Wing Span 3,200mm
Aspect ratio 15.5
Profile HQ/W 2.0/7.5mod
Wing area 65.5dm2
Wing load
Structure Carbon/balsa/carbon
Portability 2 pieces


Tail type/Profile Cross-tail/SD8025
Wing Span 594mm
Aspect ratio 6.0
Wing area 5.90dm2
Total weight 2285g (Ballast:1715g)
Radio gear
6 Servos
Fuselage Length

Gunter Aichholzer and Georg Kraus in team with Ulli Weber, Gunter Lechner have made a new F3B ship. The profile of Airfoil is HQ/W 2.0/7.5mod Dr. Helmut Quabeck, which realizes a trendy airfoil, that is, thin and high stiffness. Airfoil never warp nor creep against heavy wind. Using this excellent airfoil, Mr.Aichholzer developed the Champion ( shown in this page) and Mr. Kraus developed the Royal-flush. Those ships were seen in the Munchen Waterfalls F3B World Championship. (See Roman Vojtech Munchen F3B)

Champion is the F3B that revive Cross tail using the state of the arts. It was made for private purpose, not for commercial purpose. Champion is a luxuriant F3B so that lots of Carbon material are used for its airfoil. Cross enable ship to minimize speed loss due to the oscillation in the yaw direction during dive from pinnacle in the Task C, and go into B-side turn. It is a focal point if F3B ship with cross tail will change the trend.

Mr. Michiyama is one of lucky pilot who can got the Champion in Japan. The flights of Champion by him are shown in the following pictures. He is a reliable member of "Steppenwolf", one of famous F3B team in Japan.

Aichholzer Gunter/Ulli Weber/Gunter Lechner
(quoted from Aufwind 5/2000 Seite 45)
3View Plan
Not for sale
inside mold Inside Carbon Inside carbon process
Molds, Preinstalled wiring Opened molds carbon/balsa/carbon
(A-model case)
Inside Carbon Process
ballast intake ballast with Royal-flush
Carbon Joiner of Stabilizer

Ballast inlet is side of fuselage

Copper tube is used for Ballast. His seal is stamped

With a sister ship,
Royal-flush(white one)

Munchen F3B Team radio gear Mr. Michiyama
His F3B team in Munchen Waterfalls, 2001 Radio Gear.
Servo is upside down
Wood Servo frame enable
to remove servo easily.
Mr. Michiyama with his Champion, Japan
Carbon Joiner Stabilizer Launch by Mr. Hashimoto go into the sky
Carbon Joiner
(small dihedral)
Stabilizer Launching by Mr.Hashimoto, Japan Go!!
Task C from B-side Task C A side turn landing Mr. Michiyama
Return from B-side of Task C After A-side turn of TaskC
Stable landing
Mr. Michiyama and Champion

Mr. Michiyama's Comments
(Jan. 8,2002)
It was lucky for me to get Champion from Mr. Aichholzer Gunter. Because this ship was the Champion used in the World Championship, there left many battle scars. There is nevertheless no breakage that needs to be fixed. In other words, no problem! It's fuselage is very slender similar to that of Estrella. The total ballast is 968g at maximum. The torsional rigidity at the root of C-tail is enough so that I could not observe any torsion of the fuselage at launch in the strong cross wind.
The weights of each portion are as follows: Each right and left airfoil is 705g. Fuselage: 820g, whole stabilizer 50g, Joiner, 120g. Hence total is 2400g heavy. The biggest focal point is its profile HQ/W 2.0/7.5 mod. The thickness of airfoil at root is 18.4mm(7.51%), which means that model was precisely molded.
Since flight condition was very good at its maiden flight, Champion has good response to thermal, and also has a high buoyancy regardless of thin airfoil. I was worrying about its stiffness because of thin airfoil and its weight (2400g, but 2200g in usual V-tail ship). However it was no cause for worry. There could not be observed no deflection except deflection of gainer at launch under the strong against wind, 7-8m/sec. The obtained height might be almost the same as Estrella. Because Mr. Gunter provided the trimming values, I could go forward without any difficulty. However it will take to reach to my own Champion. I can not discuss if C-tail is superior or not for the time being, because the crucial issue resides in the pilot of Champion.

Standard Trim by Aichholzer Gunter
Date:Jan. 25, 2002