George Lendich wrote:

 > Cruise at full throttle 9500ft temp. 10 degrees C [50 F]. 6400 rpm leaned
past peak

rpm. 130knots on the ASI. 30 liters/hr. [8 GPH] average included 1hr

very low level

OS  temp. 40+ d. C. [104 F]  Engine temps up top 90 {194 F] oil 85 [185

F] coolant.

Near ground 90 [194F]
and 90. Climb limited to 500fpm. Rather warm in the cab during the low

level

bit.
Fuel economy definitely suffers with increase in outside temps. I get

around

26 liters/hr  [6.5 GPH] in the cooler months.
Ian. Broome Australia.

BTW Ian's PSRU is  2.85:1 Ross.

What in the devil are you doing in the middle of the outback in the
middle of the summer?  I hope they are paying you a lot Ian :)

Ian,
I'm trying to help the 80% scale Spitfire Supermarine guys (here in Brissie)
get a 13B install sorted out, so I have some questions please.

Full power at cruise at 6,400 rpm and PSRU ratio, gives 2245 prop rpm, what
size prop are you running.

Is your take-off at 6,400 RPM, or are you running higher rpm for take-off.?

What size oil and water radiators are you running?

What engine management system are you using?

If your ever in Brissie let me know and I'll get the boys to have a gander
at your install

I'm hoping to get over to WA to see Don Dunbar and others hope I can have a
gander at yours set-up as well.
Keep-up the good work!!
George (down under) Brissie

 
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