2007年10月3日 · JP-4 was the primary fuel of the USAF for decades; however, it has been phased out in favor of JP-8 (see below). When specified, it can contain a full additive package including a corrosion inhibitor, anti-icing, and anti-static compounds. An optional additive is a metal deactivator. JP-8 was developed to be less volatile and explosive than JP-4.

2007年2月7日 · Part of the highly refined part is the removal of all wax compounds that could solify (freeze) at high altitude and stop the turbines. This lack of wax is very hard on diesel injection components. They use jet fuel (JP-5) in small boat engines in the Navy as these boats are outside on deck and have to start, even in February in the North Atlantic.

2018年5月4日 · AND Jet-A fuel-vapors in a confined tank are 'relatively hard to light-off' [unlike JP-4]... by conventional bullets. Thankfully, tracer/incendiary bullets are rarely ever available/used for 'pot-shots'. I do admit that AAA, SAM's and AAM's are pretty effective at destroying civil Acft.

2024年11月7日 · Turtle Shelling of Vessel Head 4. LOCBE; Oct 11, 2024; Boiler and Pressure Vessel engineering; Replies 8 ...

2019年7月4日 · jp Thanks for the responses. JStephen , you are correct that the contractual requirements would have to be followed , however I don't think it is stated for this equipment, only that they should be designed in accordance with ASME VIII Div 1, therefore I feel we could argue the point that just because they are designed to ASME VIII, it doesn't ...

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2010年2月2日 · Not a kosher callout. First of all, it seems to be one that goes back a few decades (because the datum reference is listed before the tolerance value), but the problem is mainly in the mixing of TIR with the concept of concentricity.

2021年12月9日 · For SA-105 flanges, in ASME Sec Viii Div 1, there is no explicit requirement for NDE other than thee need to conduct Visual Examination, this requirement comes from UG 93 (d). Flange face finish shall be assessed as per ASME/ANSI B46.1 (This is …

2019年2月21日 · The 4 holes are grouped together under a common callout, which actually gives two position requirements for the holes: the upper tolerance of .030 controls their location on the part (I think that's the answer to your question). We …

2005年7月28日 · Hello All, Some paper that I have readed do not make difference between D.A.R and P.I, we know DAR is the ratio between IR measurements taken after 60 and 30 seconds or R 60/R30 and PI is ratio between IR measurements taken after ten minutes and one minute IR = R10/R1 but result...