The answer will depend on "after how long"!
both ways: I am headed home. I am heading home. Use I am heading home because it is grammatically correct. "Headed" is the past tense of the verb so would be used to tell what was done in the past and not the current situation.
yes they do.
yes its name is going to be quadrinoid
Outbound trains are going from the station to another station. Inbound trains are arriving at a station from a different station.
Most model train and hobby stores sell HO trains, but it's still a good idea to find out in advance if a certain store you're heading to sells HO. This can be done by going to the store's website, which will most likely tell what model train gauges (sizes) it sells. Besides stores, there is an abundance of HO trains available online.
when heading for california many 49ers said they were going to see the
The direction you are going in.
You are going home
Going to
in 1589
All trains have different prices, depending on the company, where you're going, etc.
The RMS Titanic was heading for New York.