bakerocb
Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA
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 Posted: Wed Feb 06, 2008 7:06 am Post subject: MINIMUM INSTRUMENT AND EQUIPMENT REQUIREMENTS |
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2/6/2008
Hello Raymond, You wrote "....prepare for the worst." Not a bad slogan for
someone living in Minnesota, particularly this time of year. I spent the
first 17 years of my life as a Minnesota farm boy before I enlisted in the
US Navy in 1950 and vowed to never return to Minnesota in the winter time
again. Of course going through boot camp in the winter time at Great Lakes
Naval Recruit Training Center in Illinois did not endear me to that state
either.
Now to your question -- You wrote: "After skimming 91.205 and 8130.2F I was
not able to find anything that confirms or conflicts with the equipment
requirements listed in your table for experimental airworthiness certified
aircraft operating in VFR day conditions. Could (you) cite your supporting
information?"
The FAR's are written in a denial or forbidden format (lawyerese). The
sections state "No person may ........." and then go on to say what no
person is permitted to do at all or unless some specific criteria is met.
Essentially if one cannot find something in the FAR's that forbid one to do
something then that something is permitted to be done.
So the permission, if one is inclined to use that concept, to fly an amateur
built experimental aircraft in day VFR conditions with absolutely none of
the FAR 91.205** listed equipment or instruments installed is found here in
this statement in that aircraft's Operating Limitations portion of its
Special Airworthiness Certificate:
"After completion of Phase I flight testing, unless appropriately equipped
for night and/or instrument flight in accordance with 91.205, this aircraft
is to be operated under VFR, day only."
This is a very backward and awkward way, to normal people, for the
bureaucrats and lawyers to say it is OK to fly day VFR with nothing
required, but if you fly night or instruments you must look to 91.205 for
what is required.
If one thinks back to the early days of the amateur built experimental
aircraft movement you can realize that this freedom to fly with essentially
nothing in the way of equipment was not unreasonable. Look at the Breezy
http://www.aircraftspruce.com/catalog/kitspages/breezy.php for example --
pretty hard to put much in the way of instrumentation or equipment in that
airplane.
'OC' Says: "The best investment we can make is the effort to gather and
understand knowledge."
**PS: FAR Sec. 91.205 is not the whole story regarding equipping amateur
built experimental aircraft. Here is a quote from the latest version of my
table"
"However, depending upon other portions of the FAR's, certain items in
certain circumstances must not only be installed in amateur built
experimental aircraft, but must interface properly with ATC (Air Traffic
Control) equipment, other aircraft, or other entities external to the
aircraft. Altitude encoders, Transponders, communication radios, exterior
lighting, some IFR navigation equipment, and ELT's (Emergency Locator
Transmitters) are examples of such equipment. Usually TSO performance
criteria are cited to ensure this compatibility compliance. The FAR's must
be consulted for proper compliance in these arenas.
Therefore, the builder could expect that evidence that this type of
equipment in the aircraft is acceptable to the FAA could be required at some
point. The burden for complying with the provisions of the aircraft's
Special Airworthiness Certificate (which includes the Operating
Limitations), and the relevant FAR's, rests with the builder / pilot. "
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