name of medication

May 16, 2012

Drive Types – Inboard, Outboard, Sterndrive, Jet, Pod

Filed under: Miscelaneous — Richard Jordan @ 12:00 am

Gemini 105MC Sterndrive

Most commonly yachts feature an inboard engine which exits through a stuffing box to a cutlass bearing and prop. Or they feature an outboard motor attached to the transom. But there are a couple other alternatives including sterndrive (I/O), jet, and pod drives. Let’s survey the type of yacht and qualities of each of these drive types.

Stern Drive
The yacht I am most familiar with that features a sterndrive is the Gemini 105MC catamaran. From the outside, she appears to have an outboard motor, but when you get close, you realize that the engine is inside the centerline lazarrette. The benefits are a small footprint, ability to tilt up the outboard, and lower cost of installation. Disadvantages are higher maintenance costs because of the tight location and vulnerability to water corrosion.

A See-Doo's Jet Drive

Jet Drives
Jets are most famous on Sea-Doos but also common on waterski boats and even some larger vessels. These types of vessels propel themselves via a nozzle that spray high pressure water. They can turn on by redirecting the jet via a deflector and go into “reverse.” Other advantages include the safety of not having a spinning blade, high speed, and minimal draft. The biggest disadvantage is efficiency which has increased but still cannot compete with the energy consumption of a prop drive.

Pod Drives

Pod Drives
Pod drives are in vogue on larger vessels and seem to be future of propulsion. They have all the benefits except that which you would expect with new technology such as cost, consistency, and support. These devices come in two general types: (1) those in which the motor is located inside the vessel such as on a saildrive and (2) those with the motor inside the pod such as a Zeus Pod. Most have a transmission which allows the pod to be rotated 360 degrees (so called Z-drive) and negates the necessity of a rudder of a yacht. Many have the prop fixed to the leading edge of the pod or two counter rotating props.

Besides the outboard on your dinghy and inboards in your yacht, there are at least three more distinct types of propulsion such as stern, jet, and pod. Jets continue to get more efficient and pods more reliable so expect to see more of these types of setups every year.

Looking to Purchase or Sell Your Yacht? Please Contact Us.

Our professional and knowledgeable brokers are not only attuned to the ever changing international market but also have thousands of bluewater miles under their belts. We have the experience and integrity to ensure that your purchase of a boat will be a decision that you can be proud of.

Jordan Yacht and Ship Company represents fine sail and power yachts worldwide, both new and used. The majority of our many listings are just minutes away from our office. Call or email for an appointment and let Jordan Yacht and Ship Company help you launch your dreams.

"Dear Jordan Yachts - I write with great appreciation for all that Tom Harney has done for us. My wife and I have just purchased our first cruising boat and we plan to sail for a couple of years in the Caribbean with our three small children. Tom has been so much more than a broker and his experience, dedication and commitment to Jen and I have gone way beyond our expectations. In many ways, he is like an “adopted” father who is looking out for me his “adopted” son as we moved into uncharted waters. There have been countless examples of his "above and beyond" execution from our first phone call to ultimately closing on the boat. For example, the official closing of the paperwork could have been the closure of the transaction but to Tom, he was much more interested in seeing that we properly outfitted the boat and provided many recommendations from his 30+ years in the marine industry of who to use and what equipment is needed. In addition, he personally got involved in managing the outfit of the boat well beyond the official closing. Words can't express our appreciation and I would welcome any inquires from potential clients as to the positive experience with Tom Harney - On behalf of my family, a sincere thank you ---" - Marc Konesco s/v adagio