HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Sep 29, 2012, 08:31 PM
I just want to go fly!
walter3rd's Avatar
United States, MD, Towson
Joined Aug 2012
2,414 Posts
first things first.. wheres the pic!that would probably work. the different steps under the canopy itself is designed to hold the pack in place during flight. you need to insert whatever battery you are using then look as you close the canopy and figure if the bottom protrusions are going to block the rear of the pack to prevent rearward sliding. i had to open up my battery bay as well but as long as you verify the different size batteries are being held forward and secure anything goes. you want to check cg as well of coarse too. i purchased some wider batteries that required a mod. would have prefered not to but all is well. congradulations on a great flying plane, as long as the previous owner loved her. good luck.
walter3rd is offline Find More Posts by walter3rd
Reply With Quote
Sign up now
to remove ads between posts
Old Sep 29, 2012, 10:16 PM
accel8or
accel8or's Avatar
United States, CA, Los Angeles
Joined Dec 2010
485 Posts
Quote:
Originally Posted by drktkm View Post
What size wheels are you guys using with a 12" prop?
The 3-inch ones that look like bicycle wheels with 5 white spokes.
accel8or is offline Find More Posts by accel8or
RCG Plus Member
Latest blog entry: How people size you up
Reply With Quote
Old Sep 29, 2012, 10:31 PM
accel8or
accel8or's Avatar
United States, CA, Los Angeles
Joined Dec 2010
485 Posts
Quote:
Originally Posted by justinlee1 View Post
I'm loving my T-28 UM as a first aileron plane and am flying patterns, taking off, landing, and doing basic aerobatics pretty well. I fly in medium-sized public parks about the size of two or three baseball fields. These parks seem to be micro-friendly, and the local AMA clubs are a little far away from me.

I would love to know your experiences in upgrading from the UM to the larger bird.

Also, how small of a space can it be flown in compared to the UM?

Thanks for your insight,
Justin
Switching from UM's to parkflyer-sized felt natural to me and a lot easier to see. If you go to the parkflyer-sized (33" to 48" wingspan) planes, you'll need a field the size of 2 soccer fields (football pitch in UK and Europe). You'll have to get used to the longer distances needed for landing; I'd say about 60 feet minimum, compared to 10 feet for an ultramicro.

(For the benefit of those getting started in rc planes: just take in consideration that a bigger plane at flying speed can injure or kill, and can mess up a car pretty bad. One guy hit a car; his auto insurance does not cover rc planes. He had to sell all his stuff to pay the car owner $850 in damages. when he got back to flying, he joined AMA and only flies the good stuff...no cheapie planes. )
accel8or is offline Find More Posts by accel8or
RCG Plus Member
Latest blog entry: How people size you up
Reply With Quote
Old Sep 30, 2012, 01:02 AM
Registered User
Bay Area, California
Joined Dec 2009
62 Posts
Quote:
Originally Posted by walter3rd View Post
first things first.. wheres the pic!that would probably work. the different steps under the canopy itself is designed to hold the pack in place during flight. you need to insert whatever battery you are using then look as you close the canopy and figure if the bottom protrusions are going to block the rear of the pack to prevent rearward sliding. i had to open up my battery bay as well but as long as you verify the different size batteries are being held forward and secure anything goes. you want to check cg as well of coarse too. i purchased some wider batteries that required a mod. would have prefered not to but all is well. congradulations on a great flying plane, as long as the previous owner loved her. good luck.
Well, I will see what I can do about the pic. I don't have a smart phone, nor do I have a camera, so it won't be the best picture in the world.

Regarding the steps in the canopy, well those may have been cut out; there is quite a bit of room under the bridge. Need to do some fishing and see if the nub on the bottom of the canopy was cut because it definitely is nowhere near touching the battery. As it is now, there is one rectangle on the bottom of about 1/2" thickness (eyeballed it) and nothing else.

