Thats why Ive put al omum skids under the keels .

Incidently its acctually 16.9 % Airfoil , on paper . But Built , with the silk & paper , 17 % might pass ,.
Has full span flaps now, about 2 1/4 wide . Tho the MC 72s keeping the Beringer , of actually 50s Aeromodellor Stunt Artical derived
small add on flaps, but let into the trailing edge.

Did a Morley T-Bolt , with Floats . With a Fox 19 , back 76 .
Which sat into wind and waves quitely ( ? ) workinging along toward me as I quitely backed up along the shore .
Thus , at the time , I figured If the Lines were on the other wing , Itd walk quitely AWAY from me. And thus the line tension would be remarkable .
Full UP , to get out of the grass , a wheeled device , flown clockwise , is remarkable. As it jumps out away from you. Rather than at you , whom requires ( usually , to back up, or leap backward. As required .

SO, Floats .
For Water , the prop tourgue / wash , has it away from you , flown clockwise , on a right hand ( conventional ) prop .Or V c V . i.e. L H Prop flown conventional counter clockwise .
HOWEVER ,
on grass , the away bit gets it chewing / skewing in the grass . Thus going nowhere . Unless the pilot walks parralel to plane . Unless the pit man lierally lets it go - drops it . from 2 inches over the grass .
Depending on when the grass was cut, its length, stickyness, and dryness . It can be quite slippery . Sometimes even people have been seen to slip on slippery grass .
I Figure for Tarmac or Concrette , W T H . Either small dia ( 40 thou.) wire runners , or alloy skids , or just replace the keels as they wear .
Concrette and ashpelt are often faily slippery , but vary also .
Obviously , a pair or two pir , of team race streamline wheels , or even a pair of ballon wheels , could be let into the float undersides. 3/16 or 1/4 protrusion .
But consider wheel housings shoulda be waterproof. With a receptical ( tubes ) for a replaceable axle . For waterproofing & maintanance .
