The CLOD Merlin is overly critical in the climb with Oil and Rad Temps especially in the Spit MKII IMO.
This works for me:
Before start Prop pitch 3 blips back from full fine ... will give you 2850 in the climb.
1. After start Smooth idle Rad Closed till 60C Coolant. (no increase in throttle at all till 60C RAD ... thanks Klem))
2. At 60C Rad Full open.
3. Get airborne ASAP get to Climb IAS (160 ASAP)
4. Climb +9/2850 (Spit II) +6/2850 Spit MKI at 160MPH
5. Eyes on Oil Temp and Rad
6. Dont exceed 95C Oil, 120 Rad
7. If Oil temp at 95C Set RPM 2400 (or less) till Oil temp under control (94C is ok)
8. If Rad temp 120 set Boost +6(Spit MKII) +4 Spit MKI immediately (Aim for max 110C in the climb)
If >120C Rad you WILL get engine damage almost instantly.
if > 95C Oil Temp you most likely will get engine damage.
Oil temp main variable is RPM
Rad Temp main variable is Boost.
Dont exceed 2850RPM at any time.
Using these techniques in a spit MKII you can climb all the way to 17,000ft without issue. With perhaps a single
adjustment to RPM and Boost.
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