Typisk eksempel på keiserens nye klær - dersom man ikke er ekstremt nøyeregnende?

M

greffern wrote: H0f (feldbahn) er 600mm smalspor i H0 med Z skala sporvidde. H0n2 er vel da to fots sporvidde og i virkeligheten bare noen få centimeters forskjell i forhold til 600mm..... Hmm............ Dette må være noe for selvbyggere!

En fot varierer vel endel med tid og sted. Jeg fleiper ikke nå, mener det
bokstavelig!

Eksempler klippet fra nett:
En svensk fot = 296,9 mm. Samma som den gamla romerska foten. Sedan
1600-talet allmän i hela Sverige.
1 amerikansk fot= 304,8 mm

Benytter man den svenske foten blir det altså en differanse på 6,2mm!
Med den amerikanske snakker vi hele 9,6mm! Selv for en nagleteller som
meg er dette en ignorerbar forskjell.

Til slutt en munfull for de virkelig interesserte:
--
The natural foot (pes naturalis in Latin), an ancient unit based on the
length of actual feet, is about 25cm (9.8 inches). This unit was replaced in
early civilisations of the Middle East by a longer foot, roughly 30cm or the
size of the modern unit, because this longer length was conveniently
expressed in terms of other natural units: 
1 foot = 3 hands = 4 palms = 12 inches (thumb widths) = 16 digits
(finger widths).
The unit was used in both Greece and Rome; the Greek foot is estimated
at 30.8cm (12.1 inches) and the Roman foot at 29.6cm (11.7 inches). In
northern Europe, however, there was a competing unit known in Latin as
the pes manualis or manual foot. This unit was equal to 2 shaftments,
and it was measured "by hand", grasping a rod with both hands, thumbs
extended and touching. The manual foot is estimated at 33.3cm (13.1
inches). 
In England, the Roman foot was replaced after the fall of Rome by the
natural foot and the Saxon shaftment (16.5cm). The modern foot (1/3
yard or about 30.5cm) did not appear until after the Norman conquest of
1066. It may be an innovation of Henry I, who reigned from 1100 to
1135. Later in the 1100s a foot of modern length, the "foot of St. Paul"s"
was inscribed on the base of a column of St. Paul"s Church in London, so
that everyone could see the length of this new foot. From 1300 at least,
to the present day there appears be little or no change in the length of
the foot. 
In the latter years of the nineteenth century, after both Britain and the US
signed the Treaty of the Metre, the foot was officially defined in terms of
the new metric standards. The UK officially redefined the foot as being
30.48cm by the Weights and Measures Act of 1963 which became the
"international foot". In the US the Metric Act of 1866 defined the foot to
equal exactly 1200/3937m, or approximately 30.48006096cm. This unit,
still used for geodetic surveying in the United States, is now called the
survey foot. In 1959, the US National Bureau of Standards redefined the
foot to equal exactly 30.48cm (about 0.999998 survey foot) to come into
line with the rest of the world
__
(Sitat fra
[URL=ukmetrication.com]http://www.ukmetrication.com/history2.htm[/
URL]

Hei!

HOn2 er en amerikansk/engelsk betegnelse som betyr at det er en modell i skala HO med en sporvidde på 2 fot (7mm i HO er riktig). HOf er en tysk betegnelse som betyr at det er en modell i skala HO som går på feldtbahn skinner. Dette er jo 600mm sporvidde, så min personlige mening er at HOf-betegnelsen er overflødig!

MVH, Tom