windsheer

Is their a way to program the 12fg so that the gear doors open, retreact the gear, and then the gear doors close again all from one switch? Then move the switch to the other postion to open the gear doors, extend the gear, and finally close the gear doors again.

It thought about vertual channels and logic, but I can't figure it out. It's no problem to open the doors and retract the gear. The doors would then stay open untill the gear was retracted. That's not what I want. I need the gear doors to always open then close after the gear cycles from one switch. Any ideas?

BuschBarber

My Feedback: (2)

I have not done this myself, but I have flown turbine jets with friends who have the 12FG and insist on Door Sequencing for their Scale Jets. I believe the best method is to purchase gear door sequencing units. Some are electronic, now, and much more reliable and easy to program. I remember a number of years ago, a friend built a Yellow F18, with twin Ducted Fans. He used a Robart Door Sequencer that took him two hours to set up his jet. It came with many screws that had to be turned In or Out until everything worked properly. It was totally air operated so the screws Increased or Decreased air pressure, accordingly.

I don't know if you have as many options, for Door Sequencing, with the programming in the transmitter.

coriolan

EMS (Jomar) has a sequential gear door servo control for that purpose:
http://www.emsjomar.com/SearchResult.aspx?CategoryID=6

youngguy

My Feedback: (7)

Can be done using two retract valves, one for the gear and one for the doors, and two seperate channels. Operate both channels from the retract switch and use the in and out servo speeds on each channel to squence the doors and gear. This allows you to slow one servo so that the doors open before the gear comes down and the oposite for the gear going up. Very easy to set up and no mixes are involved although you could mix the two channels and use delayed operation.

Krysta

You may want to check out our FAQ from our website on setting up gear and doors, you should find it helpful.

http://www.futaba-rc.com/faq/faq-12fg-q1062.html

Sincerely,
Krysta
Product Development & Support Specialist
Futaba Service Center USA
[email protected]

BuschBarber

My Feedback: (2)

Are you talking Air Retracts and Doors or Servo Actuated Retracts and Doors.

The jets I have seen with complicated Door schemes have air cylinders on each door. Some require the doors to Open, Retract the gear, Close, Open, Drop the gear, Close. When you have two Mains and a Nose gear, it requires more than just some programming in the Tx.

Your application may be simpler and perhaps Scale is not as important.