[Avodah] cohen in plane over cemetery

[Eli Turkel via Avodah]

As previously mentioned one of the heterim for flying over a cemetery is
that a plane is not made from the metals mentioned in the Torah.

When looking at responsa it is important to take into account the change of
plane construction of the years. In fact the Wright aitplane was made
mainly from wood!
Todays planes are made mainly from Alumimum and titantium and various
composites
see
http://howthingsfly.si.edu/ask-an-explainer/what-kinds-materials-are-used-make-aircraft

-- 
Eli Turkel
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