I began the design phase for an augmented Cardinal in late 2011 to update the small cruiser with newer features like the "Super Manx"-type empennage. This was due primarily to answer requests to do away with the tandem biplane arrangement of the original Cardinal, and to more closely replicate aircraft by having the vertical stabilizer sit above the horizontal stabilizer. During December 2011, testing proved somewhat trying as an early prototype resisted the new tail fins. Because of these delays, I designed the Super Voyager as an interim aircraft. After the tremendous success of the Super Voyager, I shelved the Super Cardinal project until restarting work on it in mid-March 2012. Upon reapproaching the prototype, I decided to scrap the existing design and go with a new one. Testing went well and the aircraft proved itself an excellent performer.
Like the original Cardinal, this aircraft is very capable, and can be used in classrooms easily. Using the Super Cardinal would be a great way to introduce students to aviation due to its simplicity and versatility.
Some potential experiments possible with the Super Cardinal include:
- Glide ratio
- Weight and balance
- Hangtime versus other aircraft
- How surface inequality can affect aircraft (geometry/shape studies)
- Physics experiments
Step 1: Materials
1 Piece of 8 by 10.5 inch graph paper
Step 2: Begin Construction
After the fuselage is made, take another sheet of paper that is folded in half along the lines of boxes. Mark out the wing as shown (3 boxes in length, each with an intersection sweep of 1/4 (1 box length lost for every 4 boxes outward from the fuselage.). Then cut it out. Then mark and cut out the horizontal stabilizers as shown (2 boxes in width, 1 box in length with a swept portion of 1 box of length decaying every 2 boxes of width).
Solid lines indicate places to cut. Dotted lines indicate fold lines.
Note: 1 box = 0.25 inches