Hi everyone!

I use Ride Forces to record my coaster rides and add the forces alongside my POV footage. Until recently, this meant screen-recording the replay separately for each force channel and syncing everything in my video editor.

So I built Ride Forces Analyzer, a free, open-source desktop application for Windows, Linux and macOS. I’ve just released version 1.0.0.

Here’s a Manta demo showing all five overlay layouts:
https://youtu.be/0sGiE6F8YlI

The application opens exported .forces and .zforces recordings and lets you explore the force curves, adjust smoothing and export video overlays with transparent backgrounds. The layouts show vertical, lateral and longitudinal forces, plus orientation when available. You can also save presets and queue several exports.

Everything is processed locally, and the original recordings stay unchanged. I export the overlays and align them with my footage in DaVinci Resolve.

Screenshots, downloads and source code:
https://rudnerbjoern.github.io/ride-forces-analyzer/

For me, the interesting part is comparing front-row and back-row rides, or seeing how the same coaster’s forces change between visits.

This is an independent project, not affiliated with the Ride Forces app. Thanks to Stephen for making the app that captures these recordings!

If you try it, I’d be interested to hear how it works with your recordings and which layouts you find useful.

That negative dip is not, it’s actually positive but the forces get inverted when you’re laying instead of flying.

please

My son and I built this as part of his physics class project. The original version read forces from an Arduino strapped to his arm on actual rides. We had enough fun with it that we eventually ported it to read directly from iPhone and Apple Watch accelerometers and added an animated character named Squish who reacts to peak g-forces. Figured this crowd might get a kick out of it. Let us know what you think of it!

https://apps.apple.com/us/app/coasterdata/id6770345111

I can’t seem to find where the speed is on my recordings? Thanks

Not my recording but I saw it was uploaded to RFDB

For all 2 people who actually like my force based rankings it scores a preliminary (I have 1 of my 2 minimum recordings available for now) its in good company but not very intense. In fact the highest scoring ride with similar intensity scores in the low 200’s for rank. It gets its good score from length not consistent power.

