> Paul
> > I have attached 2 drawings in auto cad not very good but I think your smart
> enough to > figure it out what I have is a Long Ez with cessna 210 retracts on it you can
> see it > at www.myairplane.com click on construction log and then Tonyslongez anyway
> which of > these 2 drawings would work best for my application and I was wondering if you
> had > time to draw it 3-d so I can start modeling the intake
> > Thanks Tony
> > P.S. I hope to see you at oshkosh.
> > Hi Tony. for 2D drawings hit shift Print Screen on your keyboard.
> Load Windows Paint and press Paste.
> Save As jpg. Your 2D dwg will now be in jpg form which
> you can attach to your email messages. Saves a lot of work for me :)
> > Interesting idea you got there. Rule of thumb it takes about
> 600 cubic inches of rad volume to cool a rotary so a thick vertical
> rad 15 inches wide and 10 inches high would have to be about 4 inches thick.
> The first 1/3 of the rad does 3/4 of the cooling and the second
> half does 1/4 of the cooling. Another old rule of thumb.
> Not too good at our takeoff and climb speed ranges of around
> 80 120 MPH as it takes a lot of dynamic pressure to force air
> through a thick rad. It will work but you might not be happy
> on a hot day.
> > Modern highly efficient heat exchangers tend towards large frontal area with
> minimal thickness. This late model Dodge PU rad is a good example. So laying
> it down at an angle seems to be the best solution. I modified your drawing
> to show the dimensions and a slightly better configuration.
> > Paul Lamar

Tony, interesting idea with the CE-210 style retracts.  Be cautious about
using blue (styrofoam) on the nose and bottom of the airplane.  If you have
fuel leak with the aircraft parked on the nose, the fuel could work its way
down and eat up the foam.  The plans call for urethane foams on the bottom.
Cheers.
--Kent
Cozy IV flying
Long-EZ building--

Hi kent. Are you refering to the yellow foam that is called out for in the plans for the nose? I ordered the foam kits from Aircraft spruce I think it is the right stuff it is real easy to sand but makes a mess and sticks to everything. But if i recall that isn't fuel proof foam either. I pored some gas on it in  the trashcan and it turned to a nice yellow goo in about 3.5 secounds do i have the wrong stuff? I saw that E-Cobb was recomending that noses be built with blue foam it sands better and is a little more rigid than the yellow foam I was also thinking about fabricatiing a small stainless box to put my fuel selector valve in with a drain going out the bottom so if it should leak it'll go out the bottom of the airplane not drip down the nose.
I forgot to mention the foam is divinacell blue foam same stuff for the wings.
any thoughts Tony