I am going to get a Great Planes Piper J-3 Cub .40, and put a float kit on it.
What .46 engine would you recommend? Thanks, -Dan

i would recomend a saito 72 for the cub......but i would get the thundertiger .46

I have a TT .46 on my Goldberg Cub. I would like the sound of a four-stroke but this is a really nice engine for flying! Don't sound bad with a Pitts muffler by the way.

With the drag from the floats I would reccomend an Irvine 53. Something in a 50 anyway. How about an Enya 50 or an OS 50sx? I would say that the above reccomended Saito 72 would do just fine. I am building this kit and am going to install a Saito 80 in it. I already have one. It will have a full size wing. I will eventually build a clipped wing for it.

Mark Shuman

NEW O.S. .46AX............HAS MORE THAN ENOUGH POWER FOR MY SOMETHIN EXTRA!!

for the best it would be the new 46AX by os...But an fx wouldnt hurt..

if you can afford a 4-stroke, get the Saito or O.S. or even a Magnum/ASP. Because IMHO there's no better way to finish a cub than with the scale sound of a 4-stroke engine... as they say:

Once you go for four
it's hard to do with two

thunder tiger pro46 is greeeeeeeeeeeeeeeeeeat

If you can dish it out the saito is the best choice. It sounds a lot better than the 2 strokes and is perfect for a cub. You just cant beat that four stroke sound on that kind of airplane.

I vote for the TT46.

How about a 50 size four stroker on a 20 size Cub with floats?

Zimbo you are pushing it. It will probably work. But be carefull you may have to do some finageling to get it to balance. The extra power though would be worth it.

Mark Shuman

best is way to objective. for the $$$ TT46 pro, if you have heaps of spare $$ OS46FX

does TT even make a .46? I know SuperTigre makes a .45! I thought TT made a .45 also. But I would skip those anyway and just go for the new O.S. .46AX! Awesome engine!

yea TT make a .46.. i have one on an avistar.. thunder tiger PRO.46 [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXKF97&P=0]TT pro.46 Clicky Clicky[/link]

I have that new OS .46AX and it cranked up right out of the box.....with it primed or course!!......but it has the dual bearings on the front and back.....very smooth running engine......I'm proud to say that I am one of the people who got the first ones......I haven't flown it on my Somethin' Extra........but I have to vote for that new OS AX......it was wining on the lean high end.....still have to break it in though............MY VOTE IS FOR THE AX

OS .46 AX. PERIOD!!

I will have to go for the Thunder Tiger Pro46. In my opinion, it is the best value on the market for this size range.

That's right man........lotsa' horsees........Man....that thing was screamin w/ a 10x6 for part of the break in..........

Look at the Dyno tests the TTpro 46 has more thrust than any standard 40/46 size engine on the market and it's cheep!
if your going to go with floats remember it takes a lot to break the suction when the plane trys to leave the water!
I would go with the 72 saito or a 60 two stroke.
my cub has a 72 OS fs and I think it works kinda hard to get up!
my 40 size Sea Master has a saito 72 and she comes up on plane fast and gets airborne with ease.

Irvine .46 or a .53

This is a beginners forum... therefore, DON'T use an oversize engine.

Maybe once you learn to fly the oversize engine would be OK... but NOT for a beginner EVER.

The appropriate replacement 4-stroke for a 2-stroke .46 is appx .54 ci. .72 is WAY out. The appropriate replacement 4-stroke for a 2-stroke .20 is a .25.

Beginners with overpowered planes learn bad habits. If you have never flown a .40 size Cub with a .35 on it (they do well) or a Sig Kadet Sr with a .40 in the nose... (or some similar combination that can't hang on the prop EVER) you probably haven't learned some of the power management which can save your airplane in case of an engine problem.

Don't think you will get a 40 size cub with floats off the water with a 35 !
but what the heck do I know about flying off water
and I would not give bad info to anybody especially a beginner! and yes I do have power management skills, and yes I do hang my planes on the prop every chance I get and I break rule #9 every time I fly.
Under the right conditions a beginner needs over sized engines, flying off water is one of those conditions. getting a airplane to come up on plane and break the suction of water takes more power than if you were flying off land.

Tower 46s are nice, and cheap, lots of power.

ASP ??