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ree Member
Joined: 29 Jun 2004 Posts: 4399 | TRs | Pics
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ree
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Tue Nov 04, 2014 6:58 pm
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In winter of 1942, a DC- 3 with actress Carole Lombard on board, crashed into a cliff on Potosi Mountain, southwest of Las Vegas. The crash killed all 19 on board. Wikipedia has a long article about details of the accident, largely the fault of the pilot heading on a wrong compass bearing.
Potosi Mountain isn't a particularly special mountain otherwise. It's at the south end of the Spring Mountains, which border Las Vegas to the west. Potosi is a huge mountain with several knuckle-like peaks, most which have radio towers, transmitters, and other FAA equipment. It's pretty high - its tallest summit is 8,500', with great views of Las Vegas and the surrounding desert.
I heard about the crash site, which still had some debris around, from Jim Boone's fantastic website about local LV desert hikes, Bird and Hike.
Steve and I tried last Christmas to find this crash site. Unfortunately, the ground was covered in 6 - 12" of snow, obscuring the ground and complicating travel. This time, we were determined to start early and find it.
The drive to the trailhead is about an hour and a half from metropolitan Las Vegas. We went south on interstate 15 till Jean/Goodsprings exit, then turned north west. We turned onto the Goodsprings Bypass Rd, which started paved, then degraded to a gravel road. The road was much rougher since we'd been there last and we had to take it easy with Dad's Camry... or else!! Yikes.
We parked at the gate, and continued up an incredibly steep service road. We must have gained 2,300' in the first 1.25 miles. It started on the east side of Potosi, then wrapped around to the west, before gaining a ridge lined with peaks. A small cairn marked where we jumped off this road, and scrambled down and up to a gentle ridge.
Below this ridge, was a cliff where Steve's gps indicated the site lay. A small piece of sheet metal confirmed we were close. When we found a rope strung from a dead tree, heading down the cliff, we knew we had the right gully to descend. Not wanting to trust the rope, we found another gully that was steep and slippery, but carefully made our way down below the cliffs.
Desert Denizen service road we hiked up view of Pahrump Valley gravel road on top of the ridge small cairn and radio towers traversing Las Vegas and limb nice snags on the ridge small piece of metal
From there, scattered down a steep, loose rock gully, we found all sorts of debris. The biggest parts were two landing gear, and two engines. Steve and I were pretty excited to find all the stuff, most of which was barely recognizable. Small pieces were scattered about, and probably much of it is now buried by time and erosion. We didn't see much in the way of a wing box or any large pieces of fuselage, but we didn't go too far down the gully - just until the debris field thinned out.
I'm sure the site has been picked over, over the years. At one time, someone put a memorial plaque up there, but that supposedly got carted away. It wasn't an easy site to access, due to the steep loose terrain.
hubcap artifact airplane part airplane part cable control airplane part wire loose gully metal and landing gear Steve inspects the landing gear hose landing gear landing gear heated metal close up gear gear engine melted aluminum melted aluminum seat spring canister twisted metal getting a shot to prove to Dad there were parts up there! engine wire coil airplane part another seat spring cliff above crash site rope going up cliff
After shooting some pictures, we headed back up. Steve was brave enough to try the rope exit, while I just headed back up the gully I came down. We took a short scramble to the peak above the cliffs, for a stupendous view of the desert.
We got back to the car about 5 pm, just in time to join others in the Friday night, Las Vegas commute.
4 labels Steve with Telescope Peak in the distance Red Rock Canyon Radio towers Las Vegas steep road Mt. Potosi turn off
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Chico Member
Joined: 30 Nov 2012 Posts: 2500 | TRs | Pics Location: Lacey |
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Chico
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Tue Nov 04, 2014 11:35 pm
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ree wrote: | Desert Denizen |
Hammacher Schlemmer has this realistic large robo spider you can buy to scare your co-workers with. Price seems reasonable. $40 I think. Of course the boss might not appreciate your scaring everyone.
ree wrote: | 4 labels Steve with Telescope Peak in the distance |
On the far side of the basin?
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Hulksmash Cleaning up.
Joined: 20 Apr 2008 Posts: 7113 | TRs | Pics Location: Arlington |
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Hulksmash
Cleaning up.
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Wed Nov 05, 2014 3:16 am
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ree wrote: | engine |
It's been a really really long time since i've done any work on one of those engines, so may memory is a bit foggy. One thing that grabs my attention is the amount of rust. I don't recall that much iron in those things. Another item that grabbed my attention is the 9cyl R1820s, rather than the 14cyl R 1830's. That bird must have been an early underpowered model.
"Bears couldn't care less about us....we smell bad and don't taste too good. Bugs on the other hand see us as vending machines." - WetDog
Albuterol! it's the 11th essential
"Bears couldn't care less about us....we smell bad and don't taste too good. Bugs on the other hand see us as vending machines." - WetDog
Albuterol! it's the 11th essential
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ree Member
Joined: 29 Jun 2004 Posts: 4399 | TRs | Pics
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ree
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Wed Nov 05, 2014 9:56 am
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Chico - I went back and labeled that photo, showing Telescope Pk and other features/landmarks.
