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Topic: PRR Q2

	Duplex Steam Locomotive / Steam discussion - Trains.com Forums
		The 4-4-4-4s were all PRR T1s except one; the Baltimore and Ohio had one class N-1 4-4-4-4 whose rear cylinders were located beneath the firebox and drove the rear two pairs of driving wheels.
		The Q2 (and the T1 as well) were higher speed locomotives and if they couldn't operate at that speed range, they tended to use more coal and water per unit of out put than conventional, similar sized locomotives.
		PRR changed direction and committed to diesels about the time the final T1 was placed in service.
	www.trains.com /TRC/CS/forums/713357/ShowPost.aspx (2600 words)

	O PRR Q2 History
		After decades of conservative locomotive practice, the new Q-2's embodied many radical practices to the Pennsylvania, such as Timken roller bearings on all axles, floating bushings on all valve gear pins, Worthington SA feedwater heaters, combustion chambers and Franklin Type E boosters on the trailing engine truck.
		While very economical on coal, the big 4-4-6-4's were the opposite with water and after as little as one and half hours of hard use, were in need of replenishment.
		With delivery of new diesel freight locomotives, the PRR decided to set aside their most modern and complex locomotives and by the end of summer of 1949, all were in storage, most of them at Crestline, Ohio.
	www.keyimportsinc.com /o_prr_q2_history.htm (659 words)

	Duplex locomotive - Wikipedia, the free encyclopedia
		The PRR's requirements were the use of the Belpaire firebox and the Franklin oscillating-cam poppet valve gear.
		What is undeniable is that the PRR very soon did not care; the much easier solution of the diesel locomotive was taken within months of the production locomotives being delivered, and within 2 years all principal passenger trains were diesel-hauled.
		The PRR also desired to apply the duplex principle to freight haulage, and the Q1 was the first experiment in that direction.
	en.wikipedia.org /wiki/Duplex_locomotive (1576 words)

	Crestline PRR Engine Facility Duplex and Experimentals
		The first experimental duplex on the PRR was the S1, a huge rigid frame duplex locomotive of the 6-4-4-6 wheel arrangement.
		This locomotive was built by the PRR at Altoona in 1939; it was hailed as the largest locomotive ever built.
		The next duplex on the PRR was also their last fling with the rigid frame duplexes, the Q2.
	crestlineprr.com /duplexexperimentals.html (2628 words)

	STEAM LOCOMOTIVES
		The latter were never duplicated (PRR passenger locomotive needs were met until after WWII by electric locomotives operating on the Harrisburg-Washington-New York electrified lines).
		But the engine this man is working on has Baker valve gear, which the PRR never used except on the wartime J1 2-10-4's.
		The first big tenders on the PRR carried 21,000 gallons of water, and were bought with the M1a engines in 1930.
	www.geocities.com /SoHo/Museum/8427/loco1.html (982 words)

	RR Museum of PA - Rolling Stock Collection
		In contrast to the contemporary PRR locomotives and cars were several examples of historic equipment, including a wooden Cumberland Valley Railroad Combination Coach originally built in 1855, six late 19th Century wooden passenger cars, and a class H3 freight steam locomotive built in 1887.
		Penn Central had other plans for the bulk of the artifacts and by September of 1969 it appeared that a significant part of the PRR collection was earmarked for inclusion into the collection of the National Museum of Transportation in St. Louis, Missouri.
		The PRR collection was moved piecemeal with the first locomotives arriving in October of 1969 and the other pieces arriving in various stages through 1975 when the first section of the museum exhibit hall was completed.
	www.rrmuseumpa.org /about/roster/collect.htm (951 words)

	Steam in the Juniata Valley
		The cars consisted of a complete PRR Express Train with 3 B60b Baggage Cars and a P70 Coach (all riding) and various freight cars (all riding) with a beautiful PRR N5c Cabin w/ antenna.
		Don Godshalls PRR Doodlebug in the background with Les Shaffer's PRR I1sa in the middle and Jack Miller's PRR M1b in the foreground.
		Don Sweger on the lead engine which is a PRR K4sa and Brain Hilgert on the PRR G5s heading the express train.
	www.discoverlivesteam.com /magazine/35.html (810 words)

	diyAudio Forums Archive - Spreading the heat in class A
		In order not to reverse bias Q2 it will be required to insert a diode in the base of Q2, otherwise emitter-base zenering will occur.
		Q1 and Q2 are not mentioned in the patent, but are the equivalents in my diagram.
		The way Q2 is kicking in and out is going to need a very fast Q2, or it will stay cut-off for many microseconds while Q1 is needing more voltage and current.
	www.diyaudio.com /forums/showthread/t-21556.html (6145 words)

