GordonTurner wrote:Like you said Chris, open to interpretation. If the secondary ignition is only there as a backup and with it off the battery will charge, then the generator is adequate. Similarly, the wording under night says source of electrical energy, so that would include the battery which should generally be adequate to power through an abnormal situation, and/or take up the extra load for non-continuous loads like flap extension or landing light use for landing. This isn’t Part 23, so the interpretation is up to the experimenter.
IFR is still regulated in Homebuilts by virtue of your flight limitation on your Airworhiness Certificate to wit:
“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.”
Regardless of legality, it's a poor decision to purposefully reduce redundancy of critical systems like ignition in IMC flight. It's also critical that you make sure you have enough electrical power to maintain your systems and are able to charge your battery.
I'm not attempting to be a huge nay sayer, I am usually anything but.....I just think people need to VERY strongly consider the dangers of IMC flight in a marginally equipped airplane. By all means, it's your plane, and a free(ish) country. So have at 'er.