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Arkivens dag - Besök Smalspårsarkivet - YCo4p (Arkiv/forskning/litteratur)

av Arne Hällqvist, Thursday, November 19, 2020, 17:10 (1651 dagar sedan) @ Ola Almquist

Bland de problem som uppstod med YCo4p/t i början gällde frekventa axelbrott. SJ kom fram till att belastningen på boggierna måste minskas. Bl a var snöplogarna infästade i boggierna och de borde istället monteras på vagnskorgarna. Strålkastarna måste då flyttas upp. Under hösten 1953 blev en vagn ombyggd på prov och ytterligare några följde under 1954. De flesta ombyggdes dock under 1955-1957 i samband med en ombyggnad av fordonstypen.

Hela tråden:

 

Time: 255
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE pid = 0 AND (mlf2_akismet_rating.spam = 0 AND mlf2_b8_rating.spam = 0) AND category IN (0, 4, 5, 6, 7, 8, 9, 25, 14, 23, 19, 22, 24, 10, 21, 11, 12, 13, 15, 16, 26, 18, 20, 27)

Time: 1133
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE (mlf2_akismet_rating.spam = 1 OR mlf2_b8_rating.spam = 1)
Time: 1329
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE category IN (0, 4, 5, 6, 7, 8, 9, 25, 14, 23, 19, 22, 24, 10, 21, 11, 12, 13, 15, 16, 26, 18, 20, 27) AND (mlf2_akismet_rating.spam = 0 AND mlf2_b8_rating.spam = 0)

Total time: 2759

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