The manufacture was WRONG and I proved it!
TLDRIn the video, the narrator disputes a claim made by a manufacturer in their training videos about the optimal way to right a vehicle that has rolled over. The manufacturer suggests that attaching a chain to the high frame rail rather than the low one provides more downward force, which helps to upright the vehicle. The narrator, however, argues that this is incorrect and that the point of attachment does not affect the force required to flip the vehicle. To prove his point, he conducts an experiment using a school bus, a load cell to measure the force, and a variety of attachment points. The results consistently show no difference in the force required to right the bus, regardless of whether the chain is attached to the high or low frame rail, or even just to the window frame. The narrator emphasizes the importance of leveraging basic physics in recovery operations and criticizes the manufacturer's advice as misleading. He concludes by stating that the easiest and most accessible point on the vehicle that can safely support the operation is the best point to attach the recovery equipment.
Takeaways
- 🔍 The video aims to test and debunk a claim made by a manufacturer in their training video about the force exerted when righting a vehicle by attaching a chain to different frame rails.
- 🤔 The claim stated that attaching to the high frame rail provides more downward force, which helps right the vehicle. The video's author disagrees, arguing that physics dictates no difference.
- 😡 The author received negative feedback from online experts, accusing him of being wrong and an idiot for disputing the manufacturer's claim.
- 🧐 A load cell with a wireless readout is used to measure the force exerted during the righting process to prove the point.
- 📐 The experiment involves righting a bus by attaching the chain to different points: low frame rail, high frame rail, and window frame to test the manufacturer's claim.
- 📈 The load cell readings are consistent across different attachment points, suggesting that the force required to right the bus does not significantly change regardless of where the chain is attached.
- 🔧 The author emphasizes the importance of using the easiest and strongest point on a vehicle for attaching recovery equipment, rather than following incorrect advice that could complicate the process.
- 🚫 Safety is a priority; the author takes precautions to prevent accidents during the experiment, such as keeping his dog away from the operation.
- 📚 The video is not meant to criticize the manufacturer or the experts but to correct a specific point in the training video that the author believes is incorrect based on basic physics.
- 🔗 The concept of leverage is key; the author explains that the force required to right a vehicle decreases as the vehicle approaches the balance point, regardless of the attachment point.
- 🎬 The video concludes by righting the bus without any major incidents, demonstrating that the author's understanding of physics and the righting process is accurate.
Q & A
What was the main point of disagreement between the speaker and the manufacturer's training video?
-The main point of disagreement was about the method of attaching a chain to a vehicle that has rolled over. The manufacturer's video claimed that hooking the chain to the high frame rail rather than the low frame rail would result in a different amount of force acting on the vehicle during the recovery process. The speaker disagreed, stating that the point of attachment does not change the force applied.
What did the speaker use to prove his point about the force applied during the recovery process?
-The speaker used a load cell with a wireless readout to measure the force applied during the recovery process. He conducted tests by attaching the chain to different points on the vehicle to compare the force readings.
What was the speaker's conclusion after conducting the tests with the load cell?
-The speaker concluded that the point where the chain is attached to the vehicle does not affect the amount of force applied during the recovery process. The load cell readings were consistent regardless of whether the chain was hooked to the high or low frame rail, or even to the window frame.
Why did the speaker emphasize that his demonstration was not meant to criticize the manufacturer?
-The speaker emphasized this because he recognized that the manufacturer is a top industry leader and the people in the video were knowledgeable experts. His intention was not to discredit them but to correct a specific point that he believed was incorrect in their training video.
What safety precaution did the speaker take before starting the demonstration?
-The speaker made sure to send his dog, Rusty, away from the operation area to avoid any potential harm to the animal during the demonstration.
What was the speaker's final recommendation for choosing a point of attachment during a vehicle recovery?
-The speaker recommended choosing the easiest and most accessible point that is strong enough to perform the recovery task, as he demonstrated that the point of attachment does not affect the force applied or the leverage needed.
Why did the speaker choose to use a school bus for the demonstration?
-The speaker chose a school bus because it provided a large and stable platform for the demonstration. Additionally, the bus's structure allowed for various points of attachment to be tested easily.
What was the speaker's opinion on the internet experts who disagreed with him?
-The speaker felt that the internet experts were rude and dismissive, and he was motivated to prove his point not just for himself, but also to counter their negative comments.
What was the role of the Zack lift in the demonstration?
-The Zack lift was used to perform the actual lifting and uprighting of the bus. It was also used to control the tension and direction of the lifting链条 (chain) during the recovery process.
Why did the speaker believe that the termination point of the rigging on the vehicle does not matter?
-The speaker believed that once the rigging's angle and point of connection to the vehicle (the fulcrum) are established, the termination point beyond that does not affect the leverage or the amount of force applied.
What was the speaker's final action after proving his point?
