De två ombyggda loken - 1421 och 1422 - fick litterat Rc7 och målades liksom de andra Blue X-fordonen om i en mörkblå färgsättning. Tanken var att anpassa även de tillhörande personvagnarna med littera A11 , B11 och RB11 för 180 km/h.

Rc7 was a rebuild of Rc6 meant to haul replacement trains needed when the X 2000 trains were canceled or delayed. Rc7 had a maximum allowed speed of 180 km/h. However, the maximum speed permitted without emergency electromagnetic track brakes is 160 km/h, and keeping extra carriages was considered too expensive.

SJ började ta emot leveranser av en ny loktyp för alla sorters trafik 1967, littera Rc. Med en ny styrteknik med s.k. tyristorer blev regleringen mera precis än med äldre tekniker.

Rc7. Rc7 fanns ett kort tag i början av 2000-talet när SJ hade långt gångna tankar att köra loktågen lite fortare, som ersättningståg för X 2000. Två Rc6-lok byggdes om för att kunna köras i 180 km/h och blev därmed Rc7. Man tänkte också bygga om ett …

In 2001 the EMUs X2, used in the express train X2000, needed a lot of repair so SJ needed trains to replace them, they was called unofficial Blue X and official IC 11 or X2000R. The meaning was to drive these trains with a max speed of 180 kph (113 mph) so two Rc6-locomotives were fitted with higher gear ratio and was given the type designation ...

When SJ wanted to modernise its electric locomotive fleet, the Rc locomotive was born. It is a bogie locomotive, with thyristor drive and substantial horsepower. These locomotives could be used for both freight and passenger traffic, and offered a slightly higher speed.

Rc7 was a rebuild of Rc6 meant to haul replacement trains needed when the X 2000 trains were canceled or delayed. Rc7 had a maximum allowed speed of 180 km/h. However, the maximum speed permitted without emergency electromagnetic track brakes is 160 km/h, and keeping extra carriages was considered too expensive.

Rc1 1007-1026: 4 LJH108 motorer på vardera 900 kW. 135 km/t. Byggda 1967–68 av ASEA i Västerås i samarbete med Vagn och Maskinfabriken i Falun, NOHAB i Trollhättan samt Motala Verkstad. Loken byggdes för både person- och godståg. Korgens färgsättning var ursprungligen rödorange, vit och mörkblå med ljusblått tak.

Company: Statens Jarnvagar Model: Rc7 Year: 1975 Propulsion: 15kV AC 16-2/3Hz Traction Motors: 4 x 900 kW (3600kW) Starting Tractive Effort: 290kN Continuous Tractive Effort: 169kN Maximum Speed: 200 km/h Driving wheel diameter: 1300mm Bogie Wheelbase: 2,700mm Length: 15,520mm Width: 3,150mm Height (over lowered pantograph): 4,500mm Weight: 78t

In 1964, SJ was in need of modern electric locomotives and ordered five thyristor locomotives type Rc (1007-1011) and 15 diode locomotives type Rd (1012-1026). They were based on experiments carried out with the Rb1-Rb3.