I am trying to put a small camera into a Kadet LT 40. Would a 60 four stroke or a 46 2 stroke be better?

Saito .56 or a .72 would be perfect. I have a Saito .56 in a H9 Cherokee 40 which is fairly heavy and it does well.

$$$$$$$$$$$$$

With that large wing a good 46 ball bearing would do it if you don't want to go with the four stroke.

Larry

$$$ not a factor if you want it.

A 46 will haul this plane + camera around just fine.

$ is a factor because i'm 12. However the plane is trainer but I would rather have the four stroke for quiter operation were I live.
According to some reviews the Magnum 61 is a great engine.

Smasher, you're absolutely right, I remember when I was twelve $4.95 was a big deal for a McCoy .36, which I still have and a McCoy .35 also. I know absolutely nothing about Magnums though, my friend w8ye knows a lot about them. Merry Christmas.

The Magnum 61 will turn a 12-6 APC at 9700 whereas a Saito 56 will turn the same prop at 10,000 on 10% fuel. The Saito 72 turns a 13-6 prop at a little over 10,000. A Magnum 52 and the OS 52 turn a 11-6 prop at close to 10,000. A OS 46 caliber 2 stroke will turn a 11-6 at 12,000+. These would be ones like the Thunder Tiger Pro 46, GMS 46, Tower/Hobbico 46, and the Irvine 46.

If money is a problem and you need a lot of power, the Magnum XLS series 46 2 streoke might be in order. It's a new design that's just been out in the last 4 or 5 months. If you shop around, you might find one at a better price. They were on sale during the summer months. You have to make sure you are getting the XLS series and not the XL.

With a LT40 and a 46 2 stroke engine, loaded down with a camera, You need to run a large diameter - low pitch prop with the 46 2 stroke engines. I'm talking about a 12 X 4 prop.

When you run a 11" or greater diameter prop on a LT40 ground clearance begins to be a problem. You have to extend the nose gear all you can and put huge tires on it. Big tires are not a bad idea anyway if you not running on asphalt.

Good luck

Jim

What kind of 3 bladed prop would the magnum turn?

When you are converting to a three blade prop, you reduce the diameter by one inch. A 46 that uses a 11- 6 two blade, will use a 10-6 three blade.

The choices af props in the three blade variety is rather limited. They are generally only available in the 6" pitch range.

The evolution 3 blade from Horizon has a low pitch and is for a 46 size engine.

.46 BB 2 stroke will haul the plane fine.

My daughter's LT 40 has a .46 Thunder Tiger, 11x6 prop. It has more than enough power (it will hover) for it's size and weight. If you added a light disposable camera it would not even notice the extra weight. BTW she has the ARF.

Have fun,
Jon

Witch is more powerfull- the O.S. FX .46 or the ThunderTiger .46?

Oyeh- the camera is a Kodak APS atomatic advance camera-F350
Real light too :0

In this case, the engine that is more powerful is the one that you get a better deal on.

Enjoy your Thunder Tiger,


Jim

Any .46 will pull it fine and a small light camera will hardly be noticed as far as weight goes.

Just be sure to use foam to mount the camera or rubber band suspension would be even better. If you don't, the pics will be blurry from vibs. Dropping to idle before snapping the shot works too sometimes.
I made a mount for the camera with a flex push-rod to push the button then used RB's to hold the mount. Worked great!

Kirk