Delta Force 33 won't get up on plane

[stadiumyamaha]

I use automotive bulbs that have tabs you can use alligator clips on.

[rol243]

you can purchase good dischargers / battery tester units for around $10 that also balance each cell whilst discharging the pack to storage levels of your selected voltage level.

[Norwest]

Delete please.!

[gearhd48]

Why not? your body temp is 98.6! LOL

[CraigP]

Delete please.!

Delete what?! Why?!

[Norwest]

//////

[Stillwet]

Delete what?! Why?!

i'm thinking Alec Baldwin HA!
gee CraigP i just stumbled upon this and seems you asked the wrong question (Why?) when i saw the second delete i was puttn' a bald spot on my head scratchn'
Well Norwest answer the question, nobody's here to fool you.

[gearhd48]

I hope you got this fixed, but if not it is your batteries! I just had the same thing happen with my SW26, put a new battery in it and it flew.

[Nick1979]

I know this is an old thread, however I am running into the same issue. Newly built Pirate 35, it won't go on plane. It is very slow and low RPMs. How exactly did you resolve your problem?

[Fluid]

Nick we aren’t mind readers, please give us some information about your build:

- exactly what motor?
- exactly what batteries and how they are wire?
- exactly what ESC?
- exactly what prop?
- what drive, stinger or strut?
- a photo of the transom from the side and back would help.

With more information we can help.



.

[Nick1979]

The problem turned out to be the dummy who set up the boat. He forgot to calibrate the ESC to the transmitter, then ran the boat and got on here to ask why it didn't work. Thanks to all who helped.

Nick we aren?t mind readers, please give us some information about your build:

- exactly what motor?
- exactly what batteries and how they are wire?
- exactly what ESC?
- exactly what prop?
- what drive, stinger or strut?
- a photo of the transom from the side and back would help.

With more information we can help.



.

Sorry, I didn't mean to steal this thread. Motor is Leopard 4082 1450KV, Seaking 180A ESC, 47mm Graupner prop , 3/16" flex shaft, no teflon in a 1/4 tube with a stinger all running on 2x 3S 5000Mah packs in series. It should give the motor around 32,000 unloaded RPMs. I will post a photos as well.

[Fluid]

Your build looks very good. If the packs are fully charged then the issue is most likely in the ESC.

* First, disable the LVC, these ESCs are notorious for LVC failures - just be sure to time your runs.
* Is the ESC calibrated to the transmitter?
* Are the throttle endpoints on the transmitter set to full?
* ESC set with LiPo cells on auto?
* ESC set forward only?
* Timing setting is?

Try the above and see if they help. Let us know either way.


.

[Nick1979]

Thank you for the suggestions.
Here's what I've done so far - I set the "neutral" throttle position as per the instructions of the ESC. I need some help with adjusting the "end points" - how is this done?
I've set the Lipo to 6 cells in the ESC. I did not use the Auto, should I?
Forward only is on. I also tried 0, 15, and 20-something (highest value) on the timing setting when I was on the water. I did not notice a difference since the motor was working at low RPMs and speed was so slow.
I am also noticing a grinding/rubbing noise from the stuffing tube once I squeeze the throttle trigger more than half. Everything is rock solid, I have a very mild bending in the tube, all is plenty lubricated. The flex cable has been polished and is very smooth. I also noticed the tubing is getting warm (friction) after I do a quick rev or two of the motor (in my basement, on the workbench). I am thinking if trying a .150 flex cable with a teflon liner for the 1/4" tube that's already in the boat and see if this makes things better. Current flex cable is 3/16" with no teflon liner. I tried removing the flex cable the motor ran noise free, albeit with low RPM's. The noise issue is clearly in the tube. I also have to figure out the low speed issue. Here is video clip with the issue:

https://youtu.be/h7UEEISYRo0

and here:

https://youtu.be/pHo9cbtohaA

[photohoward1]

If he has a 1/4" tube and a .187 shaft isn't he going to have quite a bit of whip?

[Peter A]

What are you lubing your flex with? Marine grease would be best, and plenty of it, the tube should be full. As far as the throttle speed goes, are you getting full throttle? You might consider fitting trim tabs as well.