butlern

My Feedback: (15)

I had the pleasure of seeing Boyd's finished (nearly finished) T-28 today.... WOW! Boyd did an amazing job with this kit. Tons of detail, beautiful finish. We worked to get the motor tuned and adjusted, but ran out of time so it didn't fly today. But it's very close and I know it's going to fly great.

Awesome job, Boyd!!

Some pictures from today:

Dean rcu

My Feedback: (5)

Excellent Job replicating the T-28 Boyd it should be a great flyer. Dean

butlern

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One more photo!

Boyd, tell us about the hat! From your days in the Navy, huh?

YAT-28E

Fantastic Job!! Is it me or does it look as if the nose is down giving the wing a negative AOA? I had my YAT-28E at 0* on the ground and it shot up upon take off but stuck the landings. I put the nose a little higher and takeoffs were much more normal....
Maybe its the photos giving a optical illusion..

butlern

My Feedback: (15)

I think part of the illusion of the nose-down attitude relates to the uneven ground in the pits at our field. Nose wheel might just be sitting in a slight depression. If it's sitting like that on concrete, then maybe Boyd can shim the front gear to avoid those "pop up" take offs.

maser

Noah,

Thanks for the posts. I would have gotten around to it sooner or later.

Dean,

Thanks for the compliment. Mine came in at 26 lbs. I have a Fuji 50 on it. What did yours weigh when you finished. Also what engine size did you use and how well does it fly. WarbirdRCER is concered about the power and weight. Thanks for your thoughts.

Yat,

I'll make sure I watch for that.

Dean rcu

My Feedback: (5)

Hi Boyd, I have not balanced and weight the T-28 yet. I am using an Evolution engine and have not done much work on it as my wife has gone through a series of medical problems the last three months. I think you have more power than is needed. A 32cc engine would be adequate I believe.
Dean

WARBIRDRCER

My Feedback: (22)

Updateon Maser’s project.

Sunday afternoon we tuned the engine to peek performance. The 20x10 prop turned a disappointing 6600 RPM static and was a little much for the engine. We installed a 20x8 and increased RPM by 1K bringing us to a max static RPM of 7600. Still far below the advertised 9K + RPM, Oh I forgot; FUGI stated that test was conducted with a 22x10 on a 50 degree day with a low density altitude.

Anyway,I was able to tune for hand propping, so we stopped and did some taxi test. Also we are testing the engine on his glassed P-51 which weights in at 22 pounds. This is 4 pounds less than the T-28, not to mention less drag.

All calculations I could come up with state this engine and prop combinations are good for about 16 pounds of thrust.

Today, Monday we test flew the P-51 with the 20x8 prop. The plane ate up almost 500 feet of runway before liftoff, and once airborne it was apparent this engine lacked the thrust needed for flight safety. Boyd did a good job flying the pig back to earth, but I can tell you he is now a true believer in the adage; “It is better to be down here wishing to be up there, rather than being up there wishing to be down here”.

The upgraded engine should be on the way to his house by close of business today,Tuesday Sept. 3.

lkahn4

Boyd,
excellent job, really impressive. I hope mine comes out half as well. It's nice to put a face with the name, love the hat.
was in the Navy for almost 4 years, had a great time on 2 different tenders...gotta love that shore duty
just getting back into the Trojan, working on the ailerons, hope to have them prefit by the weekend so I can do the final sheeting and sanding the LE edges will try and post pix as soon a I get them fit.

hope to meet you guys next year on my drive to Arizona (hopefully) only 177 days to retirement

Larry

lkahn4

Hey guys,
need some insight or pix for the leading edge of the ailerons. The plans show the cut outs for the hinges but I'm having a tough time wrapping my head around what keeps the ailerons from moving side to side.
Dean, sorry to hear about your wife, I hope she's on the mend. Can you please send me your email address so I can send you some awesome rc model emails. Can't wait until I get to AZ so I can get some tutelage.

supposed to be 76 and sunny here this weekend though they haven't given the wind forecast yet.

