UL-1 first run + videos

[Ub Hauled]

wow Tony, very nice work, how did you attach the aluminum to the hull, "JB" ?

[Fluid]

My guess is it was very close if not at 50 mph....

Probably a good guess. Brian made a pass with an m445 at the SAWs and had a time of 45 mph...but he was flipping through the lights so the true speed was almost certainly higher.


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[Flying Scotsman]

I'm sorry if I'm raining on anyone's parade here, but until {and if} future production runs somehow reinforce this during manufacture, I'd advise anyone who'se going to push this boat hard make an outside-the-hull reinforcing plate like mine. OK, lay the heat on, I'm ready !

Tony, superb advise for those who are going to push the hull beyond the RTR specifications and thank you for sharing this info. No Rain!! just a fellow member advising of his perceptions and resolution.

Douggie

[properchopper]

wow Tony, very nice work, how did you attach the aluminum to the hull, "JB" ?

Yuppers. First I JB'd the broken piece in & let it cure overnight . Then I laid play-dough on the back of the plate, pushed in place to make an impression of the fin bracket bolt holes & drilled them out. Then scuffed up the boat & the reinforcing bracket & JB'd it in place with clamps. Let it dry overnight & then faired the bracket to the sponson surface with various abrasives. Then bolted on the fin bracket with small "spot welds" of JB to the plate to keep it strong but allow removal if needed for other fins. Ready to rock again. BTW in the middle of all this I discovered that the rudder pin had one loose and one missing setscrew. Rudder could wag a bunch while underway. Shame on me for missing this during blueprinting ; this may have caused some instability in the straights
Tomorrow I'll re-configure the strut to accept a replaceable strut bushing & replace the stock shaft with an Octura, which is ever-so-slightly larger in diameter to eliminate the propshaft wobble. Also tomorrow comes my new magnetic prop balancer & Ive decided to get the prop caliper Mark Grim showed us & try some prop magic.

[Grimracer]

The boat has a replaceable strut bushing...

Grim

[properchopper]

The boat has a replaceable strut bushing...

Grim

My apologies, Brother. I looked closer & there it was. I have way too much dain bramage from all those years in the saddle

[alvinsmith75]

What strut bushing fits? I looked on tower and it looks like you have to buy the whole strut assembly just to get the bushing?

[properchopper]

Fast Water at Legg Lake Today

Call me crazy but the water was Fast today ! Ran the UL-1; 2S Elite 35C 5000's & an M445. It was violently fast. [ Same for my VS-1 & DF-33 BTW]. I adjusted the strut for a little downforce [ one or two throttle pulls got 'er up]; added a small airdam & it was simply ripping up the water. Temps were minimal after 2-3 minute runs. No water leaks [ a couple of spray-drops maybe]. I put a paper towel in at Jay's advice but it was bone dry. This boat kicks some serious a** !

[egneg]

Call me crazy but the water was Fast today ! Ran the UL-1; 2S Elite 35C 5000's & an M445. It was violently fast. [ Same for my VS-1 & DF-33 BTW]. I adjusted the strut for a little downforce [ one or two throttle pulls got 'er up]; added a small airdam & it was simply ripping up the water. Temps were minimal after 2-3 minute runs. No water leaks [ a couple of spray-drops maybe]. I put a paper towel in at Jay's advice but it was bone dry. This boat kicks some serious a** !

Did this make a difference? My first run with a M445 seemed a bit loose ,,, but then I found that the strut was 1" down and at 3 degrees +. I haven't had a chance to run it since I made the changes.

[properchopper]

Did this make a difference? My first run with a M445 seemed a bit loose ,,, but then I found that the strut was 1" down and at 3 degrees +. I haven't had a chance to run it since I made the changes.

My strut is 1 1/16 " from the bottom of the hull to the bottom of the strut & is angled down at the back @ 5 deg. The M445 with the 35C Elites is a wild ride; I'll prpbably prop down for fun running.

[skibo2]

Hi Guys
Just to let everyone know that properchoppers turn fin problem happened to my boat and it was not even out of the shipping box yet. The bottom of the transom below the turn fin mount plate was cracked all the way across. I made the same repair as he did with the aluminum plate and it worked fine. Grim there is a major problem with the hull in that area. It needs to be strenghtened and a larger backing plate installed before assembly.

[yudruln8]

i also flip my ul-1 today and rip out my turn fin i filled the hole with sticky putty but did not put back the turn fin

[properchopper]

Guys, I'm truly sorry this has happened to you, although at least I know that I'm not alone or somehow responsible for what I thought was a freak accident. I know that Grim put a lot of heart into this project and will take matters in hand.

[yudruln8]

do you think the warranty cover this problem

[properchopper]

It's not for me to say.