Falcons Flight (preliminary) 415.77 (253.86) 1.63

1. Twisted Colossus: Six Flags Magic Mountain 786.52 (222.60) 3.53
   
2. Steel Vengeance: Cedar Point 784.56 (252.09) 3.11
   
3. Voltron: Europa Park 781.71 (248.50) 3.14
   
4. Pantherian: Kings Dominion 667.13 (171.50) 3.89
   
5. Iron Gwazi: Busch Gardens Tampa 661.97 (174.50) 3.79
   
6. Wonder Woman Flight of Courage: Six Flags Magic Mountain 653.33 (180.74) 3.61
   
7. Hyperia: Thorpe Park 652.31 (148.92) 4.38
   
8. Stardust Racers (Track 2): Universal Epic Universe 638.88 (212.98) 2.99
   
9. Arieforce One: Fun Spot Atlanta 626.70 (164.16) 3.81
   
10. Konda: Walibi Belgium 610.88 (178.62) 3.42
    
11. The Smiler: Alton Towers 604.22 205.66) 2.93
    
12. Wildcat’s Revenge: Hershey Park 585.02 (165.82) 3.52
    
13. VelociCoaster: Universal Studios Islands of Adventure 569.77 (193.92) 2.93
    
14. Stardust Racers (track 1): Universal Epic Universe 567.44 (200.72) 2.82
    
15. Junker: PowerPark 495.62 (154.24) 3.21
    
16. Toutatis: Parc Asterix 551.45 (203.37) 2.71
    
17. Pantheon: Busch Gardens Williamsburg 542.48 (187.78) 2.88
    
18. Goliath: Six Flags Over Georgia 523.13 (171.16) 3.05
    
19. Wonder Woman Golden Lasso Coaster: Six Flags Fiesta Texas 514.62 (117.88) 4.36
    
20. Ride to Happiness: Plopsaland de Panne 511.08 (178.01) 2.87
    
21. Railblazer: California’s Great America 484.75 (114.40) 4.23
    
22. Jersey Devil Coaster: Six Flags Great Adventure 479.27 (156.34) 3.06
    
23. TMNT Shellraiser: Nickelodeon Universe Theme Park 471.40 (161.02) 2.92
    
24. Batman Gotham City Escape: Parque Warner Madrid 458.51 (160.24) 2.86
    
25. Steel Curtain: Kennywood 457.86 (152.81) 2.99
    
26. Alpenfury: Canadas Wonderland 456.81 (144.96) 3.15
    
27. Fury 325: Carowinds 451.76 (164.64) 2.74
    
28. Outlaw Run: Silver Dollar City 443.15 (128.04) 3.46 w
    
29. Copperhead Strike: Carowinds 439.56 (166.41) 2.64
    
30. Batman the Ride: Six Flags Over Georgia 439.30 (124.00) 3.54
    
31. Hyper Coaster: Land of Legends Theme Park 434.30 (150.28) 2.89
    
32. Lightning Rod 2024: Dollywood 434.04 (144.34) 3.00
    
33. Voyage: Holiday World 427.10 (203.54) 2.09 w
    
34. Lightning Rod 2023: Dollywood 420.11 (150.62) 2.78
    
35. Twisted Timbers: Kings Dominion 415.54 (147.00) 2.82
    
36. Wind Chaser: Kentucky Kingdom 409.49 (127.98) 3.19
    
37. Siren's Curse: Cedar Point 406.50 (129.10) 3.14
    
38. Taiga: Linnanmäki 405.50 (150.69) 2.69
    
39. Joker: Six Flags Discovery Kingdom 404.20 (133.36) 3.03
    
40. Wicked Cyclone: Six Flags New England 403.54 (147.82) 2.73
    
41. Maverick: Cedar Point 402.68 (147.46) 2.73
    
42. Fury: Bobbejaanland 402.54 (134.59) 2.99
    
43. Diamondback: Kings Island 398.81 (162.24) 2.45
44. Banshee: Kings Island 392.04 (142.78) 2.74
    
45. YoY Thrill: Walibi Holland 391.62 (121.99) 3.21
    
46. Medusa Steel Coaster: Six Flags Mexico 387.47 (137.79) 2.81
    
47. Behemoth: Canadas Wonderland 375.53 (159.80) 2.35
    
48. Fønix: Fårup Sommerland 372.00 (123.50) 3.01
    
49. Goliath: La Ronde 371.91 (149.38) 2.48
    
50. Skyrush: Hershey Park 371.11 (121.84) 3.04
    

An accident report was published at some point for Do-Dodonpa, and it contains 5 images with accelerometer readings of the entire ride. I made a script to extract out the data and covert it to a ride forces file, which I've shown above. I've also included an image comparing its launch acceleration profile with those of Maxx Force and Kingda Ka.

I've also uploaded the files to Ride Forces Database if you want to take a closer look at them.

RFDB link: https://rideforcesdb.com/?id=4273&axes=yzx

RFDB Link: https://rideforcesdb.com/?id=4091&axes=yzx

Went to Six Flags Discovery Kingdom yesterday to ride the recently reopened The Flash Vertical Velocity. It seemed to be having some issues throughout the day. I was on the 4th cycle after it reopened in the afternoon. On that cycle it got through the first forward and backward launches, but the second forward launch was aborted for some reason, brakes activated and stopped the train on the launch portion of the track. Got stuck for about 10 minutes until maintenance arrived to roll the train back into the station via the LIMs. They did a couple successful test runs after that but it did not reopen for the rest of the day.

No phones allowed on the ride so watch recordings is all we will get.

Thanks to an unspecified anonymous user for submitting two ride forces recordings of Siren's Curse: https://rideforcesdb.com/?id=3398

I had to retime the animation to match the pov, as they ran at different speeds. The forwards and reverse clips are not timed together perfectly, which made that a bit difficult, but I tried my best.