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HomeAircraftHelicopterFuel-Helicopters New or Limited ActivityAirstar › Another proud owner! Mongoose
10-28-2011 04:47 AM  6 years agoPost 21
glover1482

rrNovice

Flying Field

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My 12FG Mongoose curves
Stock G26 motor 810 blades, non-driven tail Pitch range -12 to +12

Throttle:
Hover mode: 1 +0; 5 +11; 9 +20; 13 +29; 17 +100
Sport mode: 1 +100; 5 +31; 9 +25; 13 +31; 17 +100
Acro mode: 1 +100; 5 +33; 90 +27; 13 +33; 17 +100

Pitch:
Hover mode: 1 -35; 9 +0; 17 100
Sport mode: straight line -100 to +100
Acro mode: straight line -100 to +100

On my curves, any point not noted has been "nulled".

Note that I normally fly with governor active, but these curves work well for my toy.

I sport fly (FFF with occasional roll, loop, flip) at about 250 feet ASL.

Additional questions, post here, email or PM.

Fly safe, Glover

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10-28-2011 06:10 PM  6 years agoPost 22
AtTheCross

rrVeteran

Southern CA

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Hey Glover,

trying to understand your curves, not familiar with your radio, but looking at your numbers does your radio have 17 points of adjustment and you're giving the 5 points that you adjust and null out the rest that you are able to adjust but do not?

also wondering at point '9' on all your throttle curves which i'm taking is your mid stick you don't have the same number set.

it was my limited understanding that the center stick number should be the same in all flight modes, am i misunderstanding something?

regardless, thanks for sharing your curves. what HS are you running? and what gyro?

one more thing, in your hover setting what pitch are you getting with your -35 setting?

ASI Green Mongoose CY29RC - 67 flights

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10-28-2011 07:04 PM  6 years agoPost 23
glover1482

rrNovice

Flying Field

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Yes the 12FG offers 17 curve points. Almost always, I null points that I deem to not be needed (some sailplane crow settings use lots of points on elevator) rather that mess around in an anal attempt to get curves way to exact. My skills would never appreciate the effort.

My hover point is set for about 65 (35 percent when inverted in sport and acro modes) percent on all curves. I understand that "true switchless hover" should be at 75 percent, but all of my helicopters hover in the 65 to 70 percent range. (I have used this scheme since my very first helicopter flight.)

I "tweak" my curves to get a minimum reaction when switching flight modes, but am never upset at a slight elevation change. Heck, I can not hold my sticks completely steady when I flip any switch... Curtis Youngblood is am not!

I will typically switch flight modes from "hover" to "sport" before lift off; and unless doing an autorotation, I will switch to "hover" at the start of my landing approach.

By "what gyro" I assum that you are asking about my governor... so the governor is a used GV-1 that I snagged in the classified forum. I have used a pair of rpm sets: 1280, 1340, 1400 and 1370, 1450, 1530; and as I suffer from "oldtimers" I do not remember which set is currently installed.

I actually do not know the hover curve pitch at -35. My process is to start at -50 and then adjust that point until I have smooth control out of hover and down to landing. (A high wind flight will prompt me to adjust that point down prior to the start of a flight because of the extra lift generated by strong winds.)

I hope this helps... if not then I'll try to be more clear in future responses.

Fly safe, Glover

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10-28-2011 07:22 PM  6 years agoPost 24
AtTheCross

rrVeteran

Southern CA

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Hey Glover,

nope, that was perfect in explanation. although i was actually asking about your gyro, i do appreciate your gov1 response

ASI Green Mongoose CY29RC - 67 flights

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10-28-2011 07:37 PM  6 years agoPost 25
glover1482

rrNovice

Flying Field

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Gyro
Futaba 401 with gain at 35 on all flight modes. I rarely attempt reverse flight, so a 401 works just great for me.

Fly safe, Glover

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10-28-2011 08:03 PM  6 years agoPost 26
glover1482

rrNovice

Flying Field

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Malorie throttle linkage
Oh, I should mention that my throttle linkage is as near to the linkage suggested in the "Malorie" discussions as I could get it. This helps by making some of the throttle expo mechanical. This is not completely necessary as it can be accomplished by the throttle curves, however I like to use this mechanical setup with petrol engines in helicopters and planks. The Malorie linkage works a charm for me.

Fly safe, Glover

Malorie link on the "freak" site http://helifreak.com/showthread.php?t=154844

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