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HelicopterHIROBOHirobo Freya › Freya setup for F3C
12-27-2010 10:30 PM  6 years agoPost 1
Hati

rrNovice

Perth, Australia

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Now that I got the E Freya close to finished, the questions regarding setup are cropping up. I don't have access locally to any current F3C pilots, so I'm hoping some of the knowledgeable guys here would chime in. Apologies in advance if some of the questions seem quite basic or even dumb, I'd rather ask them then make a idiotic assumption

First question.

On non F3C models I was told that once you set your swash level at midstick, check both extremes as well and use ATV to get the swash level both ends of the pitch curve. However a 13 page long setup "How to" written I think by Gordie some years ago, talks about using mixes (such as pitch to aileron) to level the swash at the extremes. I have an FX-30 (12 FG in a tray body) that can do those mixes. So which way is best to go?

Second question.

What is the "smart" way to run the heli: have normal mode only to spool up then use IU1 for hovering (governed) and IU2 for the upstairs stuff?
For sports flying I only ever use IU1 or 2 (different headspeeds) and normal mode is only to take off. Is there a "right way" or it's just personal preference?

As I am new to F3C I would rather have it right and learn to fly these settings opposed to just go with something that feels good at my current level of flying.

Many thanks in advance.

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12-28-2010 12:20 AM  6 years agoPost 2
Aaron29

rrProfessor

USA

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HPM? SWM?

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12-28-2010 02:20 AM  6 years agoPost 3
Dr.Ben

rrMaster

Richmond, VA, USA

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Aaron,

He has a SWM model.

Hati, my set up guide for eCCPM and the 8/12/14's is in the FAQ's on the Futaba website.

I use normal to arm the ESC and start the head turning, and then I have another to arm the 701's governor and keep it on even with the stick at full low between maneuvers. Most use 2+ idle ups. It's best to have one optimized for rolls and another for everything else. I use a few more to really tweak a set up for a few particular maneuvers. It's your choice.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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12-28-2010 05:33 AM  6 years agoPost 4
Hati

rrNovice

Perth, Australia

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Thanks Ben, I'll look it up. The one I have is a collection from various posts in one of the threads here on RR. I just copied them into a single word doc.

I'll give the IU business some thought I think. For now I'm only concentrating on the beginner schedule, so no rolls yet, but it's definitely something to do once I climb the ladder a bit.

BTW Ben, I posted some pics of my build here, if you feel like commenting on the tail drive shaft governor pickup implimentation.

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12-28-2010 05:41 AM  6 years agoPost 5
Dr.Ben

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Richmond, VA, USA

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I saw the pics, and I like the sensor mounting a lot. I'll use it on my new SDX once the 750 is worked out.

Expect a revised 701/ESC set up guide next week. I have to go back a try some things based on what Cliff Hiatt has found. I need to see if it works better on my model than limiter mode has.

Ben

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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12-28-2010 09:41 PM  6 years agoPost 6
Hati

rrNovice

Perth, Australia

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Found the setup guide Ben. Thank you. One question regarding it. Point #4 talks about setting the desired angle at centre stick of the main blades. Being F3C 3 to 4 degrees, as I understand. You set this with the pitch curve not by mechanically adjusting the linkages. Is that correct?

This "offset" (so to speak) remains the same for all flight modes as well or just hovering condition?

Re the governor sensor fitting, unfortunately the servo frame is not wide enough to allow mounting the sensor centred on the tail drive shaft. Trying to centre it will not leave enough "meat" for the fixing screw in the frame. I compensated a little for it by angling the sensor a touch.

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12-29-2010 04:12 AM  6 years agoPost 7
Dr.Ben

rrMaster

Richmond, VA, USA

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The pitch curve is centered mechanically around +1.5-2D. You then electronically raise the curve to get the model to hover at half stick. You can either revert to the straight linear curve without the electronic offset or do as I learned from Wayne Mann and set the idle up electronic offset to whatever pitch is needed to get the model to hover at half stick at 2000rpm. It works quite well.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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12-29-2010 09:38 AM  6 years agoPost 8
Hati

rrNovice

Perth, Australia

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Right, all the above sorted.

Here's an other little thing. I am setting up the governor and flight conditions on the bench. When I switch from normal to IU1 and IU2, the motor goes instantly to the preset rpm. I really don't want to put the running gear through that sort of stress, so I figured the 12FG's throttle menu speed settings would be just the thing to use. I set a 3 second delay both "in" and "out" which works once going from normal to IU1 to IU2. The reverse (IU2 -> IU1 -> normal) is just an instant drop of rpm, I'm guessing the governor of the 701 just chops it. I guess with the inertia of the blades in the air this will not be an issue, but if I try going back to IU1 without bringing the throttle to zero, it does the "instant" on rpm again.

Am I missing something or have I reached the limitations of the hardware I have?

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02-16-2011 02:09 AM  6 years agoPost 9
Hati

rrNovice

Perth, Australia

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Dr Ben, if I could trouble you for more information please...

I am following your setup sheet for the swash/head. At the point of setting up aileron and elevator maximum pitches, I have around 0.6 degrees of variation between the two "sides", i.e. 5.4 deg left aileron and 6 deg right aileron. I do realize that it is a minuscule difference that would be fine on a "normal" heli. Do you think I need to worry about it on this F3C bird? If so adjusting AFR for the relevant sides would be the way to go?

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02-18-2011 05:33 AM  6 years agoPost 10
Dr.Ben

rrMaster

Richmond, VA, USA

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Don't sweat it.

Fly the model and tweak the L/R rolls rates as needed. I seriously doubt the values would be functionally the same even if they were identical statically. There is way too much going on in a model due to torque and rotor direction to have a model roll at exactly the same rate left and right. It'll be close; tweak to perfection with the AFR's.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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02-18-2011 06:42 AM  6 years agoPost 11
Hati

rrNovice

Perth, Australia

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Great, thanks Ben. Will maiden it tomorrow, will see how she goes.

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02-19-2011 09:22 PM  6 years agoPost 12
Hati

rrNovice

Perth, Australia

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Well, "short" and "eventful" are the words to describe the attempt at the maiden

The one way sleeve shattered on me and consequently the tail drive gear on the main shaft split in two. All that within 30 seconds of spool-up. Luckily no other damage and the parts are already in my hands together with a third bearing support for the main shaft.

Take 2 will be on later today, weather permitting.

The aftermath...

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