tfl outdrive on CF mono

[Jesse J]

DYMotorshop carbon fiber 29.5" mono, 4S and plenty happy.
here is the short version: 3 min - regular speed then slo mo
here is long version: 8 min - same reg speed, much more slo mo with crazy wipe outs.
you are instructed to play your favorite glamour rock song - I would have used "its a kind of magic" by Queen, but they always mute my vids, so this is some assembly required.

[Tamelesstgr]

Jesse,

That's some "Drive it like you stole it" bashing right there. What are your thoughts on the hull construction? I'm really suprised at the speed and abuse that outdrive can take, how long have you been running it? Certainly seems to handle the choppy stuff pretty well, would you add trim tabs or anything else?

Ken

[Jesse J]

Hull is quite solid and very clean. I still added a layer of thick glass for super strength. I did remove 8" of inner and 3.5" of outer lift strakes. I totally guestimated on the outdrive height and cog.

This was the first time out and I was extremely astounded at speed and handling. I didn't have to adjust anything.
Drive seems solid and I think trick is to stay with stock motor and prop.

No junk on the back, I wanted to try it clean and she likes it that way. You can see the turnability.
Jim Vaughn, the wild and crazy driver even said we should make it a stock class! He also said "thrust vector" 32 times... That is why it doesn't need trim tabs.

[ray schrauwen]

DIY means you made the hull correct? Very nice. Can we see your guesstimate on the business end?

[Tamelesstgr]

Why remove sections of lift strakes?

[Jesse J]

DIY means you made the hull correct? Very nice. Can we see your guesstimate on the business end?

Sorry bout that, had name wrong.. It's this hull:

http://www.ebay.com/itm/750mm-29-5-Carbon-Fibre-Mono-Deep-V-Hull-for-Electric-Nitro-/282054825880

[Jesse J]

Why remove sections of lift strakes?

If a hull has too much lift, prop too low or more power than it was designed for, it can have a tendency to chine walk, turn poorly or other bad handling monkey business. In this case the strakes went to the transom and so now they don't.

http://i.ebayimg.com/images/g/daUAAOSwvt1WRUOt/s-l400.jpg

[ray schrauwen]

Thanks Jesse

[Jesse J]

Here are strakes as I modified them.
I'll get some business end shots soon.

[Tamelesstgr]

So did you remove the strakes completely down to the flat hull? Interresting stuff, thanks for sharing.

[Tango Whiskey]

Oh, wow; thanks for posting this, Jesse! Coincidentally, I bought that EXACT same DYMotor CF hull from Ebay, and also bought the TFL outdrive to go with it! I had also planned to experiment with 4S, but was a little worried about whether the outdrive could hold up to the rpm long-term. This was going to be my next boat project. I'd even planned to use that same through-hull dual water pickup!

I will be watching this thread with great interest, as I have a ton of questions you'll likely end up answering here.

Would you mind posting a pic of the end of the transom with a ruler showing mounting height...say, the distance from the top of the transom to the top edge of the square mount plate on the outdrive? Is prop shaft centerline on the same plane as the bottom of the keel?

What oil or grease are you using to lube the outdrive?

What did you use for the windshield decal?

I have some beautiful CNC trim tabs I'd planned to use as well, to add more scale bling to the transom complementing the outdrive. Not sure whether I should use 'em now.

Thanks in advance for all advice!

[Jesse J]

So did you remove the strakes completely down to the flat hull? Interresting stuff, thanks for sharing.

Down flat. Then sanded. Not quite 100% done yet... Might be good enough after seeing how she handled.

[oscarel]

Nice looking mono! The slo-mo over the waves looks like a real boat. And knowing you, the windshield is just electric or trim tape?? Last time there he added a "windshield" to mine and another boater's boats!

[Jesse J]

Ted, I should have expected your profile to say "super ocd" after your string of questions.
Glad to help.
I will post pic with dimensions for you.
I used the Ose green blue Greece for shafts.
Window decal is 1/8" yellow trim tape.
I'm not adding trim tabs or fins.
I can share some interior shots of battery placement if you.
Where in tx are you?

[Jesse J]

Nice looking mono! The slo-mo over the waves looks like a real boat. And knowing you, the windshield is just electric or trim tape?? Last time there he added a "windshield" to mine and another boater's boats!

You know me well, Oscar! Thanks, hope to see you out soon!