The "major portion" calculation is based on a checklist. Checkmarks
are put in each column, one column for the kit manufacturer, one column for the
builder. In some cases you'd have checkmarks in both columns. You
add up the checkmarks. If you have more checkmarks in the builder column,
you have a 51% approved kit. That may sound like an
oversimplification, but that's how it works.
Form 8000-38 is included at the end of the proposed FAA Order 8130-2.
There are 18 line items under "propulsion". They include "fabricate
engine", "install engine", "fabricate propeller", "install propeller".
There another section titled "cockpit/interior". Some line items
include "fabricate instrument panel", "install instrument panel", "fabricate
electrical wiring controls/switches" and "install electrical wiring
controls/switches".
There aren't any sections for paint or interior.
My guess is Lancair ran the "checkmarks" at some point on the ES, and other
models and got the kits approved by the FAA. As we all know, we can buy
fastbuild firewalls, fastbuild engines, completed panels, even electrical
harnesses for some models. Those items are listed in the checklist, so
they DO affect the kit manufacturer vs. builder percentage. Maybe Lancair
had a few extra checkmarks in the builder column when the calculation was
done so they could provide engines, firewalls and panels without losing the
51%.
After a kit is approved, any changes to the kit require a reevaluation,
running the checklist again. It's my understanding that the ES Fast-Build
kit is approved, but I can't help wondering if the Millennium Super Fast-Build
ES kit was reevaluated. After taking a good look at the checklist, I'm not
sure how we got more checkmarks in the builder column to be honest with
you.
Mike