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

Gas Jet Boaters

Reply
Old 03-09-2010, 01:36 AM
  #226
Scott Schneider
 
Scott Schneider's Avatar
 
Join Date: Feb 2008
Location: Old Hangtown , CA
Posts: 851
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

Quote:
ORIGINAL: infinityteg

heres the link to the pump i think it looks like. it says its good for up to .90 nitro engines. I ran a weedeater through one and handled it fine. will try one again one day once ive finished my molds (almost done)

http://www.jet-drive.de/index.php?op...d=11&Itemid=17

cheers
steve
40mm IMO is way too small for 25cc gassers ... the torque of a .21 to .90 engine range is only a fraction of what we have with the current generation gas engines.
*Just for giggles went out and measured my extra 5 blade swashdrive impeller ... 52 MM !!


Digging around the GRAUPNER sites, found this which actually references use on a gas engine

Graupner JET propulsion unit 5 2347Graupner JET propulsion unit 5 2347
JET propulsion unit 5 2347 The JET propulsion unit 5 is a development of the JET propulsion unit 4. A re-design of the steering nozzle
and reversing flap have produced a much lighter version of the JET propulsion unit. However, since
the shape of the JET unit housing is the same as that of the JET propulsion unit 4 (Order No. 2348), it
can be used as a simple replacement for the preceding model. The inlet tube and thrust nozzle are
made of very robust pressure cast aluminium, while the plastic parts are moulded in glass fibre
reinforced material. The impeller shaft runs in twin ball races. The new JET propulsion unit is ideal for
internal combustion engines, as thrust reversal is obtained by operating the reversing flap rather than
by reversing the direction of rotation of the engine. The steering nozzle incorporates an integral
cooling water nipple. Suitable power plants are internal combustion engines of 15 to 30 cc capacity, and
electric motors rated at a minimum of 700 Watts output power. The steering servo must be a powerful
type; we recommend one with an output torque of more than 5 kg/cm (e.g. C 4621, Order No. 5126).
If you wish to install the JET propulsion unit 5 in an AZIMUTH ATLANTIC CHALLENGER and power it

[img][/img]
with an internal combustion engine, you will need to reinforce the hull with two layers of 300 g/m2
glass cloth, seal off the four stern openings by laminating glass over them, and alter the openings to
suit. Suitable power plants 1. Petrol: ZENOAH G 230 PU, Order No. 1878 with power set, Order No. 432 2. Electric:
ULTRA 3500-6M, Order No. 6361 with 4 x SANYO 6N-4000 DRL, Order No. 2516

Specification
Length approx. 285 mm; Width approx. 78 mm; Height approx. 85 mm ; Flange Ø approx. 78 mm;
Shaft Ø approx. 7 mm ; Impeller Ø approx. 49 mm ; Weight approx. 545 g



£163.43
Scott Schneider is offline  
Reply With Quote
Old 03-09-2010, 01:57 AM
  #227
Scott Schneider
 
Scott Schneider's Avatar
 
Join Date: Feb 2008
Location: Old Hangtown , CA
Posts: 851
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

Then found this site that has a LOT on specific info on this pump set.

[link]http://rds.yahoo.com/_ylt=A0oGkm_J8JVLn88AvJRXNyoA;_ylu=X3oDMTEyY3B2aGl hBHNlYwNzcgRwb3MDMwRjb2xvA3NrMQR2dGlkA0RGUjVfODE-/SIG=12vg978fg/EXP=1268204105*http%3a//www.highperformancemodels.com/graupner%2520jet%2520unit%25202347.htm[/link]
Scott Schneider is offline  
Reply With Quote
Old 03-09-2010, 02:04 AM
  #228
bentley marshall
 
Join Date: Jun 2006
Location: morrinsvillewaikato, NEW ZEALAND
Posts: 1,696
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

links not working scott
bentley marshall is offline  
Reply With Quote
Old 03-09-2010, 04:15 AM
  #229
F1roddo
 
Join Date: May 2007
Location: NSW, Australia
Posts: 192
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters


Quote:
ORIGINAL: mickieb49

Interesting....
I have had a little trouble starting my Zenoah on the weekend , it seems like it was flooding once i was using the pullstarter , can anyone tell me what their setings are on the carby? I started at with the Low on 1+-1/4, High 1 5/8+-1/4 ? . It wasn't even trying to start, plenty of spark and the fuel is fresh ?????? all i have now is a sore arm . Please help as i am at a loss of what is going on.

Also getting rid of a few Swashdrive MK1 jets, not going to use them now as going to try my hand at Prop drives, PM me if your interested.

