thehaze

Hello,

I recently got a PZ t28 PNP. The manual does not offer a lot in terms of how to setup the airplane (control throws, dual rates, expo). I'm hoping someone here can offer some advice. I'll be using a DX6 so I have a number of options available to me.

I have no trouble with my GWS e-starter, and cut my teeth flying a Aerobird 3 so I think the t28 is within my capabilities as long as I take it easy. I've also spent quite a bit of time on a sim. I'm just a little uneasy because I took a PZ spit out a long time ago and wrecked it on the maiden flight (before the estarter). I remember how that felt and I really don't want to go through that again. So I guess what I'm looking for is a setup that gives me enough control authority to have it fly well. But enough stability that I won't be all over the place. Any thoughts?

*rider

Hello thehaze,

When I first flew my t-28 I configured 70% rates on all surfaces, and +35% expo (low) and 100% rates and +30% expo (high). I flew low rates only the first few flights until I was comfortable and then made adjustments from there. D/R & expo is somewhat personal preference of course, just sharing what worked for me.

Before setting the d/r & expo, I ensured all control surfaces were neutral when the servos were centered and my TX trims were also neutral, by making mechanical adjustments, and I had each clevis attached to the outermost hole on the control surface horns. This made very little in-flight trim necessary. I also double-checked the CoG and made some adjustments to the nose wheel as it was not tracking on the ground very well initially.

My maiden was quite good - I never pushed the throttle past ~65% and flew a planned, predictable figure 8 for several minutes then brought it in for landing. Taking it easy as you say! Progressed from there Good luck, I'm confident you will enjoy your Trojan!!

thehaze

Hey *rider thanks for your input. I was leaning towards the setup you suggested. So it's good to hear that someone has had success with it that way. I'm pretty sure the Trojan will be a great plane once I'm used to it. I did a lot of research on it before I bought it and based on the comments of others it should be the perfect "next step" for someone with my level of experience.

Now I just need to wait for some good weather..... Perhaps in about 2 months...

*rider

Hello again thehaze,

Agreed this is a great 2nd. / 3rd. plane. It's excellent that you've got aileron experience with that e-starter! You will do great! Before too long you will be asking us about upgrades lol hope you get good weather ASAP, and let us know when you maiden

pburt1975

Does the T-28 still have singing servo's? On ours there was 1 of the digital servos used to make the loudest noise. Even with the canopy on and the plane 50' up, it could still be heard. I was told the T-28 needs a Ubec inline because the ESC in them could not handle 3 digital servos, which is why the one was screaming.
If you get plugged up and have a similar issue, you may want to get a ubec so you dont loose radio signal when all the servos have to move.

thehaze

I read about those problems. It was apparently an issue for 1st gen planes with the 25A ESC. Mine came with a 30A ESC and I haven't noticed any of the complaints that others were having. Hopefully I won't need to worry about that issue...

AEAJR

I just looked at the manual for the PNP and you are right, there is NOTHING there about control throw recommendations. That is pretty stupid of ParkZone.

I would recommend you send them an e-mail and ask what the control throws should be in inches or MM.

productsupport@horizonhobby.com

benovisoff

Yeah, I just got my T-28 about a month ago, meant for it to be my second plane, but was my 5th. It is great! It flies like a trainer, and is very easy and not squirrelly at all! I am already now running the aluminium mount, and a 36 amp esc, for the power 10 I will be getting for it.