Why aren`t there any data on these floats?
Size (lenght,width and height) and weight?
The 70-80% rule for floaters is pretty hard without any numbers to add in the calculation :P
I bought the EPO 182 light aircraft With LED Lighting
( http://www.hobbyking.com/hobbyking/store/uh_viewitem .asp?idproduct=16659 )
Are these floaters suitable for that plane?
These floats seem to have the sponsons way up front? That seems like it would be hard to get the plane up on the step go take-off. The back of the sponsons should be just in front of the CG. I start by lining it up with the leading edge of the wing and go from there.
Has anybody actually flow with these?
You need chine rails - a strip on the inside edge of the floats from the front to about the prop. A length of balsa triangle stock glued to the bottom edge will do it or a flat strip on the inside edge. It deflects the water downward.Are your floats too close together ? Or the prop too close to the water ?
A good rule of thumb is that the floats should be between 70-80% of the fusalage length. But weight plays a big part in the selection, if the plane is heavy you'll need floats to support it, then even 85% is good. The plane needs enough power to get them up on the step or you will just push water and never take off. The placement is very important too. Too far forward and the plane will nose over, too far back and it won't get up on the step. I suggest you make you mounts adjustable so you can move floats toward and backward at the field until they work right for you.
No, they are for the EPO Mini Cessna 182 with 928mm ws, or similar weight model. 600g plane and less then 1m ws. I don't think any of HK's floats are big enough for 1.8m ws plane 2500g. It is too heavy.
Hi Wayne, The floats are 502mm long nose to tail, 60mm wide across the step (widest point). Each float weighs 33g with no hardware attached. The weight of the included hardware is probably more than the weight of the floats. My guess is that they could support a 700g-800g plane (including the weight of the floats). Cheers, Steve
An update on my previous reply. I just finished converting a small foamy plane over to floats. Final weight with floats ..... 805g. Floats support the plane well with the bottom of the tips 1-2cm above the water. Wouldn't go much heavier than 800g.
The water rudder needs to be installed on the back end of one of the floats. Using a flex cable attached to the rudder servo, rout the cable back to the water rudder. The best path to run the cable will provide the least number of bends and turns to minimize binding. Which ever side (left or right) that you chose, then you attach the rudder to the float on that side.
I may be wrong, but the water rudder that came with these floats looks like it's designed for attachment to the rudder itself. The tails of these floats are relatively thin (maybe 1 cm) and the rudder wouldn't need much of a hit to snap the foam off. The rudder has a very long shaft and could easily installed on the rudder the same way a tail wheel is set up with the rudder extending down to the water.
The angled wire goes through the tail. There is a small hole that looks like it is for a screw. It normally has glue that must be carefully pushed out. Then one end of that angled wire slips in the plastic servo clamp at rudder and the other side of the wire sticks out the bottom and that is were the long wire with the water rudder on it connects.