. Since I wanted a simple solution (a lot of corrections during the painting process was expected), I settled upon the following enamel tones:
• Modelmaster 2060, RAF Dark Green
• Humbrol 150, Forest Green FS 34127
• Humbrol 72, Khaki Drill, for the earth tone
• A 1:1 mix of Humbrol 33 (Flat Black) + Modelmaster 2094 (RAL 7021) for a very dark grey
• Humbrol 247 (RLM 76) for the undersides
Painting was done from black (starting here because it was the only mixed tone), then the earth tone, light green and finally the dark green - a slow (2 full days) but rather uncomplicated process. But I think that the effort paid out, and helps selling the fictional Sk 90 idea.
The cockpit was painted in neutral grey, while the landing gear and the air intakes became white. A very Swedish touch are the bright green headrests - seen on Saab 37.
The markings were kept simple, puzzled together from various sources. Tactical codes come from a Heller Saab 37 Viggen sheet, while the roundels come from an RBD Models sheet (great stuff!) from Sweden - they actually belong to a Saab 32, but since the roundel sizes are normed the transplant onto the smaller aircraft here was easy and even plausible.
Some stencils were taken from the T-4 OOB sheet or gathered together from the scrap box, e .g. the "FARA" warnings.
The silver trim at the flaps and the fin rudder were made with generic 0.5mm decal stripes in silver. Similar strips in black were used to create the de-icers on the wings' leading edges.
Finally, the kit was sealed with matt acrylic varnish (Italeri).
Not tough to build, but still a challenge to paint. But the result is spectacular, and the T-4 under foreign flag looks disturbingly plausible. How could Sweden hide this aircraft from the public for so long...?
And it's certainly not the last T-4 I will build. A Scottish aircraft, as mentioned in the background, is a hot candidate - but the aircraft has a lot of OOB whiffing potential...
Despite the numerals on the doors, this is the Third Class end of the coach. The right hand four or five compartments were from one of the two SER Third Class and one First Class six wheelers that were incorporated into the prototype composite coach.
Lawrence Livermore National Laboratory scientists developed high-performance, lightweight fiber-composite materials for national security programs and a variety of demanding applications, including use for energy storage flywheels. Resin-impregnated fiber strands are shown wound onto a loomlike mandrel, where they will be cured and then tested.
Composite Infra Red photo of Foz Do Iguasu waterfall on the Brasilian side. The composite IR is a combination of a 970 nm infra red and a visible light photo.
A composite image using Expedition Everest, some Happily Ever After fireworks and a starfield that I photographed in March. Comments / Criticism welcome!
internal battle with myself?? ;)
first attempts at a composite! i have to say this is my first try... and also my favorite!!!
EXPLORE.... October 9, 2007
Composite image formed from 9,900 source images from Flickr, all tagged "Antarctica".--
More stuff by jbum:
German-speaking lands (Germany, Austria, Switzerland, and parts of neighboring countries) and Italy, 1460-1500 with modern additions.
The vambraces (arm defenses) are not a matched pair, and were made by different master armourers. They were part of the cache of armour found in the fortress of Chalcis on the island of Euboea, Greece, known as the "Chalcis Hoard".
Quick-Look Hill-shaded Colour Relief Image of 2014 2m LIDAR Composite Digital Surface Model (DSM).
Data supplied by Environment Agency under the Open Government License agreement. For details please go to: www.nationalarchives.gov.uk/doc/open-government-licence/v...
For full raster dataset go to: environment.data.gov.uk/ds/survey
Composite shot with three merged images. Work in progress.
2 images from Pentax k3 and one from iPhone 6
Eva-Last, Infinity, Oasis Palm, Composite Decking, Eva-tech, Xavia Tri-extruded Aluminium Bamboo Composite
virgin of guadalupe mosaic on mausoleum wall. austin texas. a lot of time and effort went into this mosaic. the composite image took about 45 minutes. taken with the mini IQ.
I heard some of your suggestions in class after I shot these. But if you have other suggestions about my idea that I could make this picture better if you don't like it, then I will re-shoot this.
Tony & Ray look for evidence constituent six wheel SER coaches. The large mahogany panels show that the four compartments on the left were once First Class. The other doors have horizontal boarding instead.
Taken with a Cannon Rebel EOS XS. Used about 40 individual pictures. Put together manually using Photoshop. Inspired by David Hockney
Shane Neville.
4th degree Zen Do Kai, 3rd degree Krav Maga and 2nd degree in Muay Thai.
An image I took of him in his Gym then dropped him on a street scene for fun.
Quick-Look Hill-shaded Colour Relief Image of 2014 25cm LIDAR Composite Digital Surface Model (DSM).
Data supplied by Environment Agency under the Open Government License agreement. For details please go to: www.nationalarchives.gov.uk/doc/open-government-licence/v...
For full raster dataset go to: environment.data.gov.uk/ds/survey
There are 10 people in the swap. Each person makes a zentangle string and then cuts it in either 9 or 10 pieces (depending on whether they want to do a piece of their own). They then mail all the pieces out to their partners (one piece to each partner). The partners complete the pieces and send them back to the owner (the person who drew the string). When all the pieces are received they will be put back together in one large COMPOSITE zentangle!
This is the piece that @dobie256 sent me - I tangled it and have now sent it back to her!