"going to try my hand at prop drives".......Hmmmmm.....Have you seen the light MickieB!!! hehe

Chris
F1roddo is offline  
Reply With Quote
Old 03-09-2010, 04:22 AM
  #230
bentley marshall
 
Join Date: Jun 2006
Location: morrinsvillewaikato, NEW ZEALAND
Posts: 1,696
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters


Quote:
ORIGINAL: Scott Schneider

Then found this site that has a LOT on specific info on this pump set.

[link]http://rds.yahoo.com/_ylt=A0oGkm_J8JVLn88AvJRXNyoA;_ylu=X3oDMTEyY3B2aGl hBHNlYwNzcgRwb3MDMwRjb2xvA3NrMQR2dGlkA0RGUjVfODE-/SIG=12vg978fg/EXP=1268204105*http%3a//www.highperformancemodels.com/graupner%2520jet%2520unit%25202347.htm[/link]
i think this is what scott was trying to link to

http://www.highperformancemodels.com...nit%202347.htm
bentley marshall is offline  
Reply With Quote
Old 03-09-2010, 11:28 AM
  #231
Scott Schneider
 
Scott Schneider's Avatar
 
Join Date: Feb 2008
Location: Old Hangtown , CA
Posts: 851
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters


Quote:
ORIGINAL: bentley marshall


Quote:
ORIGINAL: Scott Schneider

Then found this site that has a LOT on specific info on this pump set.

[link]http://rds.yahoo.com/_ylt=A0oGkm_J8JVLn88AvJRXNyoA;_ylu=X3oDMTEyY3B2aGl hBHNlYwNzcgRwb3MDMwRjb2xvA3NrMQR2dGlkA0RGUjVfODE-/SIG=12vg978fg/EXP=1268204105*http%3a//www.highperformancemodels.com/graupner%2520jet%2520unit%25202347.htm[/link]
i think this is what scott was trying to link to

http://www.highperformancemodels.com...nit%202347.htm
Yup, that's it
Scott Schneider is offline  
Reply With Quote
Old 03-09-2010, 06:14 PM
  #232
specialk1
 
specialk1's Avatar
 
Join Date: Feb 2007
Location: fort lauderdale, FL
Posts: 1,222
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

Wow thanks for all the great help . i think I'm going to start from scratch , i have the molds to make more hulls and after reading this thread I'm going to make a new Gasser jet drive i still have lots of question
specialk1 is offline  
Reply With Quote
Old 03-20-2010, 11:38 PM
  #233
aussier6er
 
Join Date: May 2008
Location: qld, , AUSTRALIA
Posts: 57
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

ahh my jet boat hull has found a brother !!! while browsing through the pages i found what looks to be very similar to the jet boat hull that i have ( http://www.rcuniverse.com/forum/m_89...tm.htm#8920423 ) i was planning on selling it but now i have been given insperation to do a build on it !!!

i saw that mickieb49 has a swash drive mk1 for sale might be a bit dear for a second hand unit i have also seen the graupner and kmb units what would be the best out of these ??

i had the hull out yesterday and started to sand the hull back with wet and dry and found a nice white gel coated hull underneath the matt black paint had a think about the paint job i would like to give the hull and i am thinking of a 2pac white paint job

not sure what drive unit to run as of yet but i am thinking of coupling it upto a zenoah g260pum

and the roll bars hmm i was thinking of making one out of round aluminium tubing but after seeing a couple in the pictures on the thread i am now thinking of making one out of 1.5 inch flat aluminium and bending one up after doing some cutouts into the flat aluminium


anyways some more help from you guys on what unit i should be looking at would be great !!!!

Attached Thumbnails
Click image for larger version

Name:	Ig12155.jpg
Views:	162
Size:	63.8 KB
ID:	1401882   Click image for larger version

Name:	Sn40523.jpg
Views:	73
Size:	66.1 KB
ID:	1401883   Click image for larger version

Name:	Af89800.jpg
Views:	65
Size:	61.7 KB
ID:	1401884   Click image for larger version

Name:	Zt52171.jpg
Views:	128
Size:	41.3 KB
ID:	1401885   Click image for larger version

Name:	Qb37225.jpg
Views:	88
Size:	58.7 KB
ID:	1401886  
aussier6er is offline  
Reply With Quote
Old 03-21-2010, 04:14 AM
  #234
mickieb49
 
Join Date: Jan 2010
Location: Sanctuary PointNSW, AUSTRALIA
Posts: 358
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

Hi Aspire2008, don't know if you noticed but the MK1 unit i have is new, unused and never fitted in a boat.     I am sure you will have luck with the Graupner and Kmb units.
 
