ProductsGA MX HelperGA Wire HelperGA Build HelperNEWAll pricing & bundles
One-time purchase. No subscription · no monthly fees · no renewals — buy it once, it’s yours.
CURRENT GA BUILD HELPER VERSION: 1.1.2

Everything it does

A builder's log, the 51% arithmetic, the paperwork, and the hand-off at the end — in one file that works with no internet.

The overview

Where the build is, in one screen: hours, entries, photographs, tasks scored, Phase I, spend, and the major portion.

The overview of a build in progress: hours, tasks scored, spend, and the major-portion arithmetic
The overview of a build in progress: hours, tasks scored, spend, and the major-portion arithmetic

The builder's log

Who, when and where, as fields — because that is what AC 20-27G ¶7h asks the record to show.

The builder's log: who did the work, when, and where
The builder's log: who did the work, when, and where

Tasks and the 51% rule

The FAA's own fabrication and assembly checklist, with the 51% working alongside it
The FAA's own fabrication and assembly checklist, with the 51% working alongside it

The project, the kit, and the aircraft

The project: airframe, engine, propeller and kit
The project: airframe, engine, propeller and kit

Equipment and weight and balance

Equipment recorded as it is fitted, with weight and arm
Equipment recorded as it is fitted, with weight and arm
Weight and balance, worked out from the equipment you entered
Weight and balance, worked out from the equipment you entered

What it is costing

Costing: purchases, and a budget worked out from them
Costing: purchases, and a budget worked out from them

Certification and the FAA forms

Certification: the FAA forms, prefilled from the project
Certification: the FAA forms, prefilled from the project

Avionics, wiring and the reference shelf

Avionics configuration, kept with the aircraft
Avionics configuration, kept with the aircraft
Wiring brought across from GA Wire Helper
Wiring brought across from GA Wire Helper
The hardware and torque reference
The hardware and torque reference