10-11-2012, 01:02 PM
NEW EDF UNIT INSTALLED 68MM 4S 3580KV .
bench tested at 1005 watts peak , setting to about 880 w 66 amp peak , constant 60amp. i'm so glad the factory fitted a 70amp esc instead of the advertised 60amp esc .
should be good for upto 4 minutes of safe flying .
balances out at 65mm C of G , instead of the manuals 75mm , ( which is wrong ) rc threads are saying 62 to 65mm is correct for this panther .
WHAT DIFFERENCES DID I NOTICE .
to look at the edf units factory 3S 68MM 4370KV 500W 5 BLADE looks exactly the same as the 4S 68MM 3580 KV 880W 5 BLADE SYSTEM . turning the blades by hand the factory motor is very loose , where as the 4s motor is notchy showing strong magnets . thrust wise they sound the same , and only about 10% more thrust at a a guess . the 4s unit will hover stationary and with a little verticle throw it will climb , where as the 3s was just shy of this .
both the edf units are made by lander . the 4s 4000mah compact battery still requires 60 grams of lead under the nose cone to get the 65mm C OF G . 4500MAH 4S COMPACT MIGHT NEGATE THE NEED FOR LEAD .
AS per usual . i have noticed that factory PNF units are under powered and struggle on full throttle for power to weight . i dont know why they do this . 4s Should be standard for this , and 5s/ 6s as an upgrade .
Time to gop and see how it flies . hopefully hand launching might be a fair bet now .
bench tested at 1005 watts peak , setting to about 880 w 66 amp peak , constant 60amp. i'm so glad the factory fitted a 70amp esc instead of the advertised 60amp esc .
should be good for upto 4 minutes of safe flying .
balances out at 65mm C of G , instead of the manuals 75mm , ( which is wrong ) rc threads are saying 62 to 65mm is correct for this panther .
WHAT DIFFERENCES DID I NOTICE .
to look at the edf units factory 3S 68MM 4370KV 500W 5 BLADE looks exactly the same as the 4S 68MM 3580 KV 880W 5 BLADE SYSTEM . turning the blades by hand the factory motor is very loose , where as the 4s motor is notchy showing strong magnets . thrust wise they sound the same , and only about 10% more thrust at a a guess . the 4s unit will hover stationary and with a little verticle throw it will climb , where as the 3s was just shy of this .
both the edf units are made by lander . the 4s 4000mah compact battery still requires 60 grams of lead under the nose cone to get the 65mm C OF G . 4500MAH 4S COMPACT MIGHT NEGATE THE NEED FOR LEAD .
AS per usual . i have noticed that factory PNF units are under powered and struggle on full throttle for power to weight . i dont know why they do this . 4s Should be standard for this , and 5s/ 6s as an upgrade .
Time to gop and see how it flies . hopefully hand launching might be a fair bet now .
patience !! paaatience !! paaaaaatience paaaaaaatieeence dooooohhhh !!!
DANGER WIFE CAN READ FORUMS . love you darling . sig changed .