A133

DESIGN: Uni-UAV ~ Control - Flight

Servos:

What is a Servo; http://www.seattlerobotics.org/guide/servos.html

Servomechanism; http://en.wikipedia.org/wiki/Servomechanism

Futaba servos; http://www.futabarc.com/servos/servos.html

This appears to be Futaba's strongest; 1.37 lb-ft. http://www.gpdealera.com/cgi-bin/wgainf100p.pgm?I=FUTM0255

From Rick; 27 lb-ft. http://www.vantec.com/ssps105.htm

Notes:

The Spider Dragonfly ~ Control - Flight - Spider may be the best control method for the tip on the interleaving configuration. This is because the blades of the other rotor do not pass above the hub.

For information on proposed Flight Control system see; UniCopter ~ Control - Flight - Independent Root & Tip (IRAT)

This is the proposed root system for the above DESIGN: UniCopter ~ Control - Flight - Independent Root & Tip - Blade Root

OTHER: Rotor Concept - Reverse Velocity Utilization - Traversing Root Pitch Axis

Cyclic and collective only effects the tip of the blades. Or, does it effect the whole blade and the root pitch is a + or - from this?

If http://www.unicopter.com/1516.html#Option is being considered then the cyclic and collective will only effect the tips of the blades. A separate control, which can operate a lot slower than 1/rev could adjust the root pitch travel boundaries.

Spider? http://www.synchrolite.com/Dragonfly_Spider.html

Future Control Considerations:

Electric flight actuators Ref ' Helicopter Electro Actuation Technology (HEAT)'. http://www.rotorsales.com/News/050506_2.htm?Action=745115149&ID=a4a6a8af-a08c-4ff6-b8c3-9dc2ed54f7c7

This is a small (25 employee) Canadian company. http://www.micropilot.com/. There is an article on it in the business section May 30, 2006 Globe and Mail.

See: UniCopter ~ Control - Flight - Independent Root & Tip - Blade Root

Root Control:

One control should handle the root. The pitch of the port and the starboard rotors will always be the same. Therefore, one central servo with mechanical rods the two rotorhubs should do.

Tip - Collective:

One control should handle the collective. The collective of the port and the starboard rotors should always be the same. Therefore, one central servo with mechanical rods the two rotorhubs should do.
Could be the same arrangement as the root control sketch above.

Tip - Cyclic:

Two servos for each rotor will handle the cyclic. These servos should be in their respective rotor pods.

General information on governors: [SynchroLite ~ Control - Flight - Governor]

Consider hydraulic flight controls. The flight controls, rotor governor and higher harmonic control could be combined. There may also be a need for hydraulic assist on the cyclic. A distant consideration would be a sidearm controller.

Remote Controller:

Schulze future 40/160H

Helicopter version of the worlds most powerful speed controller, originally developed for big powerboats. Lipo batteries up to 13 cells can be used under a continuous load of 160(!) amps (210 amps short). Usage in Joker 2 in combination with Plettenberg HP 370/40/A2 and 12s3p-Lipo-battery for Extreme-3D. New helicopter software included (expert mode). Weight: 220g (1/2 lb.)

Ord.-no. 1645 Schulze future 40/160H

http://www.joker-usa.com/new.htm#

Radio Control: (Buyout)

The minimum number of channels available on a helicopter radio is five: throttle, collective pitch, tail rotor pich, fore-aft cyclic and left-right cyclic. More channels may be used for other purposes: gyro switching, lights, landing gear.

______________________

Receiver: (Buyout)

_________________________

Transmitter: (Buyout)

Primary Controller:

For reference see; Electrotor - Control - Flight & Power - Primary Controller

Servos: (Buyout)

Related UAV Web Pages at Outside Web Sites:

A SMALL SEMI-AUTONOMOUS ROTARY-WING UNMANNED AIR VEHICLE It could be interesting for control. I have copy of this on the removable drive and hard copy.

May be of some value:

DEVELOPMENT OF A REAL-TIME FLIGHT SIMULATOR FOR AN EXPERIMENTAL MODEL HELICOPTER (R50 model helicopter);- Stored in; /Helicopter/Misc Files/munzinger_msthesis.pdf

Same Page ~ Different Craft: ~ Must be changed UniCopter ~ SynchroLite ~ Dragonfly

Introduction Page | UniCopter-UAV Home Page | UniCopter Home Page | Nemesis Home Page | SynchroLite Home Page

Latest revision; September 13, 2007