Modified FMS 1700mm Super Cub

[@rogerhartzell544]

Just wanted to give a big shout out and say thank you Alex for answering all of my questions and guide me along the way and completing my plane. 👍everything turned out great. I can’t wait to take it to the park tomorrow and fly it. I did not go through the nose to put my ESC in. I decided to go underneath of the balsa wood where the battery sits, then put a new piece of balsa over top of the hole with battery straps. CG seems to be perfect.! 👍 just wanted to say how much I appreciate all the help and for being patient with me and answering all my questions.lol thanks again, Alex you’re the man!

[@johneastman1905]

Looks to be a nice large flying field, with a great big audience of cows watching & chewing.

[@ashtonhylton5709]

Awesome build. I'm looking into this plane, but like you, I want the extra power for punch outs. I'm also not a fan of the stock tires. Would you be willing to provide links for all the upgrades you did?

[@AJHewson1]

The tyres are from an old Durafly Tundra. The motor and ESC I already had lying around

[@glennlingard7851]

I’m a farmer and do actually fly rc planes but can’t help looking at them cattle in the background being nosy as usual 👍

[@rogerhartzell544]

I’m so happy with the results of my plane. I wish I could send you pictures.? I am running the 2700 spectrum battery in it now. Do you think I would be able to run a 5000? Be too much weight? I have plenty of room to move battery back. If needed. what is the biggest battery that you have run in your set up? I thought maybe even a 4000? I am getting a little over 6 min of flight time with the 2700. Do you think I could at least get away with a 4000 without losing my CG? Please let me know when your thoughts are thanks, Alex..

[@rogerhartzell544]

Could I use this ESC instead of the castle creations talon 90 amp? I found this speed controller on Hobby Horizon, but it’s an 85 amp. It does have the yellow reverse thrust wire. It’s called the Skyhawk 85A from Hobby Horizon ..Any information you can give me I would appreciate it so very much. The reverse thrust is definitely not a dealbreaker I can live without it, but I would like to have it. Ps it will not allow me to upload a picture of it. It’s an 85 amp 3S.-8s esc but it does have the other yellow wire for thrust reverse

[@AJHewson1]

@@rogerhartzell544 I don’t see why that wouldn’t work,

[@rogerhartzell544]

Could you please tell me how much flight time you’re getting out of it? I realize you’re running it pretty hard but at a normal flying pace, but would you gess . just thought maybe that 90 amp would really draw fast on a 4S battery.. I know it’s gonna have a lot more speed and power, with th upgrade but it’s still a 4s battery would I at least get more than five minutes fly time?

[@AJHewson1]

@@rogerhartzell544 I do get more than 5min flight time

[@rogerhartzell544]

Good morning Alex. I just wanted to answer my own question.lol I just got my propellers today in the mail and I see now that it has a thinner hub in the original propeller so now I see why you can use the original backplate without grinding it thinner.🤦🏻‍♂️🤦🏻‍♂️ Only thing I’m waiting for now is. my ESC is there a trick to finding out which wires or which on the motor can I just test them? I’m sure ones forward ones reverse and one’s negative.?

[@AJHewson1]

@@rogerhartzell544 just swap two motor wires if it runs the wrong way

[@rogerhartzell544]

I am completely lost on where to mount my castle talon 90 esc? did you have to cut away the Balsawood underneath the battery tray? I’m completely lost. Alex I wanted to fly it today, but I do not know where you mounted yours. Did you have to take out the battery floor tray is yours mounted under the battery I don’t understand where you put it at in the plane. It will not go in from the front there’s not enough room in the Styrofoam.? any information you can give me I would so kindly appreciate it thank you Alex

[@AJHewson1]

@@rogerhartzell544 www.rcgroups.com/forums/showthread.php?3132109-FMS-1700mm%2867-%29-Piper-PA-18-Super-Cub/page82

[@rogerhartzell544]

Would you please answer a question for me? I got my castle Talon 90 esc today. Where did you mount it at in the plain? It’s so much larger than the original 45A esc would you please be so kind to tell me where exactly you mounted yours at? It will not fit in the bottom of the fuselage like the old one there’s not enough room? please help me out.

[@AJHewson1]

@@rogerhartzell544 I removed the plastic mounting casing, and left the green heat sink and removed out some foam to make it fit.

