Recent content by John Archer

In the real world, No, the small person holding the gun vs. a large person, the differences would be within the range of variables in each load (fire a gun 10 times, you will likely see 8-10 different speeds...all else being equal). For the gun that weighs the same as the bullet vs. gun against...

The engine would still be spinning.

I think we have different definitions of "better". I'm with LawrenceC Here (Former motorcycle road racing instructor for 5 years here). If I want to be very fuel efficient, provided the risks are low, I'm going to be cornering at a speed as close to the speed limit as is safe. I'll be choosing...

I suspect a silencer (slightly) reduces perceived recoil by spreading the recoil impulse out over a longer period of time. In addition to muzzle brakes, compensators (mostly used in pistols) use the gasses to direct the barrel downward to reduce muzzle flip.

While they have since added a chicane there, my experience was with the "Kink" at Road America. (After the Carousel and before Thunder Valley and Canada corner). When the bike hit the hay bales, we they literally had to stop bikes on the track, as one could not see where the track ended and the...

Banking adds a whole new element to the equation. I've seen riders thrown off at high speeds (partial highside) , and the bike (sans rider) stood up perfectly vertical...right into the hay bales :-O

Body possition plays a role, but I don't think nearly as much as counter steering... grab your frame on the front straight sometime (warm up lap) and see how quickly you can change direction. The faster you can change direction, the better lines you can make. I'll agree to disagree on the...

What it seems many are missing, is the relationship between traction and suspension. We hang off for several reasons, #1 Keep more tire on the road #2 Keep the bike as close to vertical as possible, as our suspension is designed for vertical movement. At 90 degrees, our suspension does virtually...

Body position does almost nothing to steer the bike...especially at speed. Tests have been done with motorcycles that have an extra set of frame mounted bars. Using those bars, the bike will only make the slightest change in direction. Anything resembling quick steering at anything above a...

A bike, by design, "wants" to go straight. When cornering at the limit, you are constantly countersteering (push inside bar, pull outside), simply eliminating your countersteering will pick the bike back up. You are already sliding at maximum cornering, pushing the outside bar and/or pulling the...

As A championship winning motorcycle roadracer, and former motorcycle racing instructor, I will give you what I think is the answer. This is based on real world vs. theoretical, but there may be some (poor) theory as well. When cornering at the maximum, you will have some throttle already...

How long will an EV battery pack last? (my current ride is 15 years old, and going strong) What needs to be done to dispose of EV batteries? How much can be recycled? (Iron and aluminum can be easiliy recycled) While in many cities, the can make a bit more sense, in rural areas, they are very...

Generally, we just keep track of the hours on the servo motors, and grease the joints based on that. We change out wiring harnesses every 18 months as we know they won't last more than 2 years in our application. (Larger robots, with a fair amount of movement). You can see the hours on the...

The amount of flow is so small, that I think only a near total failure would show up on most flow sensors. Generally, it is flowing about 2oz per hour. (.03oz/min)

Often on high end front wheels with rim brakes, the spoke lacing is much less than that of a disk brake equipped front wheel.