Every now and then I come across exceptionally well put together threads that have great potential to teach us things some of us probably wouldn't even think about. They are even more impressive when they are well organized, articulated and presented cogently, and contain quality photos. Lately I've been seeing some high-quality threads from @Stubbers and I'd like to post some of those threads here. They are exceptional to me, although I am unqualified to validate his work because I have no context for some of it. Anyhow here are a few outstanding AGN Hall of Fame worthy threads by him
Comparing a few Poppet Valves
Before I begin...Many thanks goes to Dave/ @sb327 for his contributions in getting me to where I am today with my current valve arrangement, we worked together closely to dial in versatile pilot valve that works very similarly to the one found in the L2. Also thanks to @csdilligaf for turning...www.airgunnation.com
Airgun Ports and Efficiency
What is airgun efficiency? It's calculated based on shot count obtained within a specified pressure range at the average energy over said pressure range. How can we manipulate efficiency? Efficiency is directly tied to many things, from barrel length, to plenum volume, however the most crucial...
Mass flow rate
Mass flow rate is the amount of a gas that passes through an orifice per unit of time. The three primary parameters that effect the mass flow rate through an orifice are velocity, density, and orifice area. Other factors include gas temperature, orifice entry and orifice exit conditions, both of...
Thanks for the mention, lots more where that came from! Look forward to spreading more tidbits of airgun (primarily pcp) knowledge when I have both the time and desire to. I don't go out seeking recognition/attention (why I am reluctant to post sometimes), however I do thoroughly enjoy sharing my perspective and understanding of the underlying nature of pcp's. It's been a journey. We all learn and understand differently, and I try to express myself through a few different means to get a point across so multiple readers can grasp the concepts better. I wouldn't call myself a teacher, rather a passionate student that only wants whats best for both the community and industry, in hopes we continue paving new roads that provide us more access.
My next discussion will likely cover some hammer travel mechanics, and just how critical the travel distance impacts lock time, hammer energy, and the required force necessary to cock the gun.
-Matt
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