mickieb49 is offline  
Reply With Quote
Old 03-21-2010, 05:46 AM
  #235
aussier6er
 
Join Date: May 2008
Location: qld, , AUSTRALIA
Posts: 57
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters


Quote:
ORIGINAL: mickieb49

Hi Aspire2008, don't know if you noticed but the MK1 unit i have is new, unused and never fitted in a boat. I am sure you will have luck with the Graupner and Kmb units.

ahh no troubles i didnt see that the unit was brand new !!!!

p.m sent

aussier6er is offline  
Reply With Quote
Old 03-21-2010, 10:20 PM
  #236
Mike2735
 
Join Date: Sep 2003
Location: Nashville, NC
Posts: 138
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

I have what is probably an off the wall question for you gas jet boaters. I was wondering if anyone had ever considered putting a jet drive in a ZippKits Easy Vee. I really like the hull and am very intrigued with the jet drive concept and was wondering if this could be a possibility or if I am just way off on the type of hull that would be fun to drive. I am not looking to race this Hull. I have a ZippKits Illusion that I intend to race. This will just be a play around boat. Any thoughts or ideas will be greatly appreciated.

Thanks.
Mike2735 is offline  
Reply With Quote
Old 03-22-2010, 12:20 AM
  #237
dicko
 
dicko's Avatar
 
Join Date: Feb 2004
Location: Adelaide, AUSTRALIA
Posts: 3,507
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

You will need to cut the boat shorter so tha it has a chance to turn and also cut a delta pad into the rear for the jet pickup. There have been several deep vee to jet conversions done on this forum. They may now perform as well as a specific jet hull, but seeing as though there are no jet hull races it doesn't really matter as long as you're having fun. Have a go & show us your results.
dicko is offline  
Reply With Quote
Old 03-22-2010, 12:26 AM
  #238
Scott Schneider
 
Scott Schneider's Avatar
 
Join Date: Feb 2008
Location: Old Hangtown , CA
Posts: 851
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters


Quote:
ORIGINAL: Mike2735

I have what is probably an off the wall question for you gas jet boaters. I was wondering if anyone had ever considered putting a jet drive in a ZippKits Easy Vee. I really like the hull and am very intrigued with the jet drive concept and was wondering if this could be a possibility or if I am just way off on the type of hull that would be fun to drive. I am not looking to race this Hull. I have a ZippKits Illusion that I intend to race. This will just be a play around boat. Any thoughts or ideas will be greatly appreciated.

Thanks.
I actually brought up the subject talking with Joe Petro a few years ago shortly after the EZ V came out. His thoughts were as were mine, hull would be an easy enough build to modify for a delta keel but too long a hull to run like a sprint does..
If you reworked the top decking to fit the hull made without the transom placement it has, moving it one bulkhead forward it would shorten hull I think @ 8 inchs.
Being a wood hull, sky is really the limit on mods one could do and get it all sorted .... hulls so inexpensive, you screw up your out what ? $60 or something like that.
Scott Schneider is offline  
Reply With Quote
Old 03-22-2010, 12:33 AM
  #239
Mike2735
 
Join Date: Sep 2003
Location: Nashville, NC
Posts: 138
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

Scott,

That is what I was thinking. I can screw up $60.00 in a lot of ways. Why not try to make something fun and maybe not screw up. WOW what a concept. I think I will try it. I have a stock zenoah lying around that needs a home and I will buy the Graupner 2347 jet and see how it goes. Thanks guys.
Mike2735 is offline  
Reply With Quote
Old 03-22-2010, 07:55 AM
  #240
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: Gas Jet Boaters

Why not get the free plans available of the 48" gass deep vee ? its similar to the easy vee and runs just as well if not better .Scale it to whatever size you need its simple enough.
Mart
martno1fan is offline  
Reply With Quote
Old 03-25-2010, 05:09 PM
  #241
infinityteg
 
Join Date: Oct 2006
Location: Auckland, NEW ZEALAND
Posts: 175
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

The first sprint boat out of my molds. just need to join them togerther. the nxt ones will be joined in the molds.

cheers
steve
Attached Thumbnails
Click image for larger version

Name:	om33144.jpg
Views:	113
Size:	118.3 KB
ID:	1404766   Click image for larger version

Name:	ql35237.jpg
Views:	78
Size:	136.5 KB
ID:	1404767   Click image for larger version

Name:	yd81286.jpg
Views:	65
Size:	128.8 KB
ID:	1404768   Click image for larger version

Name:	wq41836.jpg
Views:	75
Size:	135.2 KB
ID:	1404769  
infinityteg is offline  
Reply With Quote
Old 03-25-2010, 09:57 PM
  #242
Dana W
Thread Starter
 
