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Official FVD (Force Vector Design) Thread
NoLimits Coaster

Working with Batman in FVD for 6 months and another recreation, I could not achieve the exact shaping of the track — with the references — without the use of lateral. My references also consist of having imported google earth models. Google earth models are a huge help but I still need to make sure the track’s orientation, banking, and ‘incidental characteristics’ in the trackwork is identical, thus I check every angle from medias to make sure it’s oriented accurately, and ride experience both from media and simulator.

I did everything I can to not touch lateral, and I used to believe that I should avoid lateral completely at all cost when creating transitions, slowly became accepting, then being openly to experiment with laterals. I’ve always experiment and work without lateral first, I think theoretically in my head. Hypothetically it feels like it shouldn’t have any laterals, which I am right at times, but to my surprise a lot of the times after struggling to manipulate the transition over and over, I decided to finally implement laterals into the trackwork, after that I was able to achieve the exact banking or any of the characteristics I need it to show in the transitions.

After from what I learned and observing other B&Ms, I’m surprised how much lateral have been used.

May not be talking about loops now but this is my first FVD coaster, well the loop did not use lateral but the helix did at the bottom which was inspired by Talon.

But perhaps my loop post is more for smaller size loops.

This is my Batman recreation below with reference.

My loops before using lateral did not have that identical look I needed at specific points of view. Batman’s drop transitioning to the loop — before I decided to use lateral — was not banked enough, it didn’t look like the references until after I decided to go that route. I didn’t have to second guess whether the shaping was correct or not anymore, because it looks exactly like my references now.

Main focus with the photos below is the helixes that uses lateral, before using lateral, my helixes were wobbly and were either banking too much or too little and didn’t have a consistent flow than it did with the real POV until I implemented the laterals.

Lateral mode

Next is my Hydra recreation, which has incredible use of lateral. My references includes stripped google earth’s models and many medias too.

I want to point out that the transitional beginning of the first flatspin— the 4th inversion, before the cobra roll — of Hydra’s took me roughly a week to figure out, the transition was difficult to achieve until I used lateral, then it became identical to my references.

Lateral mode

This is the track graph which starts at the first drop. Between the dash lines is the zero g roll section that uses geometric section than force section. Before and after the zero g roll section are force sections

Down below is a test pov of Hydra.

Comparison of real POV and FVD, real POV is running faster than anticipated, running at .026 than the recommended friction values NL-Central suggest which is .031. Thus FVD has a bit of a head start.

https://i.imgur.com/O3xDiFn.mp4

I think my argument here is that, it’s nice to see our graphs clean and simplified, and we all understand the final process of the ride being imported into Nolimits or real life is that there are going to be incidental laterals. An example element: a wingover/flatspin, we understand we’re not in the middle of the exact heartline, but they typically though give you laterals past 1.0-2.0 Gs naturally. What I’m getting at is, the loop I demonstrated above for example is a 10th of a fraction of your body weight, the graph’s lateral is around 0.1-0.2 Gs.

There’s aught to be laterals no matter what, we all understand that from not being exactly in the heart-line, but just because some laterals are implemented purposefully doesn’t mean it is bad, 1/10 of lateral force to your body is not close to it being bad, nor is it even noticeable at all. Sometimes necessary, and what I think also is perhaps is that the lateral isn’t necessarily there for the rider’s experience but perhaps it reduces the train’s stress, or/and easy way, intuitive, and non concerning way to create transitions for coasters.

Here’s my Batman POV, the highest lateral implemented into the trackwork design is around 0.6-0.7 Gs.

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Lift Hill Zero G roll Cutback into airtime hill into 5 g turn into an insane ejector hill into a zero g stall into a corckscrew into a cobraroll into a flying snake dive with some snappy s bends into the brakes for the layout

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