I goofed on the maiden. Total brainfart and didn't reverse the ailerons to work the right way. It wasn't a big deal, I brought the plane down, but landed in some bumpy grass and the nose wheel mount broke. Looks like the prior owner may have broke it at one point too because it looks like it was glued in place. I saw him taxi the plane today before buying so I know it was at least strong enough for concrete. Pretty certain this part http://www.ebay.com/itm/Parkzone-Nos...item1e71297fc2 didn't break. I think whatever holds that piece is what let go. I haven't been able to take a real close look at it yet to confirm though. So what does hold that part in place, and what would I be looking at for a replacement? Guess I should find the manual online...
Wildjones is offline Find More Posts by Wildjones
Reply With Quote
Old Sep 30, 2012, 04:16 AM
Dirtnap Certified
Flyindude's Avatar
Joined Aug 2012
194 Posts
That part which broke is part of the firewall and isnt a service part. You would have to buy a complete fuse. See my post around page 1683 on firewall reinforcement. Icecream sticks, a Dremel, hobby knife and some cf tube are your friends...
Flyindude is online now Find More Posts by Flyindude
Reply With Quote
Old Sep 30, 2012, 11:11 AM
Registered User
Bay Area, California
Joined Dec 2009
62 Posts
Quote:
Originally Posted by Flyindude View Post
That part which broke is part of the firewall and isnt a service part. You would have to buy a complete fuse. See my post around page 1683 on firewall reinforcement. Icecream sticks, a Dremel, hobby knife and some cf tube are your friends...
Yeah, ended up checking things out after I made my post last night. Definitely was the firewall... I will likely need to redo my repair. I tried getting away with just GG, but I dunno how well or for how long that will hold up.
Wildjones is offline Find More Posts by Wildjones
Reply With Quote
Old Sep 30, 2012, 01:30 PM
RvE
Registered User
Canada, ON, Toronto
Joined May 2012
134 Posts
Landing gear and engine cowl aesthetic improvements

Thank you "rgwilson" for the tip on the Robarts Landing Gear Strut Covers, and "flyindude" for the paint pen tip for detailing the engine cowl. I added these enhancements to my son's PZ T28D and I am very pleased with the outcome.

Here are some pics that show the front cowl and installed and painted landing gear strut covers. Note - I purposely installed the "elbows" on the strut covers pointed rearwards to avoid getting caught up in grass runways (we fly on soccer fields), even though the real plane has these pointing forwards. The front strut is correct with the rear facing elbow.

The Robarts LG strut covers are a bit expensive (about $15 from most hobby shops), but they are a very well designed and well made product. They are a "snap and screw on" product for easy future removal in case of LG replacement, and are made of very strong but flexible plastic.

For those that are interested, I will post some pics and a bit of an explanation on how I installed these on this plane under the "Parkzone T-28 Trojan Modifications" Thread.

Cheers RvE
RvE is offline Find More Posts by RvE
Last edited by RvE; Sep 30, 2012 at 01:50 PM.
Reply With Quote
Old Sep 30, 2012, 04:56 PM
ride hard and fly low
H.D.'s Avatar
Joined Aug 2011
585 Posts
I love flying my T28 in a KE, ran 3/4 pack (2100) in KE at the field yesterday.
H.D. is offline Find More Posts by H.D.
Reply With Quote
Old Sep 30, 2012, 07:13 PM
Dirtnap Certified
Flyindude's Avatar
Joined Aug 2012
194 Posts
RvE - looking good. I'm surprised you aren't running bigger wheels if you are using a grass field. Refer my mods 10 or so pages back. I have also used the silver pen on the engine sides, I assume these are exhaust pipes or similar (sides of the fuse). Cheers.
Flyindude is online now Find More Posts by Flyindude
Reply With Quote
Old Sep 30, 2012, 08:17 PM
Registered User
Bay Area, California
Joined Dec 2009
62 Posts
Just got back from my re-maiden . GG'd front wheel held up. Definitely need to do something about the battery situation. I felt like the plane was handling funny in the air but tried to finish the pack off, thinking it was due to the rudder being out of whack (it has a clear packing tape hinge on it right now, does the rudder normally fall off??). Finished off the flight with a nice scale landing and taxied back to me. Found the 1800mah pack towards the back of the fuse by the RX. Niceeee.
Wildjones is offline Find More Posts by Wildjones
Reply With Quote
Old Sep 30, 2012, 08:26 PM
Dirtnap Certified
Flyindude's Avatar
Joined Aug 2012
194 Posts
Quote:
Originally Posted by Wildjones View Post
Yeah, ended up checking things out after I made my post last night. Definitely was the firewall... I will likely need to redo my repair. I tried getting away with just GG, but I dunno how well or for how long that will hold up.
Wildy
The next moderately hard landing will break it again I suspect. In my experience, glue alone (even when I used CA and some baking powder to build up the join) broke soon after the repair. I have been doing touch and goes and had several weekends of flying now with the most recent repairs and all's well so far.

