"keith" wrote in message
news | I guesss. Hydrogen/oxygen burns without a visible flame. The shell of
| the Hindenburgh was obviously on fire. ...and it was painted with an
| aluminum paint (Iron??), which was quite normal at the time.

Apparently this was the first time this particular product was used - and
the last as the Zeppelin company did further tests on the paint and never
used it again.

N