-The speaker's final action was to upright the bus completely and set it back down on its wheels, demonstrating a smooth and controlled recovery process.
Outlines
😀 Debunking Recovery Training Myths
The speaker addresses a controversy regarding the proper technique for righting a flipped vehicle. They refute a claim from a training video by a respected manufacturer, which suggests that hooking a chain to either the high or low frame rail affects the force required to flip a vehicle. The speaker is motivated to prove their point using a load cell and a school bus, aiming to demonstrate that the actual point of attachment, contrary to the video's advice, does not significantly change the force required.
🔧 Practical Physics vs. Training Videos
The speaker elaborates on the disagreement with the training video, expressing skepticism about the logic that hooking to the high frame rail provides more downward force. They argue that since both rails are connected by steel crossmembers, the physical effect should be the same regardless of which rail is used. The speaker plans to test this by righting the bus using different attachment points, including the window frame and the high and low frame rails, to measure the force required in each case.
📏 Conducting a Rigorous Test
The speaker describes the process of setting up the test using a load cell to measure the force exerted during the righting of the bus. They ensure that the test is controlled by using a roll back and a Zach lift to manipulate the bus. Emphasis is placed on safety and precision, with the speaker taking care to avoid slack in the line and to manage the bus's descent carefully. The goal is to find the balance point and then to use the Zach lift to lower the bus once the roll back has done the majority of the pulling.
🤔 Questioning Manufacturer's Advice
The speaker continues to challenge the advice given by a specific manufacturer and an expert training company, questioning the logic behind their recommendation to hook to the high side frame rail first. They argue that the physical connection between the top and bottom frame rails should mean that the force exerted on one should affect the other equally. The speaker sets up to test various points of attachment, from the window frame to the extreme opposite end of the bus, aiming to show that the point of attachment does not affect the force required.
📈 Analyzing the Load Cell Results
The speaker discusses the results from the load cell during the bus righting process. They highlight that the force required to lift the bus does not change significantly based on where the chain is attached. The peak force observed was consistent across different attachment points, contradicting the manufacturer's advice. The speaker emphasizes that the ease of the pull reduces as the bus nears the upright position, and they document the process photographically for evidence.
🔄 Experimenting with Different Rigging Points
The speaker conducts further tests by changing the rigging points on the bus, from the low side frame rail to the high side and then to the extreme points of rigging around the entire bus. Despite the manufacturer's claim that rigging to the high side frame rail would result in less weight or more downward force, the load cell readings remain consistent. The speaker maintains that the point of attachment beyond the fulcrum does not affect the leverage or the total amount of weight being dealt with.
🏁 Conclusion and Final Upright
The speaker concludes the experiment by reiterating that the point of attachment for the rigging does not impact the force required to right the vehicle. They emphasize that the only factor that matters is the angle at which the rigging pulls in relation to the fulcrum. The speaker shares their frustration with being criticized by online experts despite being correct based on physics. They finish by safely righting the bus completely and commend the performance of the Zack lift in the recovery process.
Mindmap
Keywords
💡Load cell
💡Manufacturer
💡Frame rail
💡Zach lift
💡Roll back
💡Wireless readout
💡Rigging
💡Tipping point
💡Leverage
💡Fulcrum
💡Termination point
Highlights
The speaker challenges a manufacturer's claim about the force exerted when flipping a vehicle, using a load cell to test the theory.
A wireless readout is used to measure the force during the experiment to determine the validity of the manufacturer's training video.
The experiment involves flipping a bus to compare the force required when attaching the chain to different frame rails.
The speaker emphasizes the importance of accuracy in training videos, especially when they are used as educational resources.
A remote control is used to operate both trucks during the bus flipping process, allowing for precise control.
The balance point of the bus is identified, demonstrating the stability of the vehicle's structure.
The force required to upright the bus is measured at different attachment points to the frame rails.
The speaker disputes the manufacturer's advice on attaching to the high side frame rail for more downward force, arguing it defies basic physics.
The experiment shows no significant difference in force required when attaching to different points on the bus.
The speaker discusses the concept of leverage in relation to the force exerted during the bus flipping and the importance of the fulcrum point.
The load cell's readings are consistent across different attachment points, proving the speaker's point about the irrelevance of the termination point.
The speaker suggests that the easiest and most accessible point on a vehicle is the best for attaching recovery equipment, contrary to the manufacturer's advice.
The experiment concludes with successfully uprighting the bus using the speaker's preferred method, which involved less complexity.
The speaker emphasizes that the total amount of weight being dealt with cannot be changed, only the leverage and pull can be adjusted.
The speaker addresses criticism from experts, defending the correctness of his approach and the results of the experiment.
A certified load cell is used to ensure the accuracy of the force measurements during the experiment.
The speaker passionately defends his position, highlighting the importance of standing by one's convictions when proven correct.
The experiment demonstrates a practical application of physics in vehicle recovery, providing valuable insights for the industry.