Hall Bulldog Wing Construction Progress - March 2021

Part of The Hall Bulldog Project — documenting Bob Hall's 1932 Thompson Trophy racer.

These photos from Kevin Kimball document the Hall Bulldog wing construction progress as of March 2021. The wing features a traditional wood construction with built-up truss ribs and wooden spars, following the design patterns common in 1930s racing aircraft.

Wing Structure Overview

The Hall Bulldog wing uses an elliptical planform with the NACA M6 airfoil section. The internal structure consists of wooden spars, compression members, and built-up truss ribs. This construction method provides excellent strength-to-weight ratio while maintaining the authentic appearance of the original 1932 aircraft.

Hall Bulldog wing construction overview — Wing structure showing the elliptical planform and internal framework

Hall Bulldog wing rib detail — Detail of the built-up truss rib construction

Hall Bulldog wing spar detail — Wing spar and rib attachment details

Hall Bulldog wing internal structure — Internal wing structure with compression members

Hall Bulldog wing construction detail — Wing construction progress showing rib spacing

Hall Bulldog wing framework — Wing framework assembly

Hall Bulldog wing tip construction — Wing tip area construction

Hall Bulldog wing leading edge — Wing leading edge and nose rib construction

Hall Bulldog wing root area — Wing root area with attachment fittings

Hall Bulldog wing assembly — Overall wing assembly progress

About Kevin Kimball

Kevin Kimball of JKE Works in Mount Dora, Florida is the structural engineer for the Hall Bulldog replica project. His expertise in vintage aircraft engineering complements the 3D modeling work done by Mirco Pecorari of Aircraft Studio Design. Kevin is responsible for translating the 3D models into buildable structural designs with proper load analysis and material specifications.