Whiplash / UL-1 Hatch and Canopy

[LuckyDuc]

Are you going to lay any glass on her, or just seal it up with finishing resin?

Nice build BTW.

[detox]

Are you going to lay any glass on her, or just seal it up with finishing resin?

Nice build BTW.

After top sheeting was epoxied over sponsons and cured, I drilled 6 holes (one in each sponson cavity) then injected finishing resin using syringe. I tried to make sure epoxy created a good filet around each top seam inside then set hull on sponson tips to let epoxy cure. Maybe this will make seams strong enough without adding fiberglass outside of hull.

[detox]

Canopy locator pad is in place on bottom of hull. Canopy fit is verygood and snug.

[detox]

Top sheeting area rear of sponsons is being reinforced with 1/16" plywood. I will blend in this area with drum sander after epoxy has cured. Finishing hull is next.

[detox]

To seal the hull I applied one coat of Z Poxy finishing resin then squeegeed off excess epoxy. This will make sanding easier after epoxy cures. Then I will brush on thick coat of high build Urethane Primer/surfacer. Sand then spray paint using Summit racing's single-stage Urethane paint (Flame Red).

http://www.summitracing.com/parts/SUM-UP622/

http://www.summitracing.com/parts/SUM-UP220Q/

...

[detox]

I have the hull primered. I will paint it soon.

[johnf]

That is looking great.

[LuckyDuc]

That is looking great.

[detox]

Thanks. The Flame Red paint that I purchased at my local Summit Racing store looked more like a Deep Red (too dark). So I exchanged it for Silver Mettalic. Temps around here are also too hot to spray using my Medium temp activator. I will have to spray early in the morning while temps are cooler and humidity is less.

[henryhound]

I just ordered a sport 20 whiplash and am glad I didnt order a cowl!!!! You have saved me a lot of time and research. I nalso have plans to use a UL motor Your boat is beautifuly done. I am wondering what speeds you are shooting for with that collection of batteries??

[detox]

Good choice and good luck with the build.

Speeds should be slightly over 50mph (51-53mph) using a couple of stock ABC props. Batteries are Hyperion 25c 5000mah lipos and UL-1 motor/hydra 120.

The Silver single stage urethane paint I planned on using will require too many coats to get good coverage. This will make boat too heavy. So I will paint it White insted. The White will cover lots better with just two light coats.

[Jeepers]

paint the boat white first then silver should help to lessen the amount of coats needed for the silver

[detox]

Boat is painted. The single stage White Urethane is curing

[henryhound]

When u come right down to it white always is a great choice. I know that this cowl conversion was not in your original plan so I am wondering if it had been, would you have modified that front cross member so that u wouldnt have had to deal with the battery box hanging down?

[detox]

I had lots of time to think about it, but I think I did it the easiest and best way possible. Plus I did not want to do away with original size battery box. Maybe you will figure out a better way or a way that you like..

Yea...White matches the nose cone and hatch verywell.