What a coincidence...This week, I brought "Hatchers Notebook" as reading material for my long flights. Rereading this book never gets old. New things stick in my brain each time.
John, good write-up. I have a question. Many years ago, someone (can’t remember who) was selling a “strain gauge” for measuring chamber pressures. What ever happened to this product. Not reliable, too expensive, etc.? Thanks! memtb
Ken Oehler offered his M43 PBL, which to my knowledge was one of the earliest consumer oriented pressure testing units. Around the same time Steve Faber also produced one. Both are strain based and preceded RSI's Pressure Trace.
