What style prop do we like on a 20' Sceptre

[Capt Terry]

Originally Posted by Fr. Frank

I remember Frank Brown well. In the early 80's, I used to manage Waterway Marina in Palm Beach Gardens at PGA Blvd and the Intercoastal. Frank Brown's Marine was 150 feet away across the highway.

I wasn’t too fond of Frank initially. I did most of my original boat purchase and other things through Hauptner. Frank was kind of crochity or something, but got friendlier after they split and I bought my second Merc. I remember Frank showing me the first Oceanmaster or its predecessor when they were still together on PGA. The father of a friend bought the first or second one, which I didn’t find out about until I rode in it a few years later when he gave it to his son, Phil. On a real rough day was glad to follow in his wake from Jupiter to PB inlet.

[Basketcase]

Originally Posted by hardkorre

and how did you like the rev 4?

It was great! Just got back last night from a weekend of boating with it. Quick to plane, no blowouts. Got to 5400 rpm at 43mph with 2 people, 2 large dogs, a completely full gas tank and a boat full of gear/food for 3 days.

I'm thinking maybe the motor might want to come up another notch. When I got the boat it was at the bottom. After watching the plate, I brought it up 2. With this prop, I am able to hit the trim limit without sucking air. It jumps up and rides nice and high, but maybe there is more? I did not get a chance to watch the vent plate this time, so before I move I'll do that. I was keeping an eye on water pressure though, and it never faltered. Should I be able to vent the prop?

Overall very happy with the way this boat rides now. I'll have to let Ken@propgods know. Thanks for the recommendation, guys.

[flyingfrizzle]

I done a little mercury prop testing with my 20 sceptre and it ran well with the 17 rev 4, not the fastest but best plane speed and really helped on the blow out you talk of. I have my motor up high and experience the same with the 3 blade smaller dia props. The rev-4 will run an inch or two higher than most and still be happy. The mirage 17 with raise the rpms up over the rev 4 17p prop and a mirage 19p will fall about the same rpm as the rev-4 17p. You don't get the same cupping power as the rev 4 simi-surfacing prop with the mirage but it still dose very well for a 3 blade. You will see a few mph fall off the low plane speed though with it. I currently have a 21p 14.5 dia quick silver vengeance a41 on there currently. Not much cup and it dose blow out a fair amount more. Low plane sucks but it is 4-5 mph faster on the top end than the rev 4. If I go out in the ocean or ruff conditions I throw the rev 4 on her. If I am in the creek on a slick day like most fishing days I run the light weight thin bladed a41 vengeance. The 19p mirage seems the be the best all around prop for anything you throw at it. I have the older mirage a41 17p and the newer a45 mirage plus with the ventilation holes. You can tell a difference between them as well even with the holes pluged. The older a41 props are thinner bladed and faster but do flex more. The newer ones seem better on the low end and have more cup or grip.