	S. Berliner, III's Pennsylvania Railroad Continuation Page 1
		In the period just before WWI and through WWII, PRR steam locomotives and tenders carried marker and classification lights that were unique; large metal globes (spheres) with four lens positions at each quadrant, a tab to rotate them and lock them in position at 90° increments, and a heavy clawfoot base for mounting.
		According to a 1910 PRR Book of Rules I have, at that time locos had a set of marker lights on the pilot beam; these displayed red to the front and green to the sides and rear.
		PRR's style was more of a block form, based on comparisons with several photos of steam diesel and electric locomotives from 1920 through the 1950's.
	home.att.net /~Berliner-Ultrasonics/prr1.html (2807 words)

	Locomotive Prr Q2 Steam (Site not responding. Last check: 2007-10-14)
		If you are looking for a quality classic Locomotive Prr Q2 Steam for your new young train engineer, then you have reached a powerfully exciting place to find it.
		Many of our new Locomotive Prr Q2 Steam items are the best on the market and some are hard to find.
		Finding that special Locomotive Prr Q2 Steam item will be easy, electrifying, and will instantly empower you with the sure fire satisfaction of knowing you got the greatest deal on the net.
	www.decipher-trains.com /HT/Locomotives/Locomotive-Prr-Q2-Steam.htm (557 words)

	Pennsylvania Railroad (Site not responding. Last check: 2007-10-14)
		One hundred and thirty-five steam engines were retained for possible emergency use, but they were never steamed up.” Fischer states that the historical data about the pictured locomotives were taken from Pennsylvania Railroad All-Time Steam Locomotive Roster published in 1994 by William D. Edson (see also Edson, 1974).
		The photographs are arranged by PRR branch or division.
		Numerous full-color illustrations taken from PRR advertisements, timetables, and other promotional materials are interspersed among the photographs.
	lib.sdstate.edu /PRR/Bk_FischerIan2.html (324 words)

	Train Reviews
		In size, it's just slightly shorter than the PRR Q2, due in part to the massive Q2 tender vs. the R-2 (photos on the linked page) oil tender.
		I hooked them up to the PRR wreck train (which, with a gon with a heavy molded junk load, a heavyweight passenger car, and a very heavy crane is quite a load), and they haul it as though it wasn't there.
		This Premier model of the NYCandHRRR #999 4-4-0 American is the third Premier model of a late-19th/early-20th century steam locomotive, the first being the PRR class H3 2-8-0 Consolidation and the second being the PRR class D16d 4-4-0 American.
	www.toytrains1.com /train_reviews.htm (19938 words)

	S. Berliner, III's Pennsylvania Railroad Page
		The official PRR paint color codes, with Du Pont automotive finish line numbers, which can be mixed by any auto paint jobber, have been moved to PRR page 2.
		I was at Steam Fair on Labor Day 2003 (01 Sep) and #643 is stripped down (photos are on PRR page 0); they are operating with a tiny Whitcomb diesel sporting #643's whistle (or one like it).
		There are endless other sites for you to surf; one that really got me, however, is Rob Schoenberg's, on which he has a PRR station sign maker, which allows you to assemble a Pennsy-style station sign in color, letter by letter.
	home.att.net /~berliner-ultrasonics/prr.html (2247 words)

	[No title]
		HO SCALE PRR Q2 4-4-6-4 (Precision Scale Models)
		HO SCALE PRR MOW N5 Cabin (LMB Models)
		PRR N5B, N6B, N8 and N5c Cabin Cars (1:29th Scale)
	www.angelfire.com /film/prrpics/indexpics2.html (405 words)

	Ntrak Hans Sodenkamp PRR PH & LF (Site not responding. Last check: 2007-10-14)
		The PRR mainline lays on the west bank of this river and connects Harrisburg with Altoona.
		Dus voor een N-schaal bouwer is daarom van bijna elke diesel wel een PRR variant.
		So, for a N-scale modeler there is nearly always a PRR version of it.
	www.phlfrra.com /serv02.htm (1342 words)