[@rogerhartzell544]

I’m getting ready to purchase this exact ESC but I noticed it does not have a small yellow wire for thrust reverse. Is it capable of having thrust reverse? Do I just snip the yellow wire and plug it into my channel 5 on my receiver?

[@AJHewson1]

@@rogerhartzell544 No this ESC doesn’t have thrust reverse

[@russc3288]

Did you have to change anything to get the new motor to fit the firewall ? And did the prop adapter that came with the new motor have enough shaft length to get out passed the cowl ? One thing I don't like about this stock is the noisy motor. Hate to dump another 160 in this with esc and motor but if it gives power and noise reduction it might be worth it. Thx for your vid. Thnks

[@AJHewson1]

Nope, I didn’t have to change the firewall, this one bolted straight in. I used the prop adaptor that came with the new motor and it was perfect

[@russc3288]

@@AJHewson1 Thx AJ. How did you utilize the stock back plate that comes keyed for the stock adapter ? Thx again

[@AJHewson1]

@@russc3288 I just drilled it out to fit

[@russc3288]

@@AJHewson1 so the keyed backplate protrusion just rests up against the prop adapter ? Locknut pressure is all that secures the prop I guess.

[@AJHewson1]

@@russc3288 yup, same as most electric set ups

[@rogerhartzell544]

How much rudder and Aliron mix did you put in yours?

[@AJHewson1]

None. I use both thumbs 😜😁

[@rogerhartzell544]

I have a very important question. I was hoping you could answer for me. I put5” foamy tires on my PA 18. Super cub 1700. Just like you did, but I did not change the motor out still running on stock motor but now my CG is so so tail heavy now because of the lightweight tires. I cannot get the nose to come close to being level so I cannot fly it. how did you get your CG?with those light foam wheels is it because the new motor is heavier? I’m not sure what I should do.?I really like the lighter tires but there’s no way I can fly it with the tail being so heavy I have the spectrum 2700 4s battery all the way forward and it is still very tail heavy. Is that motor heavier than stock? Or did you have to put some kind of weight in the nose any information you could help me I would so kindly appreciate it.

[@AJHewson1]

@@rogerhartzell544 my motor and ESC will be slightly heavier from stock and that’s likely why. I run my battery in the middle of the battery area, not all the way forward. It’s a 2800mah 4s

[@rogerhartzell544]

@@AJHewson1 I found the motor in the ESC. I was just wanted to verify exactly what size prop you are running on that I know you told me before, but I just want to verify the exact size prop for that motor. Thank you so much.

[@AJHewson1]

@@rogerhartzell544 13x6.5 apc electric

[@rogerhartzell544]

@@AJHewson1 thank you so much AJ and I also weighed my stock motor versus the new motor. I’m going to get there is a 41 g difference so that is exactly why am tail heavy. After I make the transformation of the plane with the new motor ESC in prop do you think I’ll least get around eight minutes of flight time but that set up with just normal flying? I know in your video you were flying it pretty aggressive. Just wanted to have an expectation of the flight times I will be getting I will be running a spectrum 2700 4s smart battery.

[@rogerhartzell544]

Also, I wanted to go with electro line prop because of the white lettering and you mentioned a 13 x 8 electro line prop. Could I go that route ? or is it best to just stay with the 13 x 6.5 APC prop? I am so sorry for all of the questions, but I’m so close to getting this stuff ordered so any info you can help me I would so kindly appreciate. I don’t want to order the wrong prop. Could you tell me the hub bore size of the center hole of prop?

[@EngineNoise305]

Would this work on the stock motor if you put the prop and esc mods on? Or would it just not last long ?

[@AJHewson1]

The motor was getting hot with stock setup. I played around with other props and found nothing that had a big improvement before upgrading the entire power system. So to answer your question, it would not last long and likely catch on fire

[@EngineNoise305]

@@AJHewson1 Thanks. I guess the stock motor is pretty low quality? Mine has a 3541-750Kv motor, and i think your upgrade was to a 3520-900? I would think those specs would be close enough, but i guess not.