That cracks me up about the toy, but not so funny if someone keels over and has a heart attack from fright! This is the second time I've seen a tarantula out in the desert there. They are pretty docile and cool, unless you're a cricket, of which we saw plenty.
There were lots of birds up there, and also we saw deer tracks.
Hulksmash, thanks for the observation. I'd be asking Steve "what's that?? What's that??" Some pieces he knew, others he didn't. I guess there is some archivist at Boeing that knows all this stuff.
Regarding rust... this location gets more snow and precip than Las Vegas, at 8,090'. Maybe this would effect rust more..?
The wikipedia article was super interesting: beacons dark due to war, Carole Lombard being asked to give up her seat, but she insisted... on that fateful flight. Her mother died in the crash too.
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ree Member
Joined: 29 Jun 2004 Posts: 4399 | TRs | Pics
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ree
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Wed Nov 05, 2014 10:05 am
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Can anybody guess what this is?
airplane part
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Hulksmash Cleaning up.
Joined: 20 Apr 2008 Posts: 7113 | TRs | Pics Location: Arlington |
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Hulksmash
Cleaning up.
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Wed Nov 05, 2014 12:24 pm
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I used to work for a company that overhauled radial piston engines.
Regarding the rust. Only metal alloys containing iron (steel is an alloy) turn reddish brown when corroding. I thought the engine cases, prop reduction gear box case, and supercharger case were made of forged aluminum, which when corroding does not turn reddish brown.
The part your asking about is most likely from the hydraulic system.
"Bears couldn't care less about us....we smell bad and don't taste too good. Bugs on the other hand see us as vending machines." - WetDog
Albuterol! it's the 11th essential
"Bears couldn't care less about us....we smell bad and don't taste too good. Bugs on the other hand see us as vending machines." - WetDog
Albuterol! it's the 11th essential
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puzzlr Mid Fork Rocks
Joined: 13 Feb 2007 Posts: 7220 | TRs | Pics Location: Stuck in the middle |
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puzzlr
Mid Fork Rocks
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Wed Nov 05, 2014 12:38 pm
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Thanks for the report, and especially for steering me to BirdAndHike.com - what a great site. I don't like being in the city of Las Vegas but the area has lots to offer and I'll definitely use this site next time I go through there.
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RodF Member
Joined: 01 Sep 2007 Posts: 2593 | TRs | Pics Location: Sequim WA |
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RodF
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Fri Nov 07, 2014 4:02 pm
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ree wrote: | gear gear |
Completely lacking the benefit of Hulks' hands-on experience with the insides of a radial engine, this mystified me. But the full Service manual for the R-1820 is available (42 MB pdf). Page 19 "R-1820-71... 0.666 (3:2) Reduction Gear Ratio: The reduction gear for the R-1820-71... consists essentially of a large internal driving gear splined and shrunk to the crankshaft;" (not pictured above) "a propeller shaft assembly incorporating six planetary type pinion gears mounted on arms with are integral with the propeller shaft flange, and a stationary reduction gear which is bolted to the crankcase front section." (all pictured above)
Should've been obvious!
The identity of the rest of the parts are pretty obvious.
Interesting; enjoyed this, thanks for sharing, Ree.
"of all the paths you take in life, make sure a few of them are dirt" - John Muir
"the wild is not the opposite of cultivated. It is the opposite of the captivated” - Vandana Shiva
"of all the paths you take in life, make sure a few of them are dirt" - John Muir
"the wild is not the opposite of cultivated. It is the opposite of the captivated” - Vandana Shiva
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Hulksmash Cleaning up.
Joined: 20 Apr 2008 Posts: 7113 | TRs | Pics Location: Arlington |
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Hulksmash
Cleaning up.
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Sat Nov 08, 2014 2:57 am
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Mystified eh.
Behold The R-4360 28 cylinder radial engine. I do believe this is the most complicated method to swing a prop ever devised.
http://www.enginehistory.org/P&W/R-4360/4360Cross.jpg
Oh ya. If ya want a headache figure out how the cam works to open and close the valves on a radial engine.
"Bears couldn't care less about us....we smell bad and don't taste too good. Bugs on the other hand see us as vending machines." - WetDog
Albuterol! it's the 11th essential
"Bears couldn't care less about us....we smell bad and don't taste too good. Bugs on the other hand see us as vending machines." - WetDog
Albuterol! it's the 11th essential
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AR 724
Joined: 22 Aug 2007 Posts: 1514 | TRs | Pics Location: Saratoga Passage |
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AR
724
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Mon Nov 10, 2014 5:32 pm
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So much history still there. Thanks for sharing!
It looks like you left everything alone for future hikers too.
...wait...are we just going to hang here or go hiking?
...wait...are we just going to hang here or go hiking?
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