Moto calc?

[dkresge]

Is there a moto calc for jets? I am runnng a mega 22/30/2 40mm jet. Want to run some numbers through a moto calc to get some run tmes and current draws on different cell types and counts.

[AndyKunz]

By "jet" you mean EDF, right?

www.ezonemag.com would be the place to ask.

I'm pretty sure the *calc programs will give you what you want.

Andy

[dkresge]

I should have specified the type of jet. I am using a water/boat jet. It is manufactured by Keher ? spelling and imported by Hobby-Lobby. I was just testing it as I just mounted the motor, and I am running the Jeti 3p Opto 70 amp in my test with a 7 cell Sanyo 2400 it cuts out if I try to give it full throttle too quickley. I would be surpeised if I am hitting 70 amps! guess I need to hook up the amp meter to verify but if I had a moto calc even if it was for a standard prop I may be able to pick a prop that would have near the same load as the jet. The jet manufacturer recomends .90 Nitro of 25 cc gas or strong electric. Any comments are very welcome.

Thanks

[AndyKunz]

You need about 24 cells in series with an appropriate sized motor to even think of coming close to a .90.

70A really is easy to hit - it's well less than 1 HP (about 500W vs 750W) and you need to be up around 3500W.

Even if you had 24 cells you would still be over 100A in order to get .90-like performance.

Andy

[dkresge]

Ok, I am still rather new to this so I thank you for that consideration.

So, with the Jeti 3p 70 Opto, I would not want to run 24 cells would I?

Suppose I was running 14 cells in series, I know I would not be hitting the .90 power output but what would you guess would be my run time at full throttle? I know its hard to say without knowing a quantifiable load from the jet but what is your guess?

Thanks again!

[Doug Forrester]

Dan
I would suggest that you contact Ben Diss. He is very experienced with electric powered jetboats. Look him up in the members list and find his e-mail address.

[dkresge]

Doug,

Thanks for the contact. I will look him up.