	[No title]
		Remember that 1913 and 1923 PRR Lines West built far fewer of the N6B with its slope-sided "Panhandle" cupola than the N6A with its large "Lines West" cupola as the N6B was designed to fit the close clearances in the 10 tunnels on the Panhandle Division Pittsbburgh-Columbus mainline between Pittsburgh and Newark, Ohio.
		According to PRR specifications for class NB cabin cars, dated April 1890, scarlet lead chromate was applied to the outside of the car body, while the roof and truck (wooden parts of the underbody, probably including the platforms) were metallic brown.
		Subject: Re: [PRR] PRR license plate: A report Rich, The "sample" to which I referred was to have been a legally available promotional version of the actual registration plate, hence the number "0000," as per the quote I attached from Dan Cupper in my previous post.
	www.webcircle.com /users/cobrandt/9902.txt (15502 words)

	YouTube - MTH Premier PRR Q2 (4-4-6-4) Steam Locomotive
		MTH Premier PRR J1 Texas (2-10-4) Steam Locomotive
		MTH Premier PRR E6 Atlantic (4-4-2) Steam Locomotive
		MTH Premier PRR M1b Mountain (4-8-2) Steam Locomotive
	youtube.com /?v=y8aFOnU3Tv8 (239 words)

	Reference Works Used (Site not responding. Last check: 2007-10-14)
		Jerry Britton's immense site has helped a lot, so it's hard to list everything, but one of the most impressive parts is "24 Hours at Harrisburg", which has enabled me to get the consists of trains right (or at least strive for it).
		Rob Schoenberg's large collection of PRR diagrams has proven invaluable, as has his PRR Freight Roster.
		Clint Chamberlin has put together a very useful collection of PRR photographs, especially of steam and electric locomotives, which I've referred to often.
	www.byz.org /~morven/Railway32/references.html (306 words)

	PRR locomotive classification (Site not responding. Last check: 2007-10-14)
		In 1942, the PRR built 250 2-10-4 "Texas" type locomotives to CandO plans; class J now being unoccupied, it was reused for them.
		K4s - 425 built by the PRR and Baldwin 1914-1928.
		L5 - PRR 2nd generation DC electric locomotive.
	www.info-pedia.net /about/prr_locomotive_classification (828 words)

	Prodigy Professional :: View topic - Questions re: Design of Neve BA283
		Now that I have passed my first real transistor design class (with a grade of A, btw; thanks especially to PRR and those who helped on my labs), I have been looking at the class A Neve BA283 cards and have been trying to figure them out.
		That might not be the optimal sound you are after, but for a given load you may at least have symmetrical clipping, if that's what you want (although as PRR said in another thread, "Who clips?").
		Note also (after pondering and grasping PRR's exegesis), as far as how well the whole thing works, that the temperature coefficient of the whole thing is a factor too.
	www.prodigy-pro.com /forum/viewtopic.php?t=6425 (3029 words)

	Railfan.net Forums - Favorite Pennsy Steam Locomotives?
		First, let me admit that # 759 is one of my favorites, and is alive and well, and ready to run, in HO gauge, in my stable.
		Next; my favorite PRR steamers would be those that are also in my HO stable, and are equally alive and well and ready to run.
		Just for the fun of it, I once hooked up all three PRR steamers to see how many cars they could pull.
	forums.railfan.net /forums.cgi?board=PRR&action=display&num=1108823314 (973 words)

	PENNSYLVANIA RAILROAD HOMEPAGE-PHOTOS (Site not responding. Last check: 2007-10-14)
		PRR A3a #5076 0-4-0 MEADOWS, N.J. PRR B6s #7566 0-6-0 YOUNGSTOWN, OHIO 5-21-38
		PRR M1b #6792 4-8-2 MINGO JCT., OHIO ?-?-55
		PRR Steam has served 53,698 pages since 2/5/01.
	prrsteam.pennsyrr.com (394 words)

	[No title]
		Subject: [PRR] PRR files Date: Fri, 05 Jan 2001 19:45:46 -0500 Group, Just started my Bowser E6 Atlantic kit and my files are starting to get gummed up from the casting, I have done a few kits now and the files keep getting worse is there any way to clean them.
		The main difference between this design and the PRR War Emergency cars (Class H31b, rebuilt with steel sides after the War to Class H31c) is that the AAR design cars had hat section braces with sides 11 boards high, while the PRR cars had Z-section braces with sides 8 boards high.
		The PRR got on board early as well, but again, usually only in places where the fast response of the electro-pneumatic machines were needed.
	www.webcircle.com /users/cobrandt/200101.txt (17005 words)

