Killratio wrote:No problems mate...you are not upsetting anyone! With the language, I tend to use some obscure wording at times, so I do try to answer people who's first language is not English fairly briefly and that can come across as "annoyed". I isn't, I assure you.
Again I can't replicate over 2600 at coarse pitch and +4 at cruising altitude. I am sure you know that with the DeH BACK is fine pitch. Let me do some more testing to see if I can get your results.....but as I said, wih an effectively fixed pitch prop..you can't necessarily use all settings under all conditions.
Not sure why you are getting severe engine wear (even higher than it is with the bug, for me) maybe we could catch up on line sometime?
Yes, a couple of goes is all you should get without the trolley acc.....and that is pretty much what I get. Again, something seems off with your setup if you get significantly more ( depends on OAT as well)
regards
Darryl
the result of 35hrs level cruise flight above 15-16000ft
"35hrs life of the mkIII (spitfire mkIa)
77 76 77 77 79 77 79 78 79 76 76 76 - 0.0hrs
Weybridge wooden propeller, flat canopy (87+normal oil)
75 74 74 74 74 75 73 74 71 71 74 71 - 1.7hrs
73 71 73 71 71 70 73 70 71 69 71 69 - 2.4hrs
68 65 66 68 69 68 69 69 67 66 69 66 - 3.6hrs
blown canopy
64 64 64 65 65 64 64 64 64 62 63 63 - 4.8hrs
59 58 61 59 57 60 57 61 59 57 57 57 - 6.1hrs
-main bearings yellow
56 54 55 52 53 56 53 54 54 52 55 52 - 8.0hrs
52 48 50 47 48 49 50 51 49 47 47 47 - 8.9hrs
-coolant leak, main bearings red
43 43 42 42 41 46 42 42 42 41 43 41 - 9.5hrs
-oil leak, cylinders yellow (some cracking on cylinder head crowns)
79 83 81 71 79 81 75 74 83 71 74 81 - 9.5hrs -->> "9.5hrs"
+replaced all cylinders, main bearings
-still minor oil, coolant leaks
De Havilland propeller
70 73 74 64 69 73 70 66 74 64 69 74 - 12.1hrs
66 68 71 60 66 70 62 60 69 59 63 70 - 12.8hrs
-major coolant leak(red), minor oil leak
61 67 66 56 63 66 60 57 64 55 60 66 - 13.5hrs
flat canopy again
57 61 63 51 58 60 56 55 60 51 56 62 - 14.7hrs
-bad oil leak(red), major coolant leak(red)
52 57 59*46 54 59 51 50 55 47 52 58 - 15.3hrs
cylinder 4 yellow
+coolant leak fixed
+oil leak fixed
blown canopy
49 53 53*44 49 51 48*45 54*43*48 53 - 15.7hrs
cylinder 4,8,10,11 yellow
-main bearings yellow
43 46 47 38 44 47 43 38 47 37 39 47 - 16.7hrs
cylinder 1,2,3,4,5,6,7,8,9,10,11 yellow
-main bearings yellow
36 41 40 30 37 38 36 33 40 30 33 40 - 18.6hrs
cylinder 1,2,3,4,5,6,7,8,9,10,11,12 yellow
-main bearings yellow
21 23 24 14 21 24 20 16 25 14 17*25 - 18.9hrs
cylinder 1-11 red; 12 yellow
-main bearings red
-supercharger red
-coolant leak yellow (123C)
-radiator yellow
83 76 83 79 80 74 75 74 73 74 82 71 - 18.9hrs -->> "9.4hrs"
+replaced all cylinders, main bearings
+supercharger replaced
+coolant leak fixed
-radiator yellow
77 70 77 75 72 68 71 72 66 68 75 66 - 20.1hrs (under 110C coolant)
-oil leak yellow
+oil leak fixed
+radiator fixed
74 69 73 71 72 64 69 67 67 66 72 64 - 21.6hrs
76 69 73 71 71 65 67 68 65 65 70 63 - 23.6hrs
71 65 68 68 68 61 68 65 61 63 71 60 - 25.2hrs
72 66 70 68 65 60 63 65 59 61 70 59 - 27.5hrs
70 66 68 64 64 59 63 63 59 60 66 58 - 29.5hrs
-oil filter yellow
-fuel filter yellow
-air filter yellow
68 60 64 64 61 57 62 59 57 58 64 56 - 31.4hrs
66 60 60 60 60 53 58 59 53 55 60 53 - 32.7hrs
+oil filter replaced
+fuel filter replaced
+air filter replaced
Weybridge wooden propeller
-main bearings yellow
62 57 61 56 58 53 53 54 53 52 59 50 - 33.2hrs
-main bearings yellow
De Havilland propeller
57 49 54 52 51*47 51 49*45 47 53*46 - 34.1hrs
-main bearings yellow
-coolant leak yellow
55 48 49 49 49*43*47*47*41*43 51*41 - 35.2hrs
-main bearings red (we have some loose valve seats)
-coolant leak yellow
73 75 72 71 72 79 74 76 75 78 82 80 - 35.2hrs -->> "16.3hrs"
+replaced all cylinders, main bearings
+coolant leak fixed
At the begginings i used mostly 15C oat..
then later below 10C oat, and i was very careful with the coolant to never reach above 110C during climbing
some notes..
-start the engine and taxiing to active when the coolant starts to rise above 105C -> shut down and wait for 80C
-start again (clear out the plugs), then make a mags check
-BEFORE coolant reach 90-92C start the take off process
(3-4psi max with full fine pitch)
-climbing with 2600rpm (dehavi 2pitch vari.) 2,5-3,5psi -> coolant under 110C (105-107C)
-cruise with 0psi and full coarse pitch - lean out
-decent with -1psi (max -1,5psi) with full coarse
radiator flaps at high "normal" , below 15000ft with 1,3 and speed is minimum 200mph -> 210,220 at higher altitudes"