This homemade roller coaster -- sent in by reader Mark -- could quite possibly be the fastest one we've seen yet, and it even has banked turns to keep things safe at
Here’s a fully-functional roller coaster by John Ivers in his backyard called the “Blue Flash”. The Blue Flash is a 180 foot long home-made welded and made roller coaster featuring a 360-degree loop and works safely.
“Style: Out and Back
Height: 17 feet
First Drop: 20 feet
Top Speed: 20 mph
Track Length: 444 feet
Max Positive G’s: 3.5
Max Negative G’s: -0.2
Material: Pressure Treated Southern Yellow Pine
Number of Drops: 4
Lift hill angle: 26.6 degrees
1st Drop: 54 degrees
2nd Drop: 43 degrees
Curve banking: 50 degrees
Duration: About 1 minute
Cart: Single Car, Wood and Steel Construction
Capacity: Single Rider
Chain Lift: 1HP Motor, 3/4″ Pitch Roller Chain/Sprockets
Overall:
9,500 lbs (4.75 Tons) Lumber
7,000 Screws/Nails
2,900 board feet of lumber
Investment: $5.5k ”
Via: Micsaund
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