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Old 08-11-2017, 03:35 AM   #1
Doug 14
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Default T-28 motor upgrades

I really didn't want to start a new thread on this , but unfortunately the search option isn't working for me (using my phone),I push search and it loads briefly but doesn't load my keyboard , most times i find a thread then add my questions to an existing topic . I searched 10 pages in but only found 1 t28 thread ,
to avoid tearing apart my plane and hacking / customizing things to make it fit ,
I decided to just ask .
1 will this BL10 1250kv / 40amp esc combo ( out of A 1st gen sukhoi 29mm) fit and function in this plane without causing any negative effects?
2 . if so will I need to find the same size prop (as current T28 ) or use the much bigger prop that was on the sukhoi 29mm?
3. with this combo I will be using my drone packs 1800 4s 45c, will that be too much for this plane to handle?
Thanks in advance



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Old 08-11-2017, 04:38 AM   #2
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Well, you haven't stated which brand of T-28 you have......take a peak at this thread......:

http://www.wattflyer.com/forums/show...6&highlight=28

It will also reference other threads related to T-28 mods and conversions.
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Old 08-11-2017, 12:34 PM   #3
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thanks, it's the pz t28 1.2 pnp no retract
I didn't realize there was so many Trojans.
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Old 08-11-2017, 12:44 PM   #4
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Originally Posted by pizzano View Post
Well, you haven't stated which brand of T-28 you have......take a peak at this thread......:

http://www.wattflyer.com/forums/show...6&highlight=28

It will also reference other threads related to T-28 mods and conversions.
thanks for the link , I will go through all 53 pages on that thread then delete this one . just in case someone comes across this thread with any direct reasons why I shouldn't use this combo ,
I see a lot of reference to " power up motors? and 50amp esc" so there might be a reason this wont work
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Old 08-12-2017, 02:07 AM   #5
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I'm 10 pages into that T28 thread , learned a lot already about props and mount issues, still haven't come across anyone using the combo I'm thinking about trying , but I'm pretty sure the issue will be the weak motor mount , thank you again for the Link to that thread it's been very helpful
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Old 08-12-2017, 02:38 AM   #6
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The motor mount is the weak point for sure.
I have a power up 15 in mine and it is awesome.
Email heads up hobby. Tell Jesse what you want to do and he will tell you what you need. They have the aluminum motor mounts that you will need.
I suggest just spending the 26 bucks and going 15 and 4s batteries. Really wakes the plane up. Absolutely unlimited vertical

My biggest fear is that when I die my wife will sell my planes for what I told her I paid for them
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Old 08-12-2017, 02:41 AM   #7
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how does the power up 10 or 15 compare to my eflite bl10
1250kv?
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Old 08-12-2017, 04:56 AM   #8
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The 10 is probably very similar, the 15 will have more power and work with 4s.

https://headsuphobby-com.3dcartstore...or_p_1599.html

My biggest fear is that when I die my wife will sell my planes for what I told her I paid for them
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Old 08-12-2017, 05:00 AM   #9
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I don't think o would waste my time on a 10 motor. The 15 on 4s with a 10" prop is perfect for this plane.

My biggest fear is that when I die my wife will sell my planes for what I told her I paid for them
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Old 08-12-2017, 07:46 AM   #10
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ok cool thanks , the esc said 3-6s so I assumed it would be fine, that's the answer I was looking for .
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Old 08-12-2017, 06:33 PM   #11
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I was bored this morning so I pulled off the cowl , yanked out the motor and slapped this is, if the wires didn't match and the prop shaft wasn't the same I would have aborted , but it all fit together perfectly so I gave it a try, right away I could feel a difference between the 2 motors , using the same prop it worked out good, did notice a shorter flight time but I was also flying a lot faster . I stuck to my 3s 45c packs and didnt notice any flight difference.no broken motor mount ,
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Old 08-12-2017, 07:05 PM   #12
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Old 08-13-2017, 04:28 PM   #13
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Want to take walk on the wild side?

A few of us have souped up our T-28's the Powerup 25. Add a 50-60 amp esc and run on 4S pack. Also, get the motor mount from heads up.

She's a rocket ship. Need to beef up the airframe with some extra Cf.

Hawk
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Old 08-13-2017, 04:43 PM   #14
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I might go that route, I put the stock motor in today and filmed some flying with my go pro mounted on the cowl , needless to say it was underpowered and a bit disappointing, I'm going to thro back in the eflite motor this time with the 40amp esc and try that for a while until I get the new motor mount , then it's 4s for sure. I was pretty happy with just the bigger motor but I'm sure I will want more soon enough. I'm picking up a second used T28 today
or this week and I think it has the aluminum mount already so that might be my test plane for mods
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Old 08-13-2017, 06:11 PM   #15
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https://youtu.be/0c0m-TbQDzA
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Old 08-17-2017, 02:51 PM   #16
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4s is where it starts to get fun. Enjoy

My biggest fear is that when I die my wife will sell my planes for what I told her I paid for them
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Old 08-17-2017, 07:22 PM   #17
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Oh yeah !

My thinking is if you go with the Powerup 15 ( which is fine), the Powerup 25 is not much more and you can grow into it. We push the envelope- LOL. " Go faster and do more damage!" is my motto. Chuckle

I hand launch mine and I basically just release her versus tossing her.

Do get the Headsup metal motor mount though as Vic recommended. I love that shop for this kind of stuff. I typically use a 50-60 amp esc. Your 1800mah 4S pack is fine in that it will work fine but won't give you much flight time. Look at going to 4S 2600-3300mah 35C. Here's what I am using: https://rcjetwerx.com/product/4s-3300-35c/ Andy is a great guy and will do you right.

Love the RT's. Use them in all my edf's . I also use CHL's, Zippy's etc. but the RT's have proven to be the best quality for the buck. At least for me. Compare weights with others and you'll see why.

Squawking 1200 ,

Hawk
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Old Yesterday, 03:40 AM   #18
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I was really surprised how short my flight time was , I had to fly pretty slow to squeeze 5min out of it , I don't run my packs lower then 3.70 so i practiced so slower lower flights today , the weather is going to suck here tomorrow so my 8 day in row flight pattern is going to end today , learning progresses so fast when you fly everyday
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Old Yesterday, 05:26 AM   #19
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It's because of the low mah 4S. Need more gas in the tank.
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