Can I use Y547 on the Zippkits JAE 21 rigger?

[Brushless55]

I have to try the y547 on my p mono.....I gota stop reading these threads now its back out to test and all that stuff when I was so happy with it on a m445 :)

that should be an interesting test

[ron1950]

59 is not bad faster then anything I have for sure

[martin]

You will probably gain a bit more speed if you detongue the y547.

[Fluid]

This morning I put the GPS in my JAE21 with Castle 1415/1Y on 4S1P. I had been using an ABC 1816 but the amps were pretty high, averaging 140. Put on a detongued and cupped H-7 and saw this after 7 laps plus mill (using just 3000 mAh).

JAE H-7a.jpg

[tlandauer]

This morning I put the GPS in my JAE21 with Castle 1415/1Y on 4S1P. I had been using an ABC 1816 but the amps were pretty high, averaging 140. Put on a detongued and cupped H-7 and saw this after 7 laps plus mill (using just 3000 mAh).

[ATTACH=CONFIG]117062[/ATTACH]

it's the difference between rank amateur and professional.
I have contacted Chris for a H7, mine was balanced but I don't think it is thin enough and certainly not tweaked. I would be happy if I can crack the 60 m/h threshold.
Just curious: what is the diameter of the shaft on your 1415?
Thanks for sharing your knowledge on this thread!

[Doug Smock]

Nice work Jay!
Rod says to bring the prop to the boat and that's what you do with the H7.

Had you done anything special to the 1816?

[Fluid]

My Castle 1415/1Y has a 5mm shaft and was run at 15* timing. The 1816 had been slightly detongued and the lift reduced a little. I was very surprised at the performance difference, both have about the same root pitch but the H-7 is clearly more efficient on this hull.


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[tlandauer]

Thank you. I asked because the 1415 that I have seen are mostly equipped with 1/8" shaft, didn't think I could them use in a boat. If, and only if I were to change to a slightly higher kv motor, would a TPPower 3640 6D work? (3670/2460kv on 4s, Seaking 120a ESC)
Thanks for the info. regarding the props!

[Fluid]

You'd probably need to go to a smaller prop with the higher Kv motor. And a 120 amp ESC will probably not be enough unless you do. My setup averages about 100 amps but it is a more efficient lower Kv motor. It will be easier to over amp unless you use a data logger.



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[tlandauer]

Thank you SO much!

[martin]

I would deff not use a 120a esc on that motor.

[tlandauer]

I agree, well, I need to make the best of my present set up first. I was just thinking out loud. The T180 is a good candidate were it not for the orientation of the cooling nipples, Properchopper and a few others had fitted 90* fittings, that would be the way to go when time comes!
Cheers!

[ALIENALESSIO]

Hi, I am using on my JAE21 the M440 prop and it's the best prop for my racing setup.
Racing it on 5S lipo and 1900kv motor with a top speed of 105km/h and average amp dare of 55Amp and peak of 75A.
I tried sevral props on 5S and 4S setup but the M440 is the best for our racing regulations in Italy since we have to race 5 minutes in Oval track and the more laps you do you win.
Only limitation is bare lipo weight must not exceed 560gr for hydro2 category up to max 6S
I raced 4S last year but new set up is great.
If any wants to see my boat race on Youtube go to my channel Alienalessio and see Margonara, its a two boat race and see my Red JAE always way ahead.
I have slightley modified the set up of the JAE and obtained a higher speed and lower amp draw

[tlandauer]

Hi, I am using on my JAE21 the M440 prop and it's the best prop for my racing setup.
Racing it on 5S lipo and 1900kv motor with a top speed of 105km/h and average amp dare of 55Amp and peak of 75A.
I tried sevral props on 5S and 4S setup but the M440 is the best for our racing regulations in Italy since we have to race 5 minutes in Oval track and the more laps you do you win.
Only limitation is bare lipo weight must not exceed 560gr for hydro2 category up to max 6S
I raced 4S last year but new set up is great.
If any wants to see my boat race on Youtube go to my channel Alienalessio and see Margonara, its a two boat race and see my Red JAE always way ahead.
I have slightley modified the set up of the JAE and obtained a higher speed and lower amp draw

Thanks for the input! I am too cheap to invest anything other than 4s batteries at the moment. It's good to know some other set ups for the JAE 21.

[darryl whitman]

hi guys, my first JAE 21, did some mods to in the build , I moved the rear carbon tube back to the 3rd screw on the turn fin , to stable the rear of the sponson, also from rear to front, the lay out goes motor esc battery.
motor= turnigy XK3674-1650kv
esc = 120A seaking V2
batts = 5s 5000mah 40c
ok here's the prop abc 1914 4.5 T.E. cup. 3.14 C.O.B. pitch 47.47mm Dia.
she runs, gotta watch the heat, also need to use a 1/4 " flex shaft, the 3/16" flex broke don't know y.
with this mod all my wires are less than 3" long,