New! Orin Humphries' March 2024 column: LED lights and color perception, Koverall and rib stitching, turbulators, finishing resin surfacing, hotter glow plugs, and the last of the 4BK Carb notes

New! Orin Humphries' January 2024 column:
Two-needle carburetors, the future, and Stearman yellow

New! Orin Humphries' November 2023 column: Doing the Nats >>

New! Scale at the 2023 Northwest Control-Line Regionals See article

New! Orin Humphries' August 2022 column: Remote needle valve assemblies, and more

New! 2022 Northwest Regionals Scale report and photos See article

From kit to Nats in 84 days See article >>

Orin Humphries' December 2021 column: Sport planes and prop pitches >>

Orin Humphries' October 2021 column in Scale Matters: Instrument panels

Orin Humphries' September 2021 column in Scale Matters: Building a vintage kit

Orin Humphries' March 2021 column in Scale Matters: Those baffling fuel tanks

2019 Northwest Regionals report and photos See article

Orin Humphries' February 2019 column in Scale Matters: Vacuum molding Part 2: Preparing the canopy plug

Orin Humphries' December 2018 column in Scale Matters: Vacuum molding Part 1

Orin Humphries' October 2018 column in Scale Matters: Trust nothing about .049s

Orin Humphries' July 2018 column in Scale Matters: Boyhood recollections at the Regionals

Scale at the 2018 Northwest Regionals See article

Orin Humphries revisits .049 engines in his April 2018 column in Scale Matters:
Of Blackbirds, .049s and the pursuit of knowledge

Orin Humphries discusses fuel for 1/2-A engines in his November 2017 column in Scale Matters

Orin Humphries discusses 1/2-A engines in his July 2017 column in Scale Matters

A classy shutdown for the judges: See article

The canopy slider, Part 2 See article

The canopy slider, Part 1 See article

Copiers and French curves in scale building See article

Orin Humphries tests strengths of longerons and stringers See article

Orin Humphries tests I-beam strengths See article

Orin Humphries' battle to collect accurate scale data See article

Orin Humphries' F-84E Thunderjet project Story and photos

Scale Matters by Orin Humphries