Recent content by PWR4360-59B

A technicality, the actual crankcase sections were not made from Magnesium, the sections bolted to it are, and the purpose of them is for induction, accessories, and propeller gear reduction, and yes those casings are magnesium. The power section is the crankcase. The other cases can not be...

Specimen melting? I mentioned that in my above post. Still proves it burns and doesn't just need to be small chips or dust. Just the wrong material to make aircraft engine parts from.

Solid magnesium will burn, I've done it, but yeah it maybe melts a bit to start. There are plenty of stories of aircraft engines burning, that the Co2 systems would not put out because of burning magnesium. And very likely these Mag fires are what gave the old Piston airliners such a bad...

Pratt & Whitney, and Wright, never used magnesium for Large radial production engine crankcases. PW used forged Aluminum, and the 3350's were forged steel. Nose or gear reduction cases and accessory cases were made from Magnesium, and a very bad engineering choice for an aircraft engine. There...

I don't know about now, but back in the 70's a private pilot got instrument training, no not flying an IFR flight plan but some time flying and controlling the plane on instruments, night flight in a very dark area is similar to IMC conditions. Some of us low timers had no problems depending on...

Depends on what is knocking! ;) If you have an old car or truck with a manual transmission, find a nice steep hill that you should use say 2nd gear to climb, put the transmission in high gear and floor it. Load is high rpms are low. But like the above post mentioned its not always an RPM...

Good post. And some of what I was going to say as well. First off, like mentioned above it took the automotive world many years to figure out what the aircraft engine designers did in WW2 days, no excuse for that since many automobile company's built aircraft engines in the big one. Secondly...

At first I thought he had no master rod as well, an illusion of sort.

Isn't it funny all these incorrect youtube examples of radial engine operation?

7 Banks, not 7 Rows. That is really good weight for that size engine, I suppose they preferred to support P&W rather than go with that design.

So you are saying with the master rod included there are 7 rods per throw? I knew for sure that it was not from a 3350, wrong style of rods. I was guessing it was an R-1830 but its just a guess, I'd have to study a bit more. Parts of a Japanese engine could look very similar to American ones I'm...

Seems to have been a rash of them crashing, one just a few days ago. Kind of proving turbines just aren't all that? Anyone know the cause of the crashes? The one in the antarctic, was a semi pilot error deal sinking into deep snow, just wondering about the rest of them.

A quick study of nexrad units, upgrades that started in 2010 to the 159 units of WSR-88D completed in 2013. 700KW at the klystron output and a 53 db gain center fed parabolic antenna. Just curious of what the heating capability would be say at 5 miles from the antenna using CW? Then if say...

Its been awhile posting here. Yes and antenna gain has a bunch to do with effective radiated power, sure would like to know if the Nexrad weather radars can operate non pulsed continuous wave at high power?

I got a kick out of some of the comments. Yes the guy does a nice restoration but that is all it is, doesn't look like the engines are airworthy, looks like most all the parts have been bead or sand blasted. The pistons look like they are greased up with something? And note the untrained or...