home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky rec.models.railroad:2348 rec.railroad:9031
- Path: sparky!uunet!tymix!niagara!romeo
- From: romeo@niagara.Tymnet.COM (Michael Stimac)
- Newsgroups: rec.models.railroad,rec.railroad
- Subject: Re: Pantograph pickup width Swiss 460
- Message-ID: <2839@tymix.Tymnet.COM>
- Date: 18 Nov 92 19:34:26 GMT
- References: <urf.722020840@sw2001> <1992Nov18.053023.25928@news.uiowa.edu>
- Sender: usenet@tymix.Tymnet.COM
- Followup-To: rec.models.railroad
- Organization: BT North America (Tymnet)
- Lines: 32
- Nntp-Posting-Host: niagara
-
- In article <1992Nov18.053023.25928@news.uiowa.edu> jones@pyrite.cs.uiowa.edu (Douglas W. Jones,201H MLH,3193350740,3193382879) writes:
- >
- >I've always been impressed with Swiss catenary, because they
- >seem to make more consistant use of curved catenary than any
- >other place I've been. That is, when rounding a curve, the
- >catenary wire (or top wire, or support wire) is off to one
- >side, so that it pulls the running wire to the side at every
- >support point. This keeps the running wire within a few
- >
- >By comparison, most catenary I've seen in the US, or France and
- >Italy, for that matter, has been strung with the support wire
- >directly above the running wire, so that both hang straignt
- >from one lineside support pole to the next. This leads to
-
-
- Hunh? This doesn't jibe with my memory of beautifully hung
- curved catenary on the Pennsylvania RR. I pulled a book off
- my shelf at random and found an example within 10 seconds -
- Check page 293 of _Pennsy Power_ by Staufer. The top photo
- illustrates compound catenary at Wynnewood, Pa.
-
- Many trackside photos of ex-Pennsy territory show off the
- beautiful flow of curved catenary. At least some of the
- engineers who designed the PRR catenary were Switzers,
- perhaps that explains the similarity.
-
- Michael Stimac
- --
- Michael Stimac
- (415) 355-8889
- romeo@tymnet.com
- These opinions are not necessarily anyone's but my own.
-