Larry

lkahn4

Hey guys,
Here are shots of the ailerons... used Deans idea of tubes to align the hinge pin when removing for painting.. still need insight on the cutouts....

lkahn4

Hey Guys,
Deans idea of the tubes to align the aileron hinge pin works great, so easy to remove and realign.
Working on the hinge cutouts and then will move on to aligning everything before running the rest of the wiring.
Hope everyones flying season is going well, the winds are starting to pick up here, hopefully we will be able to fly through November


Larry

redtail

My Feedback: (15)

Aaaaahaaaa, so this is where you have been hiding. Did you use the aileron hinge tube idea on the Avenger also? I used the long wire approach. I've just begun watching this thread with interest since I have a Johnny O 1/5 scale T-28 waiting patiently on the shelf for completion of the Avenger. Great minds do think similar thoughts, we can at least say that. Smile. Larry, you are Noah I wish great things for. Stay well my friends. 177 days to go, lucky you, I have 320 days to go. Chic

warbird-RCU

My Feedback: (261)

Hi Darrel its Donzie would you have a set of retracts for the Byron 1/5 scale T-28 kit? If so I would be interested in some? Also do you still the bigger T28 kit that you purchased a few years ago?

lkahn4

Hey Chic,
Really haven't been doing anything much.
Flew the P-38 last weekend, amazing how much epoxy dries out after 10 years....
Did not use Deans idea for the Avenger, but it seems to be great for the Trojan, I have removed and inserted the long pin 3 or 4 times with almost no problems, we will see once I get the hangers epoxied into the wing though I don't see it as an issue.
Hope to finish sanding the trailing edges of the ailerons today as the wind is not playing nice here.
Hope all is well on your end.

Larry

redtail

My Feedback: (15)

Rivets, all I have to do is read. Silly me. Chic

redtail

My Feedback: (15)

Please advise, what did you or anyone else who used the same technique do, if anything, to the glue to keep some of the glue drops from collapsing the center of the glue drop. Your rivets are impressive. Chic

lkahn4

chic,
If you go back through the Avenger thread (I think) Peter used foil and punched them out with a piece of brass tubing over a piece of foam.
Then again it might have been dean on this thread.... following way too many posts LOL


Larry

maser

Chic,

I used a hypodermic needle and some white elmers glue. Same technique that Noah used. I only had a couple of rivets that did not come out right but you can't tell.

Larry,

Had a succesful flight with the T-28. Averted a disaster, one of the aileron clevis broke. I put a DLE 55 on my airplane and it flys very well.

Boyd

lkahn4

Boyd,
Congrats, glad you got it back in one piece. Do you think the 55 is too much power or just enough?
Winds at the field were pushing 30mph off the water across the runway yesterday, the heli pilots tried but it was even too windy for them.
Working on the ailerons, was hoping to have the totally sanded and installed by yesterday but alas NOT
Chic, there are so many ways to do the rivets I'm sure by the time you get back to the Avenger there will be at least another 2 or 3 ways to do them (smile)
I'm seriously thinking about fiberglass and then flite metal so I won't have to deal with the taping to get nice panel lines.. still have time to decide.


Larry

redtail

My Feedback: (15)

Larry, its just that Boyd's rivets look soooooooo good. I want my rivets to look like his when I grow up (Avenger). Stay well. Chic

butlern

My Feedback: (15)

What, Boyd?!?!?!?

I assumed it was going to be too windy this past weekend! Sorry I missed the maiden flight, but I'm thrilled to hear that it flew well (even on one aileron).

Congratulations!!!

Beautiful work!

Noah

maser

Chic

Thanks for the compliment. It's not that bad once you get going with the rivets.

Larry,

The DLE-55 is not overpowered. I can fly with about 1/2 throttle. I would not take the recommendation on the Platt kit to use the suggested engine size.

Noah,

I'll be out next week-end also. I know your busy at work and is hard for you to get out.

maser

I forgot to tell everyone that the plans call for the nose gear to set low in the nose gear bay. As YAT-28E pointed out this makes the nose point down when all 3 tires are on the ground. I had to shim my nose gear 7/8" to get the proper stance on all 3 tires. This would have made for a potentially bad take-off.

lkahn4

Hey guys,
Here's a couple of shots of the wing, hoping to get the aileron hangers permanently epoxied this week. Still sanding and filling the ailerons to get them to match the flaps..
This is certainly giving me an education as the Avenger was a tad bit easier to understand and execute... servos work well with good throw.
Dean, just want to make sure I understand your post about the nose wheel, You had to shim it so the mount was 7/8" lower than shows on the plans making the nose sit higher than what is shown correct?
Thanks
Larry