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  #11  
Old 01-04-2011, 10:51 AM
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rzbill rzbill is offline
 
Join Date: Nov 2005
Location: Asheville, NC
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Default Yes

Similar to above messages, pilot and passenger jacks and PTTs are mirror imaged at left and right extemes of panel (RV7). Mike jacks are wired for standard button mike usage if desired. Pilot stick PTT is wired parallel to Pilot side panel PTT.
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Bill Pendergrass
ME/AE '82
RV-7A: Flying since April 15, 2012. 850 hrs
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  #12  
Old 01-04-2011, 11:16 AM
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Which is why I have an Otto switch for my PTT. No five cent switch for me.

Even so, I did wire a set of jacks direct to the radio and have them mounted in a little box velcroed up under the panel. A spare genaric PTT resides in my vest (along with PLB, mirror, handheld, etc.). That rig will bypass a failed PTT and/or intercom. If that doesn't work, I have the handheld, but that's really for telling the rescue helicopter to turn left!

I also have a PTT on the passenger stick, but just recently added that so I could attend the NC formation clinic.
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Mike W
Venice, FL
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  #13  
Old 01-04-2011, 01:38 PM
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C-FAH Q C-FAH Q is offline
 
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Location: Ontario, Canada
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Default ptt

I have thought about a second one mounted on the panel for passenger use and also as a back up ptt. Because, sometimes, no matter how hard i push the trim hat on the stick.....it just wont transmit when I want it to !!
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Gary Wilcox
St.Thomas, Ontario. CYQS
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  #14  
Old 01-04-2011, 02:48 PM
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Use a quality switch with gold plated contacts.

Gold contacts tend not to corrode like silver or copper - the micro-amp currents these switches see is insufficient to 'blast' through the corrosion.

If you have a double pole switch - wire the two poles in parallel. This will double the contact area.

Doug Gray
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  #15  
Old 01-04-2011, 06:06 PM
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Snowflake Snowflake is offline
 
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Something to think about for side-by-side cockpits... Having a PTT for your passenger is handy. Having it where they can reach it without getting in your way is also handy. That being said, having it on the panel usually means you put it over beside the passenger somewhere, which makes it awkward to hold the stick, throttle, and answer tower's landing clearance on short final when you're using it as a backup.

I suggest an alternative: Place it on the panel near your throttle. Where you can reach it easily without leaving the throttle. It will still be accessible by the co-pilot, and will be more easily accessible to you while flying. Of course, it needs to activate both mic's.
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  #16  
Old 01-04-2011, 09:06 PM
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Thanks all for the replies. I will definitetly put another switch up-front....now just have to figure out the best spot.....
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  #17  
Old 01-08-2011, 11:08 AM
breister breister is offline
 
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Location: Atlanta, GA
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I too have a PTT on the passenger side stick - and on one flight simply swapped headsets with my wife. Yes, it was a bad $1 switch. Easy enough to reach the pax stick, but annoying to have to keep switching which hand is flying. Whole issue wasn't enough hassle to make me think of getting an expensive switch - I got another just like the first and it's working fine.

Additionally, my backup radio is a hand-held unit. It has it's own PTT.
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  #18  
Old 01-09-2011, 04:48 AM
Chappyd Chappyd is offline
 
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Location: Connecticut
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I put one on my sticks, but didn't feel comfortable that at some point down the road those wires coming out might fatiuge and fail. I put a pushbutton on the panel where I can hit it with my thumb while my hand is on the throttle.
I also put a back up elevator trim next to that.
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  #19  
Old 01-09-2011, 06:41 PM
Spindrift Spindrift is offline
 
Join Date: Jun 2006
Location: Portland, OR
Posts: 298
Default What switch?

The RV7 I bought doesn't have any PTT for the right seat, so I'm curious what switch (as in specific part number) you guys used for the panel mount switch? I definitely need one as it was pretty annoying when flying across the country not to be able to divide up the radio work with my co-pilot.

Thanks,
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RV7A QB kit -- sold and now flying in S. Africa
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  #20  
Old 01-11-2011, 12:32 AM
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rvmills rvmills is offline
 
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Quote:
Originally Posted by C-FAH Q View Post
I have thought about a second one mounted on the panel for passenger use and also as a back up ptt. Because, sometimes, no matter how hard i push the trim hat on the stick.....it just wont transmit when I want it to !!
Gary, Gary, Gary...I'll bet pushing the coolie hat nice and hard makes all the stuff in your baggage compartment fly up nicely though! The good thing about it not transmitting when you do that is...they can't hear you scream!

I thought about a secondary pax PTT, on or near the side rail, so the pax would keep his/her hand off the stick (when not flying), and fingers off the panel. Small momentary push button or momentary toggle (even a sub-mini toggle) would do the trick. For a backup pilot PTT, same thing on the other side would work I guess...or by the throttle.

Are there a lot of PTT failures happening? Not poo-pooin' the idea...just wunderin'.

Cheers,
Bob
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RV-6 "Rocket Six" N49VM
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Last edited by rvmills : 01-11-2011 at 12:34 AM.
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