I Have Pulled 400 Props. Here Is the One That Nearly Took My Hand
By Tomas Iglesias, Yacht service diver, South Florida. Reviewed by Amanda McCallister, editor.
Propeller Removal & Repair | Hull & Bottom Cleaning July 11th, 2017. The water at the 17th Street inlet was a swamp. Visibility maybe a foot. I was probing the starboard wheel of a 70-foot Sea Ray with a dull knife, trying to carve a chartered fishing line off the shaft. The client, a guy in a polo, had said 'It's just a little tangle, should be a ten-minute job.' He was wrong. Ten minutes turned into forty. The line had winched in tight around the cutless bearing, and every time I got a strand loose, the current pushed me back. I worked blind, feeling my way along the shaft. Then I found the other thing: a hairline crack across the base of one blade, right where the hub flares. I touched it with my thumb. That's when the prop spun. Fifteen years. Four hundred props pulled. That was the one that nearly took my hand.
The Moment It Went Wrong
The current shifted. The boat rolled a little, and the shaft rotated on its own—maybe a throttle was left in gear, maybe just the force of the water on the rudder. Whatever it was, the blade whipped around, and the cracked edge caught the side of my wrist. It wasn't a cut. It was a slice. Through my three-mil glove, through the skin, into the fat. I didn't feel it right away. Pain came a second later, warm and pulsing. I pulled back, kicked up to the surface, and grabbed the dive platform. Blood was mixing with the green water. The client asked if I was okay. I said, 'You need a haul-out.' He didn't argue. That crack wasn't just a nick—it was a stress fracture that could have sheared off at cruising speed, sent a piece of bronze through the hull, or worse, through a swimmer. That was the moment I stopped being cocky. I'd pulled props with lines, nets, even a dock fender. I'd worked under boats in marinas so tight you could hear the hulls groan. But this one taught me that a prop can move when you least expect it. Even a 'dead' shaft isn't dead if there's any current, any roll, any idiot on the bridge bumping the throttles.
Why Props Are Mean
A propeller is a spinning hunk of metal with sharp edges. Seawater turns those edges into razors with time. But the real danger is what you can't see. Fouled props hide line, netting, and sometimes sharp objects. You're in water with one-foot visibility, reaching into a cloud of fiber and bronze. Your hands do the seeing. That's why a small cut can become a serious gash before you even know it's there. Divers in Fort Lauderdale work by touch most days. We know the difference between a fishing line and a cable. We feel for keyed shafts and cotter pins. But the props themselves are unforgiving. A blade that's bent, cracked, or loose can shift under pressure. And if the shaft isn't locked, one turn of the engine—someone hitting the starter while testing a horn—can turn a prop into a blender. The industry standard is to lock the shaft with a prop lock or remove the key. But I've seen boat owners forget. I've seen divers who trust them. That's how accidents happen. Not with a roaring prop at full speed—that's rarely the case. It's the quiet ones, the ones everyone assumes are safe, that get you.
Fort Lauderdale Specifics
We're the Yachting Capital of the World for a reason. From Bahia Mar to Pier Sixty-Six to the private docks on Las Olas, there's a thousand boats in the water every day. That means a thousand chances for line wraps, prop strikes, and fouled running gear. The water here isn't clear, either. Sediment from the Everglades, runoff from the intracoastal, and constant churn from boat traffic leave us diving in a brown soup. You learn to work by feel. Every marina has its personality. At Bahia Mar, the current rips hard on an incoming tide. At the 17th Street bridge, you wait for the bridge operator to pause, or you dodge the wake of every go-fast that blows by. The locals know that on a Saturday afternoon, the intracoastal is a minefield of half-drunk captains who don't see your dive flag. That's why I'm extra careful. That particular day was right off the inlet. Tides were swinging, and the boat was tied stern-in to a slip. The prop was under the counter, and I was wedged between the shaft and the trim tab. If the boat hadn't rolled when it did, I'd have been fine. But it did. And that's the kind of thing you learn to expect—not to predict, but to respect.
What I Tell Every Boat Owner
First, don't hire a diver to work in the water if you can avoid it. For a simple line cut, sure—but for any suspected damage like a vibration or 'ticking', haul the boat out. A crack like the one I found is invisible at the surface until it's too late. An underwater running gear inspection is fine for preliminary checks, but nothing beats a dry dock in Fort Lauderdale, where you can actually see the damage. Second, if you've got a diver coming, secure the boat. Turn off the engine, lock the shaft, and hang a tag that says 'diver down.' No exceptions. I've seen more near-misses from people stepping into the cockpit while a diver is under there than I want to count. Third, don't go cheap on props. Bronze and stainless are not the same. A bent stainless prop can be straightened, but a cracked bronze one is a throwaway. I've pulled 400 props in 15 years, and the ones that broke were never the ones that looked bad—it was the ones with a tiny flaw deep in the hub. Finally, listen to your diver. If I say you need a haul-out, I'm not trying to upsell you. I'm trying to keep you from becoming a statistic. The ocean doesn't care about your schedule.
Frequently Asked Questions
Can I tell if my prop is damaged without pulling the boat? Sometimes, but not reliably. If you feel vibration, hear a ticking, or see reduced speed, a diver can inspect and maybe clean fouling, but a hairline crack often needs a lift and a close look. You can't trust a tactile check in murky water. Is it safe to try to clear a line from the prop myself? No. A line wrapped around the shaft can pull you in, even with the engine off. The shaft may roll with current or wake. Always shut down, lock the shaft, and hire a professional diver. I've pulled 400 props—the only close call I ever had was on a job where the owner swore the engine was off. How much does a prop replacement cost? It varies wildly by boat size, material, and whether you need a rebuild or a new casting. A common model for a 40-foot boat might run between $1,500 and $4,000 installed, but for larger yachts it can go higher. Your diver can give you a range, but always get the prop surveyed before you buy.