[@AJHewson1]

@@EngineNoise305 one thing you’ll find is that the manufacturers don’t use the same sizing methods. So the 3541 size it the outside of the motor for this case, the 3520 is the commutator or the bit inside the motor that the windings are wrapped around. The outside of the 3520 motor is actually 4245 in the stock motor style sizing

[@EngineNoise305]

@@AJHewson1 lol great so they do the same thing they do with battery specs….wish they would just post the watt rating

[@looneytunes47]

Grand Tundra was by Avios and the smaller Tundra,s were by Durafly.

[@KennethLWagner-yw9ko]

foam wheels ? Thays gotta suck !

[@MartinDuLude-jo2ez]

Ahhh... the stock version can do just the same thing. No mod here I can see.

[@AJHewson1]

It’s got 700g more thrust, hardly the same

[@ziom00ziom]

Great video. Nice that you show modifications

[@jonowillmer]

Wow!!! It sounds fantastic, great skills, thanks for the efforts you put in to making this video enjoyable.

[@jacksampson7711]

Very nice flying. What is you wind speed on this day? I see the sock nearly vertical.

[@AJHewson1]

Thanks! It was gusty wind of 3-10kts

[@rogerhartzell544]

Took mine to the park this morning it flew excellent. Only issue was trying to do a knife edge. Thought I would put my servo arm linkage in the last outside hole. I did that with my Rudder and Aileron.. could I bother you and ask you if you have your Rutter linkage on the outer outside hole on the servo and also which hole you are using for the Aileron?. servo throws are all set at 100%

[@rogerhartzell544]

What size prop are you running on it? I could not make the voice out of what you said and also could you tell me what brand prop that is? What size battery I know you said 4S but what size?

[@rogerhartzell544]

Is that the original nosecone And nosecone plate that came with the plane or did you have to change it? Also, could you tell me what modifications you had to do too it? Did you have to shave down the backside of it where the keyed part is of the nosecone plate?

[@ToastyProductions.]

I posted a video with mine on 6s then i switched the motor to a power 25 hovers and pulls out easy on 4s 13x7 prop using xfly 5 inch bouncy wheels super light compared to duburos

[@ToastyProductions.]

Great flying good video I usually use mine for smoke bombs fpv and float flying

[@rogerhartzell544]

I have tried to rewind this video like 10 times now and I cannot make out what size prop that is The size of that prop is something over six if you could so kindly please tell me what size that prop is I would appreciate it.

[@AJHewson1]

13x8 electro line, but a 13x6 apc pulls the same current

[@rogerhartzell544]

What are the size dimensions on those wheels as far as inches go?

[@AJHewson1]

I think about 5”

[@rogerhartzell544]

What is the flight time with that set up?

[@AJHewson1]

Depends heavily on throttle usage

[@letvalentino100]

Отличный самолёт (авиамодель), классный пилотаж, хорошая видеосъёмка, спасибо! Успехов Вам в таком хорошем увлечении (хобби)! Привет из России!

[@rogerhartzell544]

Could you please tell me what size prop you are using? I see that it’s a electro line but I could not make out what you said. I would love to build mine exactly the way you did yours. sounded like you said 13 x 6.?

[@AJHewson1]

Hi, sorry, it’s a 13x8

[@rogerhartzell544]

Thank you so much for getting back to me. I will be putting a spectrum.AR8360T receiver in mine. With smart 2700 30c 4S Battery which ESC From spectrum would you recommend me to get or can I run the? Castle Taylor, 90. Esc? Sorry for all the questions but I’m still learning. I just got the plane and I want a bit more of power I found that. Extreme flight T3520 motor $85 I was going to order that motor, but wasn’t sure about the ESC do I need to keep it all spectrum? And also is the battery I’m using going to be OK with that motor.? so sorry for all the questions but I absolutely love that plan you built and want to make mine just like it.❤️

[@AJHewson1]

@@rogerhartzell544 I haven’t run that motor with anything other than the castle Talon 90, so I’d do some googling as to its use with other ESC. The battery will be fine

[@rogerhartzell544]

@@AJHewson1 thank you so much for getting back to me. I think I’m just going to keep everything the same as what you have. I’ll probably just buy a (Castle Talon 90 ESC)..sorry for being a pain in the ass with all the questions last questions but could you please tell me what your Rudder and Aileron mix is?

[@1101nz]

Hi, do you have a link to the bomb drop mech. Cheers

[@AJHewson1]

a.aliexpress.com/_mOY0e6C