Spirit of Texas Drag Hydro

[drwayne]

That is a good pic.It needs to be on a wall.

hahaha

we'll get nata2run to print them FULLSIZE !

[lenny]

That boat needs to be on my shelf.
Looking good doc.

[Xzessperated]

@Srislash .. no probs, m8

Fin can be removed if/when this heads to SAW.
Wont need it for str8 runs, the CR props will oppose each other thus no prop steer !
Will need a fin for oval racing, though.. to hold in corners..

However, full size have turn fins for str8 line stability. see below


thanks to photographer (name?).

I might be wrong Doc but I think I can remember Randy (BBY) saying on one of his posts that he puts very small fins on some of his SAW boats. The fins on the boat above are small in comparison to what we use on our toys.

[drwayne]

I might be wrong Doc but I think I can remember Randy (BBY) saying on one of his posts that he puts very small fins on some of his SAW boats. The fins on the boat above are small in comparison to what we use on our toys.

Dont be so modest Paddy.. what you've forgotten aint worth remembering ( except perhaps those 2 blondes from Davenport, '79 .... ? )

No details for those Ive researched identify the 'finlets' , however Im willing to listen to cognizant reasoning for their inclusion.

Happy New Year's eve old chum ! .. and to all you watchers and lurkers too !

[Xzessperated]

Dont be so modest Paddy.. what you've forgotten aint worth remembering ( except perhaps those 2 blondes from Davenport, '79 .... ? )

69 Doc

[Richie the shipwright]

Rooster tail in the other lane looks better tho! Ohhhh yeahhhh!! SWEEEEEEEEET...... The spirit, bluebird etc had small "stabiliser" blades/fins running along the inside of both sponsons.I think bluebirds were almost the full length of the sponson. They also kept spray/wash out of the tunnel and more than likely increased sponsons hydrodynamic lift I tried a few types on one of my early riggers (also had a normal fin on one side) and it seemed to work well. Still cornered ok too. Wasnt really doing warp 9 like yours will tho.... crazy ideas and experiments sometimes turn into RACEWINNERS!!!. Follow that gut feeling my friend.... :-)

[RandyatBBY]

I started a couple of boats in 1/6 scale, the hydro is 38 inches and the Runner botttom or Flatty is 36 inches. I have the same dummy motor for them. I do put a little turn fin on the inside rear of the starboard sponson. On the 1/10 scale hydro it is about 3/8 X 3/8 of an inch in size.




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[drwayne]

I started a couple of boats in 1/6 scale, the hydro is 38 inches and the Runner botttom or Flatty is 36 inches. I have the same dummy motor for them. I do put a little turn fin on the inside rear of the starboard sponson. On the 1/10 scale hydro it is about 3/8 X 3/8 of an inch in size.
[
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Thanks, Randy

You 'started' to build at 1/6 . and have 1/10 .. ? .. were these run ?
Q: was the micro turn fin for aesthetics or practical application ?
What improvement did it offer ?


regs
W
ps HAPPY NEW YEAR 2013 !

[Rumdog]

This build is very interesting. Unique. If the hull is able to handle that power... Watch out!! Should be a rocket, W!

[drwayne]

Thx Rummy.
Just stripped hull of everything strippable.
Preparing for surface prep then paint. . Very little to do, considering hull was made on a 42'c day (118f) it has a nice cure.
No $1400 paint jobs here ! will fire up the compressor and apply a few ice whites, followed by a couple clears to hold the decals.
Ditto the cowl when it arrives.

There,s a summer heatwave here. 40->42'c for the next week or more. . . . ideal for paint cure !

[kingwrench]

looking cool Doc, I crew chiefed, a Pro mod boat for several years. Was so of the most exciting racing I have done. The most laid back to, when I first starting tuning boats, Being a Pro Mod car crew chief I found myself wandering around with noting to do. Boats are so unlike the cars, Tear em down rebuild em, run and do it allover again. Boats throw a tune in her run it, drink a beer. With the car I went everywhere the car went, the starting line, the pass, the finishline, the pits<lots of time in the pits. Boats, Pits, launch, wave good buy, ramp, pits, have a beer!!
Lance Hedrick

[RandyatBBY]

The fin helps keep the boat going stright, It also helps at slow speeds for turning. With out it.... it is like a fish with out fins on the forward 75% of it body. I have ran the 1/10 Hydro's a lot. The runner bottoms a little and more to come..... all just for fun.

[drwayne]

Thanks Randy.
I'll knock up a micro turn fin for those straightline moments..

[RandyatBBY]

I like to have rear sponsonets on the drag hydros too make the boat much more stable launching.


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[drwayne]

I like to have rear sponsonets on the drag hydros too make the boat much more stable launching.
mageshack.us/photo/my-images/69/0008ea.jp

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Plz post a pic of it's rump with hardware.
Thx

[Chrisg81983]

Hey doc I see you changed your signature sometime in the last day or two. I wanted to ask you when you stated 110 mph fastest speed to date what was that the speed of. Thanks in advance.

[RandyatBBY]

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[drwayne]

Hey doc I see you changed your signature sometime in the last day or two. I wanted to ask you when you stated 110 mph fastest speed to date what was that the speed of. Thanks in advance.

You're confused.
Go chase kingwrench https://forums.offshoreelectrics.com/...411#post476411

[drwayne]

Extremely nice !.
Speed is almost irrelevant when the build quality is good.
I do envy good airbrush talent !
Thx for the extras.
W

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[Richie the shipwright]

Love your work randy..a big fan! Is there anything you havnt messed around with yet??? Jeeeeezzz......!! :-)

[RandyatBBY]

Love your work randy..a big fan! Is there anything you havnt messed around with yet??? Jeeeeezzz......!! :-)

Really do not do sailboats.

But thanks. I do have fun.

[drwayne]

Cheap 1/6 V8
http://www.ebay.com/itm/Summit-Racin...50905231224%26

[egneg]

I need one a bit smaller that only has the top half. I have checked a couple of places but no luck yet. I will watch the toy stores that has one on a cheap plastic car or truck.

[srislash]

I need one a bit smaller that only has the top half. I have checked a couple of places but no luck yet. I will watch the toy stores that has one on a cheap plastic car or truck.

By a bit smaller do you mean 1/10th Chuck? I'm not sure if Parma is still putting out the "Hemi".

[drwayne]

I need one a bit smaller that only has the top half. I have checked a couple of places but no luck yet. I will watch the toy stores that has one on a cheap plastic car or truck.

The 'bottom half' is all sump.. easy with a dremel to almost 1/2 it's total height... with pipes still hanging over the edges ( one could invert them for uprights and they'd clear that 1/2 height easily.
W

[srislash]

Is that 427 very heavy Doc?

[drwayne]

Is that 427 very heavy Doc?

an Oz or two at most ( 30->60gms)

hollow plastic . I wouldnt mount it onto an active boat..the spray from sponsons would tear it to shreds !

[srislash]

an Oz or two at most ( 30->60gms)

hollow plastic . I wouldnt mount it onto an active boat..the spray from sponsons would tear it to shreds !

Good point.Maybe a spray coat of epoxy over it?And UV over that. Or am I just making things complicated.

[drwayne]

it's reasonably robust plastic.. 1/16 -> 1/8 thick.

if you wanted to mount it on an active boat, buy several.. a spare motor for each race !

nite folks 1230pm here
Zzzzzzzzzzzzzzzz

[RandyatBBY]

Some time this year I will be molding the 1/10 scale top parts blower injectors and valve covers (If you can not find the Parma on ebay). I make mine float and pick them up with the boat. It is a little more realistic in crashes.