|Herr Engineering Champ|
At this point I took my Guillow’s Super Cub out again to fly for a comparison; it flew much better like it always has. The climb is smooth with no hint of a stall, sometimes there is a slight wobble in the flight path. Extra dihedral was used on this airplane, maybe too much. After building a not very successful Guillow’s Cessna 180 I concentrated on building the Super Cub lighter, especially in the tail. No noseweight was needed for the Super Cub, total weight with rubber was 25 grams. With noseweight and heavier rubber in the Champ total weight was almost 22 grams.
|Champ Wing Half on Top of Super Cub Wing|
Some approximate math calculations were done to compare the wing loadings between the Champ and Super Cub. Wingspan of the Super Cub is 20” with a chord of 3” while Champ has 18” span with 2 ½” chord. Both planes have rounded wingtips but I used the area of rectangular wings and the calculated the wing loadings which showed that the Champ had a 16% greater wing loading.
|Super Cub Chased by a Gull|
Someone with success with the Herr Champ had built to 14 grams total weight, at that weight I would expect the Champ to fly well. The design of the kit looks good like it should be light but the strips of wood felt heavy to me as I was building, I should have substituted some lighter wood.