E-Racer Strake Materials

[King Racer]

My E-Racer construction manual (Chapter 12) calls for 5 mm red PVC foam for top and bottom surface of the strakes and 0.25" Klegecell or PVC foam for the baffles. Would 0.25" divinycell (3 lbs/cuft ? or 6 lbs/cuft ? or 15.6 lbs/cuft ? - density is not specified in plans) be the correct material/density to use for the E-Racer strakes?

 

Thanks

[Richard Schubert]

I believe the stuff you want is the H45 3lb

http://www.airchttp://www.aircraftspruce.com/catalog/cmpages/divinycellfoam.php

It comes in the right sizes. The 3lb density is more flexible than the heavier stuff and will conform to the curves better when you bend it.

[Richard Schubert]

Sorry, Here is the correct link

 

http://www.aircraftspruce.com/catalog/cmpages/divinycellfoam.php

 

also

 

My copy of cozy mk3 plans shows H45 PVC .35 in. thick for these parts.

 

My e-copy of cozy Mk4 plans shows H45 PVC 3/8" thick

 

I believe the 5mm (.196 in.) PVC has been discontinued except in the 18# weight,

[rickh]

I've the Divinicel "H" grade tech manual, no mention of colors, nada.

Like Mr. Schubert said, the Cozy uses 3/8" H-45 for the strake skins and inner bulkheads.

 

Try www.fiberglasssupply.com ? They cater to the hydraulic crowd (surf boards), but their website lists several thicknesses and grades of Divinicel. No connection, but I have ordered other stuff from them in the past.

 

Rick