ML Boatworks GP400 V2 DONE!

[olwarbirds]

Looks right Darryl, we got some nice GP400's in our gang... DJ

[darryl whitman]

lol thats a 1/4 shimmed with 11/32 down to 7/32 , That way if I need to replace the tube ,hope it will be easy.
next I'll start the paint job, I named her ( Magnetic Storm )

[flraptor07]

lol thats a 1/4 shimmed with 11/32 down to 7/32 , That way if I need to replace the tube ,hope it will be easy.
next I'll start the paint job, I named her ( Magnetic Storm )

OK cool, I thought about doing that but never got one to do it. But great idea none the less, I may do it on a future boat. Somebody needs to make a Butch Block for 7/32 tube, 3/16 flex I bet they'd sell!

[darryl whitman]

your so rite, with a built in oiler. that would be cool

[flraptor07]

I Finally got to run it!!

Here's a couple videos of the maiden voyage of my GP400, all I can say is Mike builds a awsome boat and I did a pretty fair job of rigging it. It ran very well for the first time out I'm very pleased with how nice it ran. Started with a X450/2 prop in the first video then dropped the strut a little and put on a Prather 240 (54mm 1.6 pitch) for the second video. Here's the first https://www.youtube.com/watch?v=6o01jbuI3HE second coming up!

[flraptor07]

Second Video!

I think I hit something (Turtle) at the very begining.. https://www.youtube.com/watch?v=12i0GrTWlqM Even with the 54mm prop motor temp was 87deg. and ESC caps were 114deg. but water was pretty cool, I'm guessing around 60deg. or so.

[tlandauer]

Chris, I just watched BOTH videos, awesome! Was going to ask you which prop you used in your first run, you answered my questions!
A hearty congrats to you for a fabulous build and an outstanding maiden.
Cheers.
Happy Holidays, my friend!

[darryl whitman]

looks sweet, what prop do u like ?

[cybercrxt]

What motor, esc, and lipo setup. We can get that thing faster! Let me know. Mike

PS, looks good for the first runs!

[flraptor07]

What motor, esc, and lipo setup. We can get that thing faster! Let me know. Mike

PS, looks good for the first runs!

Yes Mike I was going to holler at you, It's got a TP4070 1770kv, MGM 280-36 Lite Series ESC, Prather 240 prop (54mm 1.6 pitch) on 6s. What do I need to do to get rid of that little bit of sponson hop?

[cybercrxt]

Personally, I do not like that prop choice. 1.6pitch props I do not like on the GP series hulls, it forces the tail to drag, unless you lower the strut a bunch more. With the way it was riding, I suspect your sponson AoA was around 5-6 degrees, which will slow the boat down on that calm water for sure. You are running a really high KV motor for 6s. I was running 1500kv, 1527 Neu, with an X455 and X457 prop, detongued, tip cupped, thinned, balanced, and sharpened....With that being said, since you are running a high KV, I would try and X452, then try the X455 depending on temps. I just do not like a prather prop, I think its just a flat running prop and kills RPM. I have never really had much luck with them on any hull I have run, lol. Give those other prop choices a try, I think you will like the results. The sponson hop is prop related for sure. Also, when you give those props a try, set the strut around neutral angle, and put it 1/8" deeper than the sponson depth with the X455, and 3/16" deeper with the X452. Let me know how it goes, Mike

[flraptor07]

Personally, I do not like that prop choice. 1.6pitch props I do not like on the GP series hulls, it forces the tail to drag, unless you lower the strut a bunch more. With the way it was riding, I suspect your sponson AoA was around 5-6 degrees, which will slow the boat down on that calm water for sure. You are running a really high KV motor for 6s. I was running 1500kv, 1527 Neu, with an X455 and X457 prop, detongued, tip cupped, thinned, balanced, and sharpened....With that being said, since you are running a high KV, I would try and X452, then try the X455 depending on temps. I just do not like a prather prop, I think its just a flat running prop and kills RPM. I have never really had much luck with them on any hull I have run, lol. Give those other prop choices a try, I think you will like the results. The sponson hop is prop related for sure. Also, when you give those props a try, set the strut around neutral angle, and put it 1/8" deeper than the sponson depth with the X455, and 3/16" deeper with the X452. Let me know how it goes, Mike

Good deal, I'll deffinetly give that a shot. One of the guys in the club was saying put a 3 blade x448 on it, what do you think about that? BTW I already love this boat, I've never had a Hydro that ran this good right out of the box!!

[flraptor07]

Mike, also I don't know if you saw it or not but this is the Virginia Craftsman fin I got from Ray Rankle. DSC02871.jpg Does it look like the right one or is it too big?

[darryl whitman]

Chris, my V.C. T-fin is 2 3/8" under my sponson. hope this help you

[olwarbirds]

Mike, also I don't know if you saw it or not but this is the Virginia Craftsman fin I got from Ray Rankle. [ATTACH=CONFIG]125379[/ATTACH] Does it look like the right one or is it too big?

Chris, well done brother !... That fin looks bigger than the Va Craftsman I had on my GP400, but it could just be the pic, If I still had mine I could compare it for ya. Darryl has one I sent him for his GP400... DJ