Monday, February 20, 2017

Stay Tuned - A Biker's Sonar

Group Ride - Laughlin - February 11, 2017

During our recently completed Laughlin Ride weekend I had plenty of opportunities to contemplate the phenomenon of the group ride. We had the rides out and back to Laughlin that grew in numbers at various meet points along the way out and that dwindled at freeway junctions on the way home and then we had a fun-ride filled with potholes, canyon runs with twisties, mountain passes with twisties, and a town full of burros – vigilance required at every stage.

For the record, I consider anything from three bikes on up to be a group ride. Two bikes is pairs-riding even though many of the things I’ll talk about below apply, it feels like a different animal to me to the point that I have a different bikers’ solute for three or more riders in a line where I go from the easygoing down-low salute to a fist pump, my Howitzer solute for the last rider in the line.

When we ride we need to use all our senses to maintain a heightened degree of situational awareness. I confess though that as I write this I’m struggling with where the sense of taste comes into play, feel free to weigh in on this. Your sense of smell can tell you about skunkage on the road ahead or a particularly nasty diesel truck laboring around the next bend. Our sense of touch helps integrate us with our own machine and how it’s running as well as tell us about the condition of the tarmac under our wheels.

Our sense of hearing in a group ride is our rider’s sonar as we take in information from other riders, the road, and drivers. Let me set the stage at bit; the two most well-known types of sonar for those of not working with the technology are active and passive sonar.

Active sonar is where the device sends out a ping and listens for the echo off a given target to measure size, distance and speed of the object. I can draw a little parallel here for riders’ sonar such as when our eyes lock onto an item of interest and our ears tune in for confirmation as when we see flashing lights we listen for the siren to tell us if it’s moving or stationary. This tells us what the signature is of the obstacle we are about to encounter. It’s not a perfect corollary but it works for me.

Passive sonar is strictly listening. Naval vessels, particularly submarines, use sonar to locate targets or obstacles. Submarines live and die by sonar, both active and passive. Regarding the sub’s passive sonar; it is a system of listening devices at various points on the sub or even trailed in the water behind. These are all fed into computers these days that run algorithms to tell range, speed, and location. One of the best examples of passive sonar use that comes to mind can be found in The Hunt for Red October where Jonesy detects the Russian sub and its revolutionary propulsion system. The link to the relevant scene is found at the end of this post.

Our riders’ passive sonar is hardly passive; it requires us to tune into all the relevant noises around us while filtering those extraneous sounds from cluttering up our attention. While riding in a group, particularly from the number three spot back to the sweep, we need to listen to the sounds of those ahead of us. Decelerations in RPMs, even backfires, warn us of a pending need to slow down. Accelerations tell us where we can expect to speed up through an apex on the turn. Break lights are fine but if like me, you happen to riding behind folks who are particularly adept at throttle control and the use of gearing to maintain proper speeds, their engine sounds are a vital clue.

Of course, our vision is number one. There is no substitute for seeing and being seen. Our eyes must tune to the road ahead to pick out lines through the twisties, road hazards, the action of other drivers and riders, and seeing the riders in front point out road hazards and giving warning hand signals. Lifehack has a nice article called ’12 Motorcycle Hand Signals You Should Know’:


Regarding the thought that loud pipes saves lives; if that is where you put your trust then you ride in a weak position. Relying on someone in a cage with the sound system blaring and kids screaming or passengers yammering in a car that advertised itself as quiet is trust ill placed. Personally, I prefer relying on being seen and knowing that I’ve been seen and even when I know I’ve been seen I don’t trust that the driver isn’t a nutcase. I spend precious little time in anyone’s blind spot.

The bottom line is to keep our senses finely tuned to the ride and everything about our riding environment. So tune in first, put your kickstand up second, and enjoy the ride. 

Keep it real and keep the iron side up.

Peace

jerry

UTube link to Jonesy’s Report in The Hunt for Red October:


2 comments:

  1. Facebook comment from Jspriders Scv: Great formation and that helmet cam does a real good job.

    ReplyDelete
    Replies
    1. Thanks, I like it. As long as I remember to remove the lens cap and check the angle of the lens. The earlier photos from this ride made it look like we were riding on a 25% angle and you know the worst about me missing some good stuff heading out of Oatman. Now the plan is to improve my video editing...always something.

      Delete