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HomeContestAircraftHelicopterAerobatic FAI F3C F3N Contest › TREX 700E F3C FBL HEAD CHOICE
01-03-2014 06:33 PM  4 years agoPost 1
robi-italy

rrNovice

ITALIA

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Hi everyone, I'm seriously thinking of switching to FBL, but do not know which head to choose from (DFC - FL old style - FL new style:confused ..... what do you recommend??
best regards
Roberto

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01-03-2014 06:45 PM  4 years agoPost 2
robi-italyrrNovice - ITALIA - My Posts: All  Forum  Topic


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01-03-2014 07:19 PM  4 years agoPost 3
rexxigpilot

rrProfessor

Florida

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I would not use the DFC for F3C. Driving the swash with the DFC configuration places a side load on the dampeners in the head. As you change headspeeds for various components of the F3C routine, hovering versus upstairs, the load on the dampeners will change. This will also slightly change the head geometry and make the FBL controller do more compensation. There is no functional difference in the heads between the bottom and middle picture. Both use a dedicated swash driver. The replaceable grip arms on the lower picture may be helpful in a crash.

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01-03-2014 08:00 PM  4 years agoPost 4
robi-italy

rrNovice

ITALIA

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thanks rexxigpilot, will opt for the head in the bottom figure.
you think I will be able to use the original F3C blades on the FBL head??
Best regards
Roberto

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01-03-2014 08:01 PM  4 years agoPost 5
Salesmanheliboy

rrVeteran

Nashville, TN

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I did a little testing with the DFC head for f3c and was unable to have the model sit well at lower headspeeds; aerobatics abs rpm's above 1600 were fine.

Tim

Futaba - Kontronik -SAB Helicopters - GensAce -http://rotorworld.co.uk/

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