Model Boat Mayhem

Mess Deck: General Section => Model Boating => Topic started by: BlazingPenguin on September 19, 2008, 04:43:08 pm

Title: Robbe Jet ski
Post by: BlazingPenguin on September 19, 2008, 04:43:08 pm
Does anyone know how to set up the twin props properly on the Robbe jet ski?

They seem to clash with each other on normal running and will rip off a prop if you dare to try turning....any help appreciated. ::)
Title: Re: Robbe Jet ski
Post by: Tester on September 19, 2008, 05:51:23 pm
Not a lot of help but mine is set up as per the build instructions and no problems at all.

Title: Re: Robbe Jet ski
Post by: BlazingPenguin on September 19, 2008, 07:16:30 pm
Erh...I dont have the build instructions¬ :(
Title: Re: Robbe Jet ski
Post by: john54 on September 19, 2008, 07:40:43 pm
Heard of that snag before. Try less servo throw or decrease rate on t.x.
Title: Re: Robbe Jet ski
Post by: grasshopper on September 19, 2008, 08:09:33 pm
That's the one with two 'outdrives' isn't it? - have you got a link missing between the two, they shouldn't strike each other unless the turn angle is too high or there's too much play in the hinge points.
Title: Re: Robbe Jet ski
Post by: BlazingPenguin on September 19, 2008, 08:14:15 pm
The threaded link between both drives is there so its not that.

If I reduce the throw I would less a good bit of manouverability I think.

I would like to see what the setup booklet says....anyone willing to forward a scan???
Title: Re: Robbe Jet ski
Post by: Tester on September 19, 2008, 08:57:15 pm
I'll did out the manual and scan the relevant pages, it'll be tomorrow if that's ok

Richard
Title: Re: Robbe Jet ski
Post by: BlazingPenguin on September 19, 2008, 09:12:25 pm
That would be fantastic Tester!
Please dont put yourself out at all, whenever you get around to it will be fine. O0
Title: Re: Robbe Jet ski
Post by: Tester on September 20, 2008, 09:54:15 am
Scanned the manual and email to your address in profile.

Attached is pic file of the propeller set up section

HTH
Richard
Title: Re: Robbe Jet ski
Post by: BlazingPenguin on September 20, 2008, 10:26:37 am
Just read it Richard and the horizontal/vertical alignmeny method they suggest is what Ive done myself, I do notice the drives are rather more splayed than mine,I'll also try to limit servo throw a little.  O0
Title: Re: Robbe Jet ski
Post by: Tester on September 20, 2008, 10:29:26 am
It might be worth checking the pushrod length between the two drives, should be 41mm tip to tip
Title: Re: Robbe Jet ski
Post by: BlazingPenguin on September 20, 2008, 11:00:20 am
Tadaaaaaaaaaaaaaaaaaaa!  O0

Problem solved sir!
Sweet as a nut,nothing touches anything its not supposed to...anywhere.
Lets se what tomorrow and 9.6v brings shall we?  :D