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GPS Notes

Posted 02-26-2014 at 05:39 AM by nickyd

Originally Posted by nickyd View Post
More questions about " return to home" please

1. Manual states throttle must be at 10% to set rth. So I need to flick my rth switch on/off during spool up?
1.a. Is there any led indication that the rth has then been accepted successfully ?

2) rth brings heli back to a "fail-safe" altitude. Can this altitude be user configured? Is it the same as the deck altitude?

3. What happens...
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Old

sk720 back from re-calibration

Posted 02-26-2014 at 05:34 AM by nickyd

sk720 back from re-calibration (5 days from sending receipt of postage!!)
.
fitted with thinner baseplate(as previous baseplate was slightly magnetic) and sk black foam.
previous settings loaded. SL at 100%
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Old

GPS + Re-calibrated 720 + DX7 LAYUP

Posted 02-24-2014 at 06:50 AM by nickyd
Updated 03-05-2014 at 06:54 PM by nickyd

old DX6i settings:
Trav adj
Thr down78 up 100
El ail pit 125
Ru gyro 100
Gyro 0 48 1 53
Throtl 30% , 70% and 100% for castle gov
2 servi 90 deg
Rudd - rev
Throt hold -2
Timer 5:30

Georgi Post on DX7 setup for GPS:
http://www.helifreak.com/showthread.php?t=504444&page=4
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Old

15-02-14

Posted 02-15-2014 at 08:25 AM by nickyd

4 flights. cyclic feels perfect.
Set 30 expo on tail in SK
30 expo on cyclic.
Blades quite loose in holders
one battery is dying. see vibe on skids as rpm drops at end of flight.
Vibe score=0.4 . on examination is very low (0.2 at 2600)but with spikes when flipping inverted. could this be the loose blades?
SL set to 150% . works fast but theres a big lean to left after doing flips and rolls.

Video is perfect. Best ever with no occasional shudder...
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Old

11-2-14

Posted 02-11-2014 at 07:30 AM by nickyd
Updated 02-14-2014 at 05:18 AM by nickyd

set SK:
reduce control rates to 210/240 as default /bell gain goes down automatically).
reduce cyclic gain to 50 default.
check self tune bell again.
hd down to 75.

set Tx:
Expo: set cyclic to 25 (was 20) . Set Tail to 30 (was 40)
DR: set both banks to 100%

Flight good but roll a bit slow. need to up the rates. may need more expo on cyclic in this case. vibe 0.4 at 2800

next test E/A 230/260 with 30 Expo. Heli and tx configured...
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