	Informat.io on Prr Q2
		The Pennsylvania Railroad's class Q2 comprised one prototype and twenty-five production duplex steam locomotives of 4-4-6-4 wheel arrangement.
		They were the largest non-articulated locomotives ever built and the most powerful locomotives ever static tested, producing 7,987 hp on the PRR's static test plant.
		They were by far the most successful duplex type.
	www.informat.io /?title=prr-q2 (146 words)

	Multimedia Page
		They are yet another die-cast model of PRR electrics and, as with the previous ones, are excellent representations of the prototype.
		This is a reissue of the original PS1 model released a number of years ago (that had a slotted pilot, the new one is a model of the locomotive in the 1940's with a solid pilot) and includes many improvements and enhancements.
		Though I'm not usually a fan of diesels, one of the roadnames it was released in was PRR, and being a sucker for anything PRR I bought it.
	www.toytrains1.com /multimedia.htm (6412 words)

	PRR 4-4-6-4 Q2 (Site not responding. Last check: 2007-10-14)
		In 1944 the Pennsylvania Railroad modified the design of the single Q1 steamer to create the 4-4-6-4 Q2 steam engine, the most success Duplex the PRR ever ran.
		Developed for fast freight service, the Q2 proved the largest and most powerful 10-drivered engine ever built.
		The Q2 engines had front and rear cylinders of different sizes, so they could power different number of drivers, and drivers significantly smaller than the Q1 (69" instead of 77").
	www.trainbarn.com /mth_20-3048.htm (246 words)

	[No title]
		= Round: 10.1, Operating Round #18, 1 of 3.Initial move order is: B&O, NYC, B&M, PRR, NYNH, C&O, Erie, CPR B&O(Iain) runs routes for total $280 revenue H18-I17-I15-H16-H18-G19 B&O dividends a total of $280 for $28 per share Iain 6 $168 Joerge 2 $56 Dave 2 $56.B&O stock moved Right 1 space(s) (+$25).
		from N2($200) to O2 ($220) PRR(JMO) runs routes for total $520 revenue G19-H18-H16-H18-I19-I15;I15-H10-H4-F4-F2 PRR dividends a total of $520 for $52 per share JMO 4 $208 Iain 1 $52 Joerge 2 $104 John 1 $52 Dave 2 $104.PRR stock moved Right 1 space(s) (+$20).
		from P2($240) to Q2 ($260) PRR(JMO) runs routes for total $ 520 revenue G19-H18-H16-H18-I19-I15;I15-H10-H4-F4-F2 PRR dividends a total of $520 for $52 per share JMO 4 $208 Iain 1 $52 Joerge 2 $104 John 1 $52 Dave 2 $104.PRR stock moved Right 1 space(s) (+$20).
	home.comcast.net /~dmitton/intdern.txt (957 words)

	Too Super, Man? \| Columns \| SCI FI Weekly
		A typical diesel locomotive today generates around 3 to 5 megawatts of power, and in 1938, when Superman had his comic-book debut, the most common train pullers were still steam engines rated at 300 to 2,000 horsepower, or 0.2-1.5 megawatts.
		The most powerful engine at that time was the 8,000-horsepower (5.9-megawatt) PRR Class Q2 (actually introduced in 1944, but what the heck).
		Based on this, we can estimate that Superman generates over 6 megawatts, or 30,000 times the maximum sustained output of a fit human bicyclist.
	www.scifi.com /sfw/column/sfw13097.html (1431 words)

	Fake Builders Plates: RCAI Website (Site not responding. Last check: 2007-10-14)
		A number of aluminum reproductions of Pennsylvania Railroad builders plates have been done.
		Other PRR locomotives represented in this series of reproductions are the following classes: A3, A5s, B6sb, C1, D16a, D16sb, E6s, F1a, G5s, C1s, H9s, l1s, J1, K2, K4s, K5, L1 s, M1, Q2, S1 and T1.
		Made from either fiber glass, aluminum or bronze, these plates were advertised as exact duplicates.
	www.railroadcollectors.org /pgFakes_BP.shtml (437 words)

	Auction Display List
		Alco OX-124 PRR 46-A Caboose, Undec., OB___ $ 100
		PRR 1962 & 1965, Pullman 1966___ $ 10
		PRR Color Guide to Freight and Passenger Equipment Vols.
	www.maurerail.com /asp/auctionlist.asp?iano=350 (3680 words)

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