1/4 Scale UniCopter -
Rotor
Rotor:
General:
'Absolutely' Rigid Rotors incorporating the Advancing Blade Concept.
OTHER: Rotor Concept - Reverse Velocity Utilization - Traversing Root Pitch Axis
Hub:
The rotorhub and blade roots will result in drag. I assume that most of this drag is the result of the voids between the rotating blade roots. If these voids are filled in to present a more aerodynamic profile it might; 1/ restrict the airflow to the upper quadrant of the propeller and 2/ if the disk has a forward tilt then this enlarged diameter hub will present resistance to the free airflow.
Consider using these void areas as scoops that drive air into the center of the hub's statick mast and on down into the engine compartment
Blade:
Main rotor blades CF
The fully symmetrical rotor blades (except Maxi-blades) are entirely made of CF and have additional CF-rovings for taking the centrifugal force. The center point is parallel to the front edge and is in such a position, that they are a good compromise between agility and autorotation reserve. This blade is specially made for the MFS-rotorhead.
Ord.-no. 1010 right turn ("Joker")
Ord.-no. 1011 right turn ("Acrobat")
Ord.-no. 1020 left turn ("Joker")
Ord.-no. 1030 right turn (Maxi-Joker)
This will allow the closing blades, which takes place at the front, to pass each other safely; at a reduced 'V' angle. DESIGN: UniCopter ~ Rotor - Disk - Dihedral at Blade Tip
Paddle Blades:
See drawing 1515_Tractor.dc
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Port Rotor: |
Starboard Rotor |
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Azimuth |
Radius |
Azimuth |
Radius |
Vertical Ctr-Ctr |
Vertical Ctr-Ctr |
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100 |
12.40" |
160 |
2.29" |
0.71" |
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130 |
19.9" |
190 |
13" |
0.48" |
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135 |
25.1" |
195 |
18.38" |
0.47" |
2.04" |
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Latest revision; January 19, 2008