Model Boat Mayhem

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Prop choices...  (Read 1378 times)

U-33

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,337
  • K-157 Vepr. Akula-11
  • Location: Eastbourne, Sussex, UK
Prop choices...
« on: March 16, 2017, 09:49:59 AM »


Your guidance please, gentlemen...

My Jelly Bean has a Vision 400 motor running on a 9.6v 3500a/h battery pack...so what do you reckon for the prop  size (which is in a 40mm id steering nozzle) ....35mm two blade plastic ( standard type, not an X type) or a 35mm three blade plastic one?

Logged
Rich

K-157 Vepr. Akula-II (project 971U)
---------------------------------------------------------------

~~~~~~~  "Motorflotes need love too...."  ~~~~~~~

MotorFlote build log : http://www.modelboatmayhem.co.uk/forum/index.php/topic,15222.0.html

unbuiltnautilus

  • Portsmouth Model Boat Display Team
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 3,017
  • Location: Portsmouth, England, third rock from the Sun....
Re: Prop choices...
« Reply #1 on: March 16, 2017, 01:03:12 PM »

Two blade plastic. More pitch for dynamic diving thrust..
Logged
Listen politely, nod approvingly, then do what you want, works for me!

U-33

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,337
  • K-157 Vepr. Akula-11
  • Location: Eastbourne, Sussex, UK
Re: Prop choices...
« Reply #2 on: March 16, 2017, 04:05:56 PM »

Thanks chap...two blade  'twill be.
Logged
Rich

K-157 Vepr. Akula-II (project 971U)
---------------------------------------------------------------

~~~~~~~  "Motorflotes need love too...."  ~~~~~~~

MotorFlote build log : http://www.modelboatmayhem.co.uk/forum/index.php/topic,15222.0.html

unbuiltnautilus

  • Portsmouth Model Boat Display Team
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 3,017
  • Location: Portsmouth, England, third rock from the Sun....
Re: Prop choices...
« Reply #3 on: March 16, 2017, 06:50:59 PM »

Although........!


I cannot remember if the Vision 400 is a whizzy 400, or a 385 or 360 type, pretending to be something else. If it is a whizzy three pole one, I would change my advice to a 3 blade shallow pitch type. If a slower, 5 pole type, stick to the two blade type.


Whizzy Motor Wizard :}
Logged
Listen politely, nod approvingly, then do what you want, works for me!

U-33

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,337
  • K-157 Vepr. Akula-11
  • Location: Eastbourne, Sussex, UK
Re: Prop choices...
« Reply #4 on: March 16, 2017, 08:14:20 PM »

Aah...now, according to my research, the Vision 400 is a 385 variant,  quite happy to have 12volts shoved up it's five poles, and possessing loads of torque.


We shall see, oh wise one.  😶


And...is that yourself I see indulging in the delights of Facebook?
Logged
Rich

K-157 Vepr. Akula-II (project 971U)
---------------------------------------------------------------

~~~~~~~  "Motorflotes need love too...."  ~~~~~~~

MotorFlote build log : http://www.modelboatmayhem.co.uk/forum/index.php/topic,15222.0.html

unbuiltnautilus

  • Portsmouth Model Boat Display Team
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 3,017
  • Location: Portsmouth, England, third rock from the Sun....
Re: Prop choices...
« Reply #5 on: March 17, 2017, 06:34:46 PM »

Shove that 12v where the sun don't shine :-))
...I have indeed decided to dip my toe into the joys, tears, bigotry and untruths that are Facebook, long may it continue, I feel so at home %)
Logged
Listen politely, nod approvingly, then do what you want, works for me!

U-33

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,337
  • K-157 Vepr. Akula-11
  • Location: Eastbourne, Sussex, UK
Re: Prop choices...
« Reply #6 on: March 17, 2017, 06:51:31 PM »

Mind your feet then, chap...I'll see you on the dark side.
Logged
Rich

K-157 Vepr. Akula-II (project 971U)
---------------------------------------------------------------

~~~~~~~  "Motorflotes need love too...."  ~~~~~~~

MotorFlote build log : http://www.modelboatmayhem.co.uk/forum/index.php/topic,15222.0.html
Pages: [1]   Go Up