And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Sunday, March 23, 2025
This looks real, but I'm not sure. Anybody know anything about this?
Four row, 28-cylinder Pratt & Whitney R-4360, 4,362.5 cu in (71.5 L), the largest-displacement aviation piston engine to be mass-produced in the United States. 3500 hp. Later models with twin turbos (in addition to the supercharger) made 4300 hp.
It's incomplete, believe it or not. The red plugs are in the exhaust ports where the exhaust stacks would attach. There should also be baffles between the cylinders that direct the airflow through the fins. Al_in_Ottawa
twin plugs per cylinder too....so, 56 plugs to change. I started one from the flight engineers position once in A&P school. At the console they had a Sun machine where you could do a check of each and every plug on each and every engine. Pretty cool idea.
we only had a single row in a stand. still impressive. we also had a navy trainer in the hanger. then someone stuck his head in the cockpit and noticed the ejection seat was still installed. Hello San Diego County Bomb Squad.
Do NOT doubt the ejection seat story. 1992 on Fort Bragg we found an old 155 towed piece used for ceremonial events in storage with a live "powder" round in the breech. No record the last time the thing had been thru the doors and used. Tires dry rotted, rusty all hell and bird shite covering the thing. Folks forgot to remove the unfired Boom Can last time the critter was used for its salute function. AND...the charging handle was "cocked". Would have been a loud bang and blown out wall ifn' that lanyard had been attached. SOMEBODY would have pulled the damn thing.
I think the one I saw at the Air Museum in Pensacola was a 35 cyl. More interesting with this display was it was a training model that was a cutaway. Insane amount of gearing! Bubbarust
https://industrialscenery.blogspot.com/2016/10/radial-airplane-engines.html?m=1
ReplyDeleteThis is one of the 6 engines that was used on B-36 bombers.
ReplyDeletefour row radial. 28 cylinders. 56 spark plugs. Also used on the A1 Skyraider in VietNam.
DeletePlatinum plugs - they were stealing them from the boneyards back in the 70's and 80's. One engine's worth was reportedly big $$.
DeleteSkyraider used Wright 3350.
DeleteFour row, 28-cylinder Pratt & Whitney R-4360, 4,362.5 cu in (71.5 L), the largest-displacement aviation piston engine to be mass-produced in the United States. 3500 hp. Later models with twin turbos (in addition to the supercharger) made 4300 hp.
ReplyDeleteneeds a plug change. I'd go with autolite. That frozen one in the back will be a bitch. Try not to strip out the threads.
ReplyDeleteThe high octane fuels used saw plugs changed frequently - like after each long flight. I suspect they never had time to seize.
DeleteI was guessing a flux capacitor
ReplyDeleteThe power source of Rosie O’Donnell’s vibrator.
ReplyDeleteI really needed to picture that so thanks a bunch….
DeleteR-4360 “corncob”. Very high maintenance.
ReplyDeletejob security
DeleteEach bank of cylinders is 'twisted ' to allow cooling air to reach the fins on the jug.
ReplyDeleteAircraft engine mechanics must have wept for joy when turbofan engines were adopted.
ReplyDeleteYes, yes we did. I’ve worked on the little brother to these, the R-2800. If it’s not leaking, it’s empty.
Delete....so kinda like a Harley?
DeleteOr an F-14, no hydraulic fluid in the drip pan(s)... She's empty.
DeleteIt's incomplete, believe it or not. The red plugs are in the exhaust ports where the exhaust stacks would attach. There should also be baffles between the cylinders that direct the airflow through the fins.
ReplyDeleteAl_in_Ottawa
It's the original turbo-encabulator.
ReplyDeleteNo fault codes. You had to actually troubleshoot.
ReplyDeletetwin plugs per cylinder too....so, 56 plugs to change. I started one from the flight engineers position once in A&P school. At the console they had a Sun machine where you could do a check of each and every plug on each and every engine. Pretty cool idea.
ReplyDeletewe only had a single row in a stand. still impressive. we also had a navy trainer in the hanger. then someone stuck his head in the cockpit and noticed the ejection seat was still installed. Hello San Diego County Bomb Squad.
DeleteDo NOT doubt the ejection seat story.
Delete1992 on Fort Bragg we found an old 155 towed piece used for ceremonial events in storage with a live "powder" round in the breech.
No record the last time the thing had been thru the doors and used.
Tires dry rotted, rusty all hell and bird shite covering the thing.
Folks forgot to remove the unfired Boom Can last time the critter was used for its salute function.
AND...the charging handle was "cocked".
Would have been a loud bang and blown out wall ifn' that lanyard had been attached.
SOMEBODY would have pulled the damn thing.
looks like a BMW engine...LOL
ReplyDeleteI think the one I saw at the Air Museum in Pensacola was a 35 cyl. More interesting with this display was it was a training model that was a cutaway. Insane amount of gearing!
ReplyDeleteBubbarust
Lots of moving parts... The sound though..
ReplyDeleteHere's a video of it running https://www.youtube.com/watch?v=XhzB7NMoj9A
ReplyDelete