Join Date: Jul 2006
Location: Bend, OR
Posts: 759
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

Nice job , can't wait to hear the testing results . I'm glad these boats are getting more popular .
Dana W is offline  
Reply With Quote
Old 03-26-2010, 12:46 AM
  #243
Scott Schneider
 
Scott Schneider's Avatar
 
Join Date: Feb 2008
Location: Old Hangtown , CA
Posts: 851
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

Hey guys ... The Graupner jet unit for the gas engines How does it get mounted within hull ?
My buddy just received his and was asking me because it has no mount holes for screwing down to floor of the delta keel within his Davette hull [sm=confused.gif]
Scott Schneider is offline  
Reply With Quote
Old 03-26-2010, 02:04 AM
  #244
infinityteg
 
Join Date: Oct 2006
Location: Auckland, NEW ZEALAND
Posts: 175
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

I had a KMB unit which is similar to the graupner unit and i cut the hole out of the delta the size of the jet unit and reglassed over top of it (after waxing the unit) then drilled and bolted it in. hope this helps. where did he get the unit from (other than the high performance models site?

cheers
steve
infinityteg is offline  
Reply With Quote
Old 03-26-2010, 06:26 AM
  #245
Dana W
Thread Starter
 
Join Date: Jul 2006
Location: Bend, OR
Posts: 759
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

It didn't come with installation instructions ? Yep it's probably the same as the KMB . I used epoxy and glass to hold it inplace .
Dana W is offline  
Reply With Quote
Old 03-26-2010, 01:20 PM
  #246
Scott Schneider
 
Scott Schneider's Avatar
 
Join Date: Feb 2008
Location: Old Hangtown , CA
Posts: 851
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

I will be seeing it in person this weekend ... thanks for the heads up
Scott Schneider is offline  
Reply With Quote
Old 04-02-2010, 01:00 AM
  #247
da mad maori
 
Join Date: Jul 2006
Location: , AUSTRALIA
Posts: 771
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

i used two small bolts and large washer type clamps to bolt the front down... i would think it will work well havent tryed it yet.....




i have two little screws in place to prove concept then i replaced with small bolts and "chocks"

da mad maori is offline  
Reply With Quote
Old 04-02-2010, 01:04 AM
  #248
SS132OFT
 
Join Date: Feb 2010
Location: GladstoneQueensland, AUSTRALIA
Posts: 18
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

Holy crap, look at the size of that pump! Need to put that in something small
SS132OFT is offline  
Reply With Quote
Old 04-14-2010, 07:01 PM
  #249
Dana W
Thread Starter
 
Join Date: Jul 2006
Location: Bend, OR
Posts: 759
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters

Here's an update on my DaVette Squirt Boat . I installed the KMB pump with epoxy and cloth . Next I installed the new Zenoah 260 at 27% . That would be 9 1/4 " from the transom . I found an old universal joint in the drawer that was 5mm on both ends . It fit the pump perfect but I had to mill the 1/4" stub shaft to fit the universal joint . I hope it holds up to the rpm I'm going to apply to it . A friend at work ( our welder ) had some stainless steel tube that he welded me up a roll cage . Next I'll figure out how I'm going to install it so I can also use it as a carrying handle .
Attached Thumbnails
Click image for larger version

Name:	Fd91896.jpg
Views:	119
Size:	143.7 KB
ID:	1418132   Click image for larger version

Name:	Hc93162.jpg
Views:	97
Size:	135.2 KB
ID:	1418133  
Dana W is offline  
Reply With Quote
Old 04-14-2010, 07:45 PM
  #250
Scott Schneider
 
Scott Schneider's Avatar
 
Join Date: Feb 2008
Location: Old Hangtown , CA
Posts: 851
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Gas Jet Boaters


Quote:
ORIGINAL: Dana W

Here's an update on my DaVette Squirt Boat . I installed the KMB pump with epoxy and cloth . Next I installed the new Zenoah 260 at 27% . That would be 9 1/4 '' from the transom . I found an old universal joint in the drawer that was 5mm on both ends . It fit the pump perfect but I had to mill the 1/4'' stub shaft to fit the universal joint . I hope it holds up to the rpm I'm going to apply to it . A friend at work ( our welder ) had some stainless steel tube that he welded me up a roll cage . Next I'll figure out how I'm going to install it so I can also use it as a carrying handle .
Zoom Zoom, your real close !!
Love the roll cage, yet to do mine due to race season and other boats now getting my attention.

keep us posted
Scott Schneider 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 12:44 PM.