New here: Inflatable mods questions

Lynx7386

Cadet
Joined
Apr 8, 2018
Messages
23
I've been looking at getting a boat for a long time now, everything from the basic kayaks and canoes at walmart to full size boats, but I'm working on a budget and I live in an apartment with my wife and daughter so space is at a premium - I have nowhere to really store an actual full size boat or even the kayaks mentioned. I have a small storage unit and a truck (honda ridgeline) for transportation.

I recently came across the intex seahawk 4 when searching for cheaper boating options, and then after some web digging found the excursion series, and I think I'm interested in getting the excursion 5; it seems roomy enough for my wife and I as well as our daughter, or myself and a buddy when out fishing, and at 125$ or so for the boat itself it's relatively affordable. However, I wasnt sold on an inflatable until i discovered the mods people do for them. I've been skeptical about inflatable boats for a long time now due to the feeling that they'd be a little too flimsy and unstable for the things I like to do (fishing, primarily) - but seeing people building hard floors, biminiys, and seat boxes on these things and making them look good has drawn me to the brand.

So, before I go about buying this thing and starting the likely lengthy project of modifying it to my needs, I have a few questions:

1. The floor. I've seen videos on everything from 1/4" to 1" plywood, what would you suggest? Beyond that, I'm trying to decide if it's better to do a 1 piece floor out of a single plywood sheet (which on the intex excursion 5 leaves the floor a few inches short of the raft bottom, a gap I'd rather not have), or to make it a multi-sectional floor with either 2 or 3 sections. Are there any disadvantages to a sectional floor? Should it be hinged or simply separate pieces held together by the inflation tension of the boat (which might be an issue if deflation happens for any reason)?
Obviously having something smaller than 4x8 plywood sheet floor would be ideal for apartment living, as a 2 or 3 section floor I could break down and put into storage or even a closet.

2. The motor. I have no clue about trolling motors, I didnt even know electric motors for these were a thing until doing a bit of research on the inflatables. I've operated two other boats before - a sailboat (think it was a 20 foot?) and a dual engine speedboat, both in the gulf of mexico, whereas this boat will be operating on lakes and rivers around the san antonio area. What kind of motor should I be gunning for? What's the most cost efficient for performance delivered?
I've seen both gas and electric motors, I've also seen improvised line-trimmer motors, so what should I be going with here?
As far as the motor mount, one video I saw had the motor mounted on metal pipes going directly to the hard plywood floor of the boat, rather than using the motor mounts designed to attach to the boat itself, any preference on which is better?

3. Biminy - I've seen both elaborate piping frame systems used as well as simpler methods that just run PVC between the built-in fishing rod holders. The latter seems far easier to build, but how would that hold up in any kind of wind?

4. Any other tips you guys can provide? I dont like going into a new project like this until I know all I can, any ways to save costs and hassle are greatly appreciated.
 

Lynx7386

Cadet
Joined
Apr 8, 2018
Messages
23
Oh one more question I forgot to add: A lot of the mods I see have the floor with a bench or box/seat in front, one in back, and one bench in the middle. Is the middle bench necessary for stability or can I just do the front and back seats and leave the center open?
 

Sea Rider

Supreme Mariner
Joined
Sep 20, 2008
Messages
12,345
If not on a tight budget, go for a traditional inflatable air deck 12 footer inflatable boat with a stern transom built. Add a 2 strokes 3.5-5 HP outboard if possible to find and enjoy fishing and boating as well. With an outboard can go boating to far away distances compared to the limited power and traveled distances an electric trolling motor provides.

Happy Boating
 

Lynx7386

Cadet
Joined
Apr 8, 2018
Messages
23
On a bit of a budget, I do have a toddler afterall =P I've looked at gas and electric trolling motors and I cant really decide which is better for the price. An electric like minn kota ends up running 300-400$ with the motor, battery, and power center, but a gas outboard costs just as much from what I've found.
 

Bonaventure

Petty Officer 2nd Class
Joined
Jul 3, 2016
Messages
167
I would look at the Mariner4. It has a slat floor and an inflatable keel. There is a custom motor mount available for it. I believe it is a more rugged boat than the Excursion 5.

I would recommend getting a used 2 HP Johnson or Evinrude (both essentially the same). They weigh about 24 pounds and are good at driving these boats. You could sit on a couple of coolers on the slat floor for now and upgrade to a custom plywood floor later. I am still using the slat floor in mine, I have a sub-compact car and don't feel thee is enough room for the plywood floor plus motor and all gear.

Electric motors require a marine battery, plus charger. The battery weighs a lot and is not condusive to being in an inflatable boat ( to me , anyway).

There are other small gas outboard motors that would suit, but the motor mount will only take 40 pounds and 3 1/2 HP.
 

Sea Rider

Supreme Mariner
Joined
Sep 20, 2008
Messages
12,345
Yep, go for a 3.5 HP max outboard. 2.5/3.5 HP ones weights same. Electric motors are very limited on power and cruising range compared to electric motors. A marine bat is quite heavy, will rock on slatted or inflatable floor when cruising in non flat sea conditions.

Happy Boating
 

Lynx7386

Cadet
Joined
Apr 8, 2018
Messages
23
I've looked and looked and havent been able to found a gas outboard that's reasonably cheaper than electric trolling motors even with all the extras. I also dont have anywhere I could store a gas motor, due to living in an apartment I cant have the gas fumes or oil/liquid fuel leaking everywhere.

This is along the lines of what I'm looking to re-create:
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Sea Rider

Supreme Mariner
Joined
Sep 20, 2008
Messages
12,345
All the added extra stuff seen on deck is for an comfy inflatable boat to be kept imflated at home, garage, on a trailer. You'll be bored very soon each time you must assemble/disassemble and take the extra stuff along the boat and floor to your appartment and inverse the procedure.

Can keep a fuel outboard standing up at a corner with no fuel spills whatsoever provided that tank cap and air valve are kept closed. small portables uses less than 3/4 gal of fuel which is nothing compared to 3-6 gal larger brother HP tanks.

Happy Boating
 

Bonaventure

Petty Officer 2nd Class
Joined
Jul 3, 2016
Messages
167
Everything in boating is a compromise. You probably do need to go electric, but you need a good Marine Battery and a good Charger, preferably a smart charger.
 

Sea Rider

Supreme Mariner
Joined
Sep 20, 2008
Messages
12,345
Dozer,

Before going straight for the 10 footer have it weighted, alum panel floors and wooden old floors weights very close to each other. Still a heavy inflatable compared to current 12 footer if ease of portability, handling is what you're after..

Happy Boating
 
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