Sep 21 2019 (18:44)
1) The oldest being the ICF Rajdhani coaches & old from nineties
As per my observation this may be the only 3-phase loco/WAP 7 to have typical so called 3-phase horns in one cab & conventional horns in the opposite cab

Sep 21 2019 (17:34)
3) The concept of HOG which although was devised long back though with 30277 being the first loco with HOG capabilities but a rapid, large scale implementation can be witnessed in present current scenario of IR

As per my observation this may be the only 3-phase loco/WAP 7 to have typical so called 3-phase horns in one cab & conventional horns in the opposite cab

Sep 21 2019 (17:22)
1) The oldest being the ICF Rajdhani coaches & old from nineties
2) The concept of Duronto Express which evolved much later
3) The concept of HOG which although was devised long back with 30277 being the first loco with HOG capabilities but a rapid, large scale implementation in present scenario of IR
4) A DLW WAP 7
1) It's counter part i
2) The locomotive WAP 7 # 37043 happens to be the first WAP 7 of 37XXX series comissioned to ELS Ghaziabad
As per my observation this may be the only 3-phase loco/WAP 7 to have typical so called 3-phase horns in one cab & conventional horns in the opposite cab

Sep 21 2019 (17:18)
Loco Tag: GZB/WAP-7(I)/37043 added by dsourav895~/1188970