I want to ride this.

I thought the riders were going to get murdered in the tunnel on the 2nd one

What is the roller slide thing in the second video?

Good for you.....

The first video is of this Senyo Kogyo jet coaster. http://www.rcdb.com/4492.htm

Unsurprisingly...

Longest 2 MPH lift ever.

Originally posted by slosprint

This looks amazing, especially the part where it just follows the road lol:

It looks boring and painful. It also looks like the designers can't tell the difference between "following the terrain" and "being too lazy/cheap to support any track more than 10 feet off the ground except for the lifts."
Speaking of lifts, they go about 2 MPH. I'm also not a fan of the long almost-straight sections where it slowly runs out of speed.

tl;dr this is an IRL version of cool5's oversized jet coasters.

Burn Rutsche [youtube]http://www.youtube.com/user/tuberides1#p/u/34/n7nn9sGnuqI[/youtube]

Aqua Rutsche
[youtube]http://www.youtube.com/user/tuberides1#p/u/35/915worer1Rk[/youtube]