I read in sci.electronics.design that Michael usenetreplies@thisoldairp
lane.com wrote (in om
) about 'MD26-28 400Hz inverter - not very reliable', on Fri, 18 Feb
2005:
Peter wrote:
I can build one allright. I just wondered what is involved in getting
such an approval for making something like this.

What's mostly involved is spending a bunch of money. The approval
comes from the MIDO, but they won't even talk to you unless you have a
thick sheaf of documents generated by a DER. In theory, this is
someone who knows what he is doing. In practice, it's a cushy
retirement gig for FAA bureaucrats.

You would like to think that the PMA would assure some level of quality
and reliability, but all it assures is a nice retirement income for an
'engineer' who was never employable in the private sector.

Michael

What are MIDO, DER and PMA?

Mass of Indolent Doddering Oldsters?

Don't EVER Retire?

Paradise for Mumbling Ancients?
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk