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The WAP-3 was the upgraded variant of the WAP-1 with a higher top speed of 140 km/h. All units of this class were WAP-1 units already in service. The first locomotive converted was a WAP-1 22005 Jawahar. Subsequently 8 more WAP-1 were converted, but since the class were not a great success and had performance issues, these were converted back ...
The WAP-4 class was developed after its predecessor, the WAP-1, was found inadequate to haul the longer, heavier express trains (24-26 coaches) that were becoming the mainstay of the Indian Railways network. IR/RDSO had realized that the reason for the WAP-1’s performance problems were the low-powered 770 hp Alstom TAO 659 traction motors.
This class provided the basic design for a number of other locomotives like WCAM-1, WAG-5A, WCG-2, and some WAP-1 models. However, with the advent of new 3-phase locomotives like WAP-5 and WAP-7, the WAM-4 locomotives were relegated to hauling smaller passenger trains and most of the units have been scrapped. A few units are in service ...
The locomotive can run even in 100% humidity, or in deserts, where there is high saturation of conductive particles. For shunting up to 15 km/h (9.3 mph), it can haul 7,500 tonnes (7,400 long tons; 8,300 short tons) on grades of 1 in 1000 (0.1%) or less. The atmosphere may be humid and salty.
In February 2017, Banaras Locomotive Works built their first WAP 7 class locomotive. [3] In 2019, a variant of the WAP-7, designated the WAP-7HS, was introduced for higher speeds. The WAP-7HS has a max speed of 180 km/h (110 mph), and is capable of hauling a 24-car train at 160 km/h (99 mph) as opposed to the 140 km/h (87 mph) of the original.
The original designation, XS-1, of the Bell X-1, a supersonic prototype airplane designed and built by the United States in 1945; XS-1 (spacecraft), a DARPA experimental spaceplane; Fujifilm X-S1, a superzoom digital bridge camera released in November 2011; XCore XS1 microprocessor
WAP four-disulfide core domain protein 2 - also known as Human Epididymis Protein 4 [5] (HE4) - is a protein that in humans is encoded by the WFDC2 gene. [ 6 ] [ 7 ] [ 8 ] HE4 is a tumor marker of ovarian cancer , with 80% sensitivity at a cut-off of 150 pmol/L. [ 9 ]
"MMMBop" was a major success worldwide, [1] reaching number one in at least 12 countries, including Australia, Canada, Germany, New Zealand, the United Kingdom and the United States. Its music video was directed by Tamra Davis .