70′ IRON LEADER
- Custom Hull #
- 48
- Splash Date
- June, 2008
Originally commissioned by another engine manufacturer as a test platform for 2400 HP motors, resulting in a top speed of 49 knots as a bare boat with no tower, Hull 48 underwent a repower in 2021 to field test the first pair of high-performance C32B 2433mhp engines in the U.S. We are honored that our custom hulls are the choice of leading engine manufacturers and serious offshore anglers alike. We can’t wait to see where they’ll take us!
Jarrett Bay Custom Sportfish First in North America with 2433 HP Cat® Engines - JB Insider Special
Anatomy of a Jarrett Bay Repower with New Cat® C32B Engines - JB Insider Special: 2 of 3
Power & Poise - Hull 48's New Horsepower Unleashed - JBI Special Ep. 3
Specs
- Length
- 70' 2"
- Beam
- 20' 0"
- Draft
- 5' 6"
- Water Line
- 64' 0"
- Cockpit Area (sq. ft.)
- 215
- Dry Weight (lbs.)
- 93,000
- Fuel Capacity (gal.)
- 2,000
- Water Capacity (gal.)
- 350
- Holding Tanks (gal.)
- 51
Power
- Engine(s)
- Twin Cat
- Model
- C32B
- Horsepower
- 2,433
- Genset
- ONAN
- Model
- MDKBE
- Kilowatts
- 21.5 x2
Performance
- Cruise Speed (kts.)
- 38
- Cruise RPM
- 1,900
- WOT Speed (kts.)
- 46
How much fuel does this 70′ use at 30 kts Volvo Penta with the IPS on a 70′ Spencer burns 134 gal ph at 38 kts and 108 gal in the artical in Marlin and on the Volvo video they said they burned 98 gal ph. I think the differts was the weight. Volvo compeared other 70′ but they weigh 30,000 more then the Spencer. So I would like to see the numbers.
Hello Brian! Below is data from the oringinal sea trial. This was with hard top (no tower) and rough interior with added weight to allow for comparable completed interior.
Twin MTU 16V2000 @2,400 hp each / conventional propulsion
1400 rpm 28.0 knots total fuel burn 94 gph
1600 rpm 32.0 knots total fuel burn 108 gph
1800 rpm 37.5 knots total fuel burn 128 gph
2000 rpm 40.5 knots total fuel burn 166 gph
2100 rpm 42.0 knots total fuel burn 179 gph
2200 rpm 44.0 knots total fuel burn 198 gph
W.O.T. 48.5 knots total fuel burn 233 gph
What are the lead times from board to launch. Thats a very open question. Im looking at some of the larger production sport boats. Without naming names you know who they are. I want between a 70 and 80, safety first, durabilty in materials, then comfort. if you could kindly send a link to other photo’s of your current work that would be appreciated. Thank you for your time.
Hi Steve, I know Randy replied to you via email already, but here is the link to the 77′ Jarrett Bay that is currently in progress & for sale – as it sounds to be in the size range you are sonsidering:
https://www.jarrettbay.com/carolina-construction/custom-yachts/hull-56/
Please let us know if you have any other questions!
Have you built any boats with Zeus Drives in it?
Hi Jordan, yes our most recent launch, the 46′ Convertible, is powered by Cat C9s with ZF pods. We also have in-progress 43′ for sale that is designed to be powered by pod drives. Please let us know if we can answer any further questions – we love talking about boats!
I could see the layout of this model??
Thanks for your interest Jose, you should have received more information via email, please let us know if you have any other questions!