Speed - RC Gas Boats Discuss gas RC boats right here!

Putting together a plan for a GTX...

Reply
Old 01-12-2012, 01:46 PM
  #101
infinityteg
 
Join Date: Oct 2006
Location: Auckland, NEW ZEALAND
Posts: 175
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

Customer service wise i would recomend going with WD hardware.
I have just paid for the two Z-drives and gearbox for my GTX build and also hardware for my Mystic build. Werner is very help full and great to deal with

cheers
steve
infinityteg is offline  
Reply With Quote
Old 01-12-2012, 01:56 PM
  #102
expresscraft
 
Join Date: Dec 2008
Location: COCOA, FL
Posts: 713
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

hey wantariva, i see you found the apache build thread,did you notice very few negatives in that thread? i think his boat is awesome and is very unique. 50 lbs and 55 mph not bad, i think it could be much lighter, if i built it i would not use cltches as the 520's will crawl and stay running. also its safe to say the first set of props where not the best,its nice to know there are LandR props out there, thats what he has also the electric starter is nice.he did a great job and his thread should help you out quit a bit.
expresscraft is offline  
Reply With Quote
Old 01-12-2012, 02:03 PM
  #103
wantariva
Thread Starter
 
Join Date: Nov 2011
Location: Loyalhanna, PA
Posts: 52
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

That build thread is amazing! lol Theres no way that boat should ever weigh 50 pounds IMHO. is it really worth it to go with a L and R setup? I more than likely wont be using clutches and i know for sure that i wont use electric starting either so that'll save some weight. What do you think about that drive/rudder setup? I really like it but i still like the WD drives a little more I think. One of the only really major things I dont like about that build is how he did the exhaust...other than that its pretty well thought out I think
wantariva is offline  
Reply With Quote
Old 01-13-2012, 05:32 AM
  #104
expresscraft
 
Join Date: Dec 2008
Location: COCOA, FL
Posts: 713
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

running the 2 front pipes forward just bought him some much needed room,all 4 pipes coming out the back makes for a very hard boat to service, it might be the lessor of the the two evils,i would not want my rudder to be built into the drives, his was cool but the option to try different set ups where very limited,
expresscraft is offline  
Reply With Quote
Old 01-13-2012, 07:20 AM
  #105
wantariva
Thread Starter
 
Join Date: Nov 2011
Location: Loyalhanna, PA
Posts: 52
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

I was thinking side exit exhaust more towards the rear I agree about the lack of adjustability. Has anyone ever taken the water cooling lines from an electric motor and wrapped them around an exhaust? Looking for ways to keep heat down in addition to venting...
wantariva is offline  
Reply With Quote
Old 01-13-2012, 10:45 AM
  #106
infinityteg
 
Join Date: Oct 2006
Location: Auckland, NEW ZEALAND
Posts: 175
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

MHZ make a nice tuned pipe with alot of water cooling built into it
http://www.mhz-powerboats.com/mhzpow...der/1615cn.jpg
infinityteg is offline  
Reply With Quote
Old 01-13-2012, 12:43 PM
  #107
wantariva
Thread Starter
 
Join Date: Nov 2011
Location: Loyalhanna, PA
Posts: 52
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...



are those know for decent performance? i dont know the first thing about exhaust efficiency in relation to two stroke engines. 4 stroke is a whole other story...I know plenty there lol

wantariva is offline  
Reply With Quote
Old 01-13-2012, 04:16 PM
  #108
HendricX
 
HendricX's Avatar
 
Join Date: Jan 2009
Location: Rotterdam - NL
Posts: 686
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

Quote:
ORIGINAL: martno1fan
so might be an idea to get Hendriks view on this,
im wondering why he hasnt allready found this thread and replied.
Cause I'm not reading every item :-)

Lot of mis-information here and some BS.

The blame for USA drive's and/or flexcables for braking if used on a 520/K600 is the stupid way they are manufactured.

Just imagine how to couple a 1/4" flexcable to a 1/4" propshaft ...

It's a blunt end to end welding , or pealed off a layer of the flex to get it into the propshaft.

End to end welding is weak , a stripped to 3/16"(or less) flexcable is even weaker.

