Subject: Re: [FlyRotary] Radiator coolant delta T --------------Boundary-00=_HQA4DL51VA4000000000 Content-Type: Multipart/Alternative; boundary="------------Boundary-00=_HQA48WA1VA4000000000" --------------Boundary-00=_HQA48WA1VA4000000000 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I promised to report my indicated water temps next chance I got. Here are some samples:=0D =0D OAT(F) Delta T (F)=0D 69 23=0D 66 19=0D 68 10=0D 75 14 =0D 65 15=0D 75 7=0D 77 12=0D =0D All figures are in cruise at 8,000 to 10,000 MSL. Last reading was in climbout, but not much difference. I really can't explain the range of readings, but that is what it read!=0D =0D I adjust the cowl flap to keep the oil and coolant temps in the 190's. T= his is a compromise between the 180's I would prefer, and the turbulence off = my cowl flap at more open positions. (I know - there has to be a solution, = but right now I am just enjoying flying!)=0D =0D This was on the way to and from the Land of Enchantment RV Fly In at Las Cruces. There were close to 175 RVs there, and I was ONLY non-lyc engine= in the crowd (that I know of). Your rotary ambassador removed the top cowl = for the event, and needless to say, it drew the usual crowd. I am always ama= zed at how many are interested in this engine and follow this list!=0D =0D Sure would like to be at Shady Bend, but work keeps getting in the way of the fun stuff.=0D =0D Bill Eslick=0D N268BL 228 HRS=0D http://www.homestead.com/eslickaerospace/=0D =0D PS Had a chance to take a good look at the rotary powered Dyke Delta. I= forget the gentleman's name, but he is deep into solving cooling problem= s. He has replaced the evaporator cores with stacked aftermarket oil coo= lers (I think that is what they were), and is modifying the cowl inlets a= nd outlets searching for some airflow. The "lifting body" configuration = of the Dyke presents additional challenges in this regard! --------------Boundary-00=_HQA48WA1VA4000000000 Content-Type: Text/HTML; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I promised to report my indicated water temps next chance I got. Her= e are some samples:

OAT(F) Delta T (F)

69 &nb= sp; 23

66 &nb= sp; 19

68 &nb= sp; 10

75 &nb= sp; 14

65 &nb= sp; 15

75 &nb= sp; 7

77 &nb= sp; 12

All figures are in cruise at 8,000 to 10,000 MSL. Last reading= was in climbout, but not much difference. I really can't explain t= he range of readings, but that is what it read!

I adjust the cowl flap to keep the oil and coolant temps in the 190'= s. This is a compromise between the 180's I would prefer, and the t= urbulence off my cowl flap at more open positions. (I know - there = has to be a solution, but right now I am just enjoying flying!)

This was on the way to and from the Land of Enchantment RV Fly In at= Las Cruces. There were close to 175 RVs there, and I was ONLY non-= lyc engine in the crowd (that I know of). Your rotary ambassador re= moved the top cowl for the event, and needless to say, it drew the usual = crowd. I am always amazed at how many are interested in this engine= and follow this list!

Sure would like to be at Shady Bend, but work keeps getting in the w= ay of the fun stuff.

Bill Eslick

N268BL 228 HRS

http://www.hom= estead.com/eslickaerospace/

PS Had a chance to take a good look at the rotary powered Dyke= Delta. I forget the gentleman's name, but he is deep into solving = cooling problems. He has replaced the evaporator cores with stacked= aftermarket oil coolers (I think that is what they were), and is modifyi= ng the cowl inlets and outlets searching for some airflow. The "lif= ting body" configuration of the Dyke presents additional challenges in th= is regard!

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