After opening TBC, engineering has new benefits. There are new teleporters for both systems to learn. Goblin engineering goes to Area 52, and gnome engineering goes to Blade's Edge Mountain. Many people know that the teleporter in Area 52 is a neutral city, but the teleporter in Blade's Edge Mountain is not necessarily so, especially for the tribe, because the NPC who is studying is actually in the alliance camp!
The teleporter is a very useful thing. It is very good to use the dwarf engineering in the 1960s to pass through Gadgetzan, fly to Cenarion Fortress with Ahn'Qiraj, play the Caverns of Time with TBC, and teleport the classic old world. They are all very good. After TBC has flying mounts, the role of teleporters has declined, but teleporting every 4 hours can also save a certain amount of time.
Gnome Engineering can learn Blade's Edge Mountain Teleporter. First, we flew to the Alliance camp "Toshrei's Base" in Blade's Edge Mountains. Toshrei is a small dwarf who is an NPC in the Alliance who learns teleporters. But this NPC has a red name, and the tribe cannot talk to or learn from it, and he will be beaten by the guards when he gets close.
Don't worry, there is a teleporter not far from the north exit of this camp. We will find a green-named NPC named "Smiling Billund" to learn from.
You can learn it from the first option in the dialogue, which requires an engineering major of 350. If there is no dialogue, you need to check whether the skill level is enough.
To be honest, this teleporter is not cheap. It requires two original airs, a krypton gold energy core and so on. If the teleporter is used for 4 hours, please try it out to see if there will be sudden failures such as the Gadgetzan plane crash or the fire in Everlook.
This NPC is so close to the alliance camp, so students who are inferior to the tribe should be careful when passing by.
Okay, I hope this helps everyone.