Note to Parkzone if you are reading this, please make the firewall a bit stronger and/or make it a service part so we can repair this more easily in future. We would be grateful.
Flyindude is online now Find More Posts by Flyindude
Reply With Quote
Old Sep 30, 2012, 08:39 PM
I just want to go fly!
walter3rd's Avatar
United States, MD, Towson
Joined Aug 2012
2,414 Posts
just logged up to my first dozen flights on the t28 today. way more wind than i would have liked. she was really being shoved around good up there. at least it stayed blowing one direction so it really slowed her up for landing. mother natures flaps.
walter3rd is offline Find More Posts by walter3rd
Reply With Quote
Old Oct 01, 2012, 02:49 PM
You're killin' me Smalls
BrownEyedFool's Avatar
United States, NJ, Hillsborough Township
Joined Sep 2011
1,605 Posts
Didn't pull enough up elevator as I was coming in for a landing so I munched the nosegear through the firewall for the second time. The basswood reinforcement piece I had previously installed disappeared, I'll have to make a new one and use something stronger.

Ordered some replacement pushrods and a nosewheel, the existing pushrod is sort of taco'ed.

So I spent too much time away from this bird (nicknamed Why So Serious since her earlier repairs make her look like her throat was slit) and lost all touch when flying her.

Once I finish repairs, I think I'll move the bind from my Dx6i over to my DX7s, which will be a good time to revise throws and expo, I've got too much in the ailerons right now (50 I think) it makes it feel less responsive. What are typical low and high rates and expo you folks are using?

I'm at work so I can't check the rest of my rates.
BrownEyedFool is online now Find More Posts by BrownEyedFool
Reply With Quote
Old Oct 01, 2012, 03:25 PM
Registered User
United States, CA, Oceanside
Joined Apr 2011
4,955 Posts
I use 60% aileron and 75% elevator with no expo. Mine flies like a dream that way.
chucksolo69 is offline Find More Posts by chucksolo69
Reply With Quote
Old Oct 01, 2012, 07:01 PM
2 Fast 2 Low & 2 Loud
scootrb4's Avatar
United States, CA, Winchester
Joined Nov 2011
3,205 Posts
Lots of expo can be treacherous.

Expo makes the low end of the stick movement have a reduced or mushy effect.
The end point doesn't change.
The result of too much expo is a stick that is mushy at first and then quick to respond at the end of the throw.
Once you learn to control your thumbs will want the plane to react to your movements.
After 11 months of flying I have reduced the amount of expo I use to 15% - 20%.
scootrb4 is offline Find More Posts by scootrb4
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Article ParkZone T-28 Trojan RTF Review Jim Walker Electric Warbirds 879 Aug 11, 2014 09:08 PM
Official Parkzone P-51 Owners Thread - Part 2 monitor Parkflyers 2602 Jun 15, 2014 04:51 PM
Discussion Parkzone T-28 Trojan Thread Edge767 Parkflyers 6527 Jun 04, 2008 05:29 AM
Sold Parkzone T-28 Trojan, 480 960kv Motors (2) Joe in Dublin Aircraft - Electric - Power Systems (FS/W) 4 Jan 17, 2008 01:34 PM
Wanted Parkzone T-28 Trojan webejpn01 Aircraft - Electric - Airplanes (FS/W) 4 Oct 25, 2007 02:48 PM