Hey guys, I want to use the snap roll button (also upper left trainer button) to activate a tank drop servo. So far, I haven't figured out how to do that. I seem to remember someone used it for a tank drop some time back. Does anyone remember, or know how to program the snap roll button to only activate one servo to drop a tank, instead of actuating the ailerons/elevator for snaps?

Any advice would be very helpful.

Thanks, Les Morrow

First inhibit the control for the channel being used to drop the tank - controls are inhibited in Code 17. This is done so that the drop servo will only work as a result of pressing the snap button. For example, if Aux5/Ch10 is to be used for the drop servo, Inhibit AUX5 in the Code 17 function.

Next, set up a program mix, mixing the channel that is to drop the tank to itself (eg. AUX5 to AUX5 or Ch10 to Ch10). Touch "Page" and select the Snap Switch as the switch to activate the mix. Page back to the percentage display and while depressing the snap button, dial-in the percentage required to move the servo. If the servo travels in the wrong direction, touch "Turn" to reverse the direction of the mix.

When the switch is not depressed, the servo will probably be close to centered. If more travel is required, a precentage can be input with the snap switch not depressed, causing the servo to deflect in the opposite direction of the drop.

That should do it.

Len Alessi
Team JR

now how do you do the following :

2 bombs to drop, snap roll button only drops one at a time, based on flipping a selector switch for the desired bomb .. i have it set up where i use the original dial for ch10, and mix an offset with the use of the snaproll button , so if the dial is all the way in one direction, the button ofsets the travel to full deflection (im using the BVM bomb drop set up for the king cat) ... when the knob is at center, the button has nothing to ofset and therefore will not do anything .... .. i was unable to find a way to take the "selector" function off of the original aux5 controll knob ... seems like you can not throw a mix on top of a mix ???


i also have the snap roll button set to throw an overtravel ofset onto the gear channel.. i have a JR channel expander on this channel .. gear up and down is defined on the ch expandedr, and when the gear is up, allows the overtravel to kick off the smoke pump via the ch expander (smoke and gear on the same channel )


i still would like to move the bomb sellection off of the knob and onto a 3 position switch (hopefully a D/R switch as im using the aux 2 switch for the aux channel needed for my AMT turbine )



Wojtek

I believe Tom Dodgen uses that same setup dialing one way or the other and using the snap to drop. Pretty cool programming IMO.

Do you have Flight Modes enabled? Just asking because if they are active, it limits the number of other switches that can be used to control program mixers. As far as I know, you will not be able to use any of the D/R switches to control a mixer, not withstanding the D/R switch that is used to select Flight Modes if they are enabled.

I don't have a TX here with me so I can't be sure, but if Flight Modes are not active, you might be able to use the 3-position Land/Flap switch to control 2 different mixers to get the job done.

Len

thanks for the reply Let .. i am however using the flap 3 position and aux2 ..... no flight modes for me yet .. looks like for now i will use the dial as a selector .. i guess im just being a bit picky .... always comparing to the 9z, and its programing abilities

thanks,

Wojtek

Maybe it's time to delve into flight modes. If you enable flight modes, you could activate all 5 of them giving you 3 normal flying modes plus 2 extra switch positions on a 3-position Flight Mode switch to control 2 more mixers that, when used in conjunction with the Channel Xpander, might just accomplish what you want.

Just as an example which may, or may not, apply to your set up, you could have one Flight Mode (FM) setup for Takeoff, one for "Flying" and one for landing. Then the other 2 FMs could be set up the same as the "Flying" FM with the addition of activating a Pmix/Xpander to drop the bombs.

Len

Guys, thanks for all the information. That's what I needed. I have used the flight modes on another airplane for crow some time back, but on the Mig, I'm using the 3 position switch for flight, take off flaps, and landing flaps with the speed brakes programmed into the landing flap position. I've been wanting to use the snap roll button for tank drop for a lot time since it is so convenient, but wasn't sure how to get it working like I wanted. This answered my questions.

I appreciate your quick response and will do the mixes.

Thanks again, Les[sm=thumbup.gif]