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Auto Pilot

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topglock(at)cox.net
Guest

Posted: Fri Jan 13, 2006 1:03 pm Post subject: Auto Pilot

Does anyone have any experience with the Trio Avionics 

(http://www.trioavionics.com)EZ Pilot and their Altitude Hold system? 

All input is appreciated...



Jeff - N55XS

130 hours

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peter.rees05(at)ntlworld.
Guest

Posted: Fri Jan 13, 2006 1:34 pm Post subject: Auto Pilot

Hi Jeff



We have a trio EZ Pilot fitted to Hotel India. Very pleased with it indeed. 

Can't speak highly enough of the service - We have a somewhat obscure 

(though very good) GPS which has a slightly different data stream than the 

normal NEMA standard. We sent our GPS back from the UK and Chuck wrote some 

special firmware for us (and even paid the return carriage) - took less than 

a week.



The servo they supply is the navaids one. When ours arrived, its quality was 

rubbish!!!Ours had a tight point which required quite a bit of 'fettling' 

for me to sort. Also, the feedback pot is mounted on a plate which is too 

thin meaning that the gear on the feedback pot doesn't mesh tightly and thus 

the servo hunts (well it did until I fitted a thicker plate and got rid of 

the plastic mounting screws). The endstop screw and those which hold the 

output crank arm are also rubbish (so, quite well made really!!) - the 

screws are a different thread from the nylocks into which they should engage 

if they were long enough!



The Trio head weighs in at about 4oz and comes with a variety of hardware 

for mounting and electrical connections.



I'd certainly recommend the unit (though from what I hear, the TruTrack 

servo may be of much better quality out of the box - the navaid servo is 

fine once you've ironed out the bugs that are shipped with it).



I've not had the chance to see / play with their alt hold (and hydrocarbon 

fuel would be long since have ceased to be available by the time the PFA 

approved the fitting of the unit).



Peter

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bruce(at)justbruce.com
Guest

Posted: Fri Jan 13, 2006 4:50 pm Post subject: Auto Pilot

Hi Jeff (and others), 



I thought I'd mention that although Trio continues to support the Navaid

servo (which may appeal to those who already have a Navaid Autopilot

installed), they currently ship a much more robust and sophisticated digital

servo which they call the Trio Gold Standard Servo.  



Bruce

XS142

Tracy, CA



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topglock(at)cox.net
Guest

Posted: Fri Jan 13, 2006 8:42 pm Post subject: Auto Pilot

Peter and Bruce,



Thanks for your replys.  I'm impressed with the information I've been 

able to gather on the EZ pilot and am aware of the new servos.  Thinking 

very hard about installing the unit, then, later the alt hold. 

According to their website, there are some upgrades, in the works, that 

will do decents and ascents that can be programmed into the unit.  Now 

that would be nice.  When the 396 says vertical speed profile 500 fpm, 

just push a button and the unit takes you down to pattern altitude, 

automatically.  Oops, I think I just talked myself in to it... 



Jeff - N55XS

130 hours and still grinning...



Bruce wrote:

[quote] 

 

 Hi Jeff (and others), 

 

 I thought I'd mention that although Trio continues to support the Navaid

 servo (which may appeal to those who already have a Navaid Autopilot

 installed), they currently ship a much more robust and sophisticated digital

 servo which they call the Trio Gold Standard Servo.  

 

 Bruce

 XS142

 Tracy, CA

 

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