Yes. It is an air chamber type, not the spring loaded = piston=20 type. Weighs less than a pound. I'm using it to = eliminate or=20 reduce the pulsations from the oil pump which may have contributed to = Rusty's=20 oil cooler failures. My oil cooler is a much modified evaporator = core and=20 the filter is a Peterson part.

Tracy

Is that a Moroso oil accumulator = Tracey?

Hans

On=20 Feb 1, 2006, at 10:23 AM, Tracy Crook wrote:

Not that the = purpose=20 built cowl will not work but I felt that fitting and optimizing all = the=20 systems was more straight forward and easier with the 'classic' = cowl. Not shown in the picture is the intake manifold which is = similar=20 to the one in my RV-4. It would stick out the side of the = purpose=20 built cowl. This is just one of many factors. = Also, I=20 think Will James who makes the purpose built cowl was still working = out the=20 rights to market it (it was originally for Powersport) when I got = mine.

Tracy

----- Original = Message = -----
From:= =20 Greg@itmack=20
To:=20 Rotary=20 motors in aircraft =
Sent:= =20 Tuesday, January 31, 2006 4:59 = PM
Subject:=20 [FlyRotary] Re: Cooling air = inlets

Tracy,=20 just wondering why you went for the "classic" cowl instead of the = Sam=20 James purpose built rotary = cowl?

Greg

Hi = John,
There=20 are no ballpark figures, only arguments about them : = )

FWIW,=20 I am using a Sam James cowl with 5" round inlets = and fervently hope=20 that they will cool my = 20B.

Tracy =20 (dangerously close to first engine=20 start)

----- = Original=20 Message = -----
From:= =20 John=20 Downing =
To:=20 Rotary=20 motors in aircraft =
Sent:= =20 Sunday, January 29, 2006 8:06 = PM
Subject:=20 [FlyRotary] Cooling air = inlets

I=20 am modifying the cowling for the Tailwind. The air inlet = holes=20 are 2 5/8"s x 7.5"s for a total of app. 21.5 sq. = inches. x=20 2 for a total of 43. I am looking at a 5 inch round hole = which=20 is the size that Same James is using for the O-320's, = which=20 would make the diffusers easier to fabricate. The round = 5 " hole=20 has approximately 19.3 sq inches x 2 for 38.6 sq. inches = total,=20 if my math is right. Is this a ball park figure for the = water=20 coolers (GM evaporators) on the Mazda 13 B engine. = JohnD<20B=20 = update.jpg>--
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