On this side of the pond , we have ABSOLUTELY no problems , using Suhner 1/4" flexcables

glued/soldered into 8mm propshafts , maybe Scott Schneider will confirm this ,

as I talked him over to this European drive-system into Octura SS struts for his twin-rigger .

Werners Z-drive has 'ferulles' on the one-piece propshaft , and a square collet is needed.

And yes ... they bend and slide during steering .. and until now ... never failed.

WD200 [link=http://www.wd200-modellbau.de/?Antriebe%2FDrives:Z-Drive%2FDirektantrieb]website[/link] / [link=http://www.youtube.com/watch?v=dim2-QfSrYQ]Video[/link]
HendricX is offline  
Reply With Quote
Old 01-14-2012, 12:09 AM
  #109
martno1fan
 
martno1fan's Avatar
 
Join Date: Jan 2005
Location: blackpool, UNITED KINGDOM
Posts: 11,390
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

Good info as allways Hendick,i use those cables you talk about and never had one fail but ive never used them on an inline YET.I like the wd200 z drives,the fact that they use direct drive yet look scale is what makes me think these are the best choice if i ever go with stearable drives.
Mart
ps hope your well mate,we need to catch up soon got lots going on at the moment
martno1fan is offline  
Reply With Quote
Old 01-14-2012, 05:12 AM
  #110
blizard05
 
blizard05's Avatar
 
Join Date: Aug 2006
Location: plymouth, MA
Posts: 1,040
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

Could you share some info on the Suhner flex cables? Thanks Larry
blizard05 is offline  
Reply With Quote
Old 01-14-2012, 09:44 AM
  #111
HendricX
 
HendricX's Avatar
 
Join Date: Jan 2009
Location: Rotterdam - NL
Posts: 686
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

Suhner cables is what most European dealers are selling , in the USA @ Gizmo.

It's a Swiss company that make all sorts of 'twisted-cable' see [link=http://www.suhner-transmission-expert.com/site/index.cfm/id_art/14496/vsprache/EN]WEB-SITE[/link] .. High-Torque cable page > [link=http://www.suhner-transmission-expert.com/site/index.cfm?id_art=14308&vsprache=EN]HERE[/link]
Their 1/4" flexcable is easely recognized by the 'golden-strand' . picture is what I sell to customers.

Attached Thumbnails
Click image for larger version

Name:	Pn38099.jpg
Views:	15
Size:	50.7 KB
ID:	1713868  
HendricX is offline  
Reply With Quote
Old 01-14-2012, 04:19 PM
  #112
expresscraft
 
Join Date: Dec 2008
Location: COCOA, FL
Posts: 713
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

i think aeromarine uses cables with a gold band as well, might be theres i agree with what you are saying about them being cut down then wielded, it makes sense, however not all the failers are coming at the wielded joint,maybe the floating of the square cable allows some give thats needed, as opposed to a locked in place cable with a collet, i dont really know, im sure there is also a difference in a cable going straight to the prop versus the power going through a clutch and a gear box then spilt to 2 cables delivering power, not arguing with you just disgussing, i do like the cables you posted. they are very nice.
expresscraft is offline  
Reply With Quote
Old 01-24-2012, 11:34 AM
  #113
infinityteg
 
Join Date: Oct 2006
Location: Auckland, NEW ZEALAND
Posts: 175
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

Using twin drives, How far apart should the drives be (spacing between the drives) on a mono

cheers
steve
infinityteg is offline  
Reply With Quote
Old 01-24-2012, 06:11 PM
  #114
HendricX
 
HendricX's Avatar
 
Join Date: Jan 2009
Location: Rotterdam - NL
Posts: 686
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Putting together a plan for a GTX...

As stated in another thread .. 80 > 90mm
HendricX is offline  
Reply With Quote
Old 08-22-2017, 11:13 AM
  #115
expresscraft
 
Join Date: Dec 2008
Location: COCOA, FL
Posts: 713
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

So any information on any of these multi motor beast Running we are back making the 65" GTX, today's power and parts are even better then 5 years ago. Even today's cables. i have a friend running a 54" inline twin powered c-54 that runs 79 mph and has broken blades off 3218 props and not broke the cables.
expresscraft is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 05:40 PM.