Jun 13, 2020     Tail Pieces Fabrication       Category: Empennage

Tail Pieces Fabrications

  Jun 13, 2020     Gear Leg Fabrication       Category: Landing Gear

Main Gear Fabrication

  Jun 13, 2020     Front Gear Leg       Category: Landing Gear

Here. the grear leg is being fabricated using a purchased axle. This is a 1.1/2" dia axle. The ends were formed with flat areas at the bolt.

  Jun 12, 2020     Turtle Deck Stringers Attachment       Category: Fuselage

3/4" diameter tubing is used for the turtle deck stringers. The attachment method on each is a socket connection of sorts where a welded stud is attached to the fuselage and the aluminum tube (stringer) slides over it. Cotter pins or pull rivets will be used to secure the stringers in place.

  Jun 12, 2020     D Windows       Category: Fuselage

D Windows in Place. The D windows have been one of the few parts that seem to be not worth attempting to fabricate from scratch. If a person were to build rectangular window frames, or similar shape, scratch building them may be appropriate.
I using three welded tabs on each window post to hold the plexi-glass in place. A decorative piece of trim will cover the outside of the posts and tabs, and serve as a gap seal for the upper door.

  May 27, 2020     Upper Cabin Window Header and Trailing Edge of Wing       Category: Fuselage

I built a set of short wings to use to mock up the upper cabin as I needed to locate the position of the upper window header and the location of the trailing edge of the wing ribs at the cabin.

  May 27, 2020     Upper Cabin Structure       Category: Fuselage

Upper Cabin Structure - Cut and fit all tubes around the upper cabin. Fabricated fixtures to ensure accuracy.

  May 27, 2020     Bending C-Channel for Fuselage Formers       Category: Fuselage

Bending Piper style C-Channel for Fuselage Formers - Curved channels are needed to form the shape of the exterior of the fuselage, typically around the boot cowl area. After bending a 1" strip of 0.020" thick steel into a C-Channel shape (Piper Channel), the channel can be bend to a bowed shaped. Using a tape measure to draw an arc on a sheet of plywood provides the proper curve to fit to. To bend the channel, cut a hole in a wood block and gently bend the channel to shape. This process is used on a number of channels throughout the construction.

  Mar 29, 2020     Project Description Category: Introduction

Welcome to my Scratch Built Super Cub Project Log Page.
This a scratch built tube and fabric airplane being hand built using the original Piper PA-21 (PA-18) Super Cub airplane prints now available by open source.
The intention is to build a moderately light weight "early version" Super Cub. The first production Super Cubs lacked wing flaps,were powered by Continental C-90 engines, included a single 18 gallon fuel tank in the left wing, and were soloed from the front seat.
My Cub will include two wing tanks, front seat solo,no flaps, and likely a larger engine. New Super Cubs today typically include modifications to the air frame which include overhead "X" bracing in the canopy section. two additional diagonal tubes in the forward cabin area, and strengthening tubes at the rear most tail section. All of these mods will be included in this project.

  May 01, 2011     Rudder Pedal & Heel Brake Fabrication       Category: Fuselage

Rudder Pedal and Heel Brake Pedal Fabrications - Not having a permanent and large enough welding table to fabricate steel fixtures, I elected to simply use wood as shown. Wood is easy to work with, however you do need to ground the welder to the part instead of to the welding table, and of coarse wood burns. By only tack welding the parts, then finish welding out of the fixture will help prevent wood smoke...
Using wood fixtures are also easy to save for the next project, if they can be found...