GRX SAW RiGGER

[grsboats]

I'm quite new to the Fe world(despite my 40 years of model boating) and absolutely fascinated about how fast a decent brushless motor can push a light rigger.For this particular reason I decided to postpone a nitro saw Project and adopt an electric motor to see how fast it could go...and yes it paid off all the time and money spent along the last year.Basically it is a hand laid up c.f.rigger based on some previous boats that I use to compete(heat race and saw) and the building process follows what I've been doing with full size boat accessories for years.Solid molds are made of a mix of premium epoxy resin and light powder quartz..... pics are better than words....This Project is divided in two parts: first one is boat equipped with a Leopard 4092 1390kvmotor (8S) used for most boat running tests and the ready to go version equipped with a Neu 1527 1D( 6S)..... enjoy!.Gill

[grsboats]

The follow up of the entire project at: http://www.grsboats.com.br/?p=6707. Last Sunday(2013-3-16) the boat ran predictably at 196km with no issues.....vídeo being edited and will be posted soon.Thanks Gill

[martin]

Gill fantastic results & congratulations, how are you finding the Nanos holding up with more & more runs on them. Thanks Martin.

[BrianW]

looking good Gill.

[grsboats]

Hi Martin thank you for the compliments and what I can say is that my very personal experience with the nano's is ok as I only have tried them on my saw boats i.e. used them for a short periods of discharge. BTW I'm still trying to figured out if the 65C are worth the extra money compared to the 45C.Anyway I think despite this or that brand I've learned that keep them charged and stored at the right levels can make a difference.Brian the MBP collets are incredible good and were a huge improvement on my boats.Thanks Gill

[ManuelW]

VERY interesting topic, will definitely follow that one here.

196km/h is an excellent result, I'd assume that was with the NEU 1527/1D on 6S? What ESC are you using with that setup and may I also ask for the prop?

Definitely looks like you exactly know what you are doing! Keep up the good work

regards,
Manuel

BTW: The MBP-collets are the best, I do also recommend them to others for around a year now, so far everybody loved those, either for flex shaft or wire drive.

[RaceMechaniX]

Great results Gil,

Those numbers are right up there with Joerg's, Chris' and my numbers for a Q hydro. I will also admit I have seen no difference between the 45c and 65c packs. I have run both back to back with the same set-up and speeds were within 2-3 mph. The battery temp had more of an affect than the C rating.

I will second the MBP couplers, well worth the money. I am hoping one I have ordered makes it here in time for our SAW this weekend, but I think the customs office likes it too.

Looking forward to the video.

Tyler

[grsboats]

I agree with you Tyler definetely no difference between batts.I'm glad I was able to find this coupler at Rocket City.Manuel the esc is a Swordfish 300Plus with data logging that is working great with the Neu 1527 1 D on 6S and the prop is a serie of four 2047 with different mods that is my personal secret(sorry).Next week more races and more challenges with more numbers.Just to tell you that three boats were built and only two still survive with minor injuries .Thanks Gill

[RaceMechaniX]

There is a good reason why SAW boats should be built in triplecates. Often FE SAW boats don't come back to the beach if all goes wrong.

We'll see how many I return with after this weekend.

[grsboats]

Yep! Good luck and wish you a new record!Gill

[martin]

Does the battery run any cooler with the 65c over the 45c even though their dosnt seem to be any speed advantage. Thanks Martin.

[grsboats]

Correct Martin but this is my personal experience with only Nanotech's maybe other brands show increased performance!There is a very small difference in temp with the 65C(lower) but sincerely nothing that I can say wow! In another thread i read that you use to run 65C...so tell something about them.Thanks Gill

[Chrisg81983]

Nice job gill I am interested in seeing the video.

[Mike Caruso]

I'm quite new to the Fe world(despite my 40 years of model boating) and absolutely fascinated about how fast a decent brushless motor can push a light rigger.For this particular reason I decided to postpone a nitro saw Project and adopt an electric motor to see how fast it could go...and yes it paid off all the time and money spent along the last year.Basically it is a hand laid up c.f.rigger based on some previous boats that I use to compete(heat race and saw) and the building process follows what I've been doing with full size boat accessories for years.Solid molds are made of a mix of premium epoxy resin and light powder quartz..... pics are better than words....This Project is divided in two parts: first one is boat equipped with a Leopard 4092 1390kvmotor (8S) used for most boat running tests and the ready to go version equipped with a Neu 1527 1D( 6S)..... enjoy!.Gill

Gil,
Very nice molds.
Mike

[martin]

Gill ive only used 60c on my Mini Sprint hydro & Mini Monos, for such small motors with low amp draws im more than surprised that i saw a clear increase in speeds. I started with Overlander 3s 2200mah 25c sport packs (Overlander is a good UK Lipo battery), then went to Turnigy Nanos 45c & got a good increase in speed. Then went to an Overlander Extreme Pro 60c & got further noticable increases in top end speed & more pick up speed, im suprised i saw thes increases on such small boats & motors as i would of thought the 45c Nano would of been more than capable of delivering all the power such small motors would of been asking for & going to 60c wouldnt have had such an increase that i saw. Martin.