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Old Oct 23, 2011, 11:37 AM
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The Netherlands, NB, Eindhoven
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Originally Posted by StarHopper44 View Post
While we're comparing Tx pix, this ('cept for the hula skirt) is the 6-ch unit I got from HK with my RTF Bix - the HK6DF. Any Bix owners get something different?
You really got the HK6DF with the RTF? Then you must be one very lucky guy

I only got a 4 channel Tx, which it also says in the product description:
http://www.hobbyking.com/hobbyking/s...ft_Radio_.html
Everything is the same as in the picture there, just the charger is different from the one in the picture. I can post some pictures when I get my camera later if you want?
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Old Oct 23, 2011, 11:44 AM
Earthbound Skyhound
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United States, NC, Richlands
Joined Jun 2011
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[QUOTE=2500GENE;19672248 ...I need to get a new bathing suit, my old one has a hole in the elbow.
Philm at 11.[/QUOTE]

I keep TELLIN' ya, that hole is where your head goes thru, and those are sleeves, not the suit legs!
Which is largely why they made you leave Florida the last time!!
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Old Oct 23, 2011, 12:01 PM
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United States, NC, Richlands
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Quote:
Originally Posted by Rennuh View Post
You really got the HK6DF with the RTF? Then you must be one very lucky guy

I only got a 4 channel Tx, which it also says in the product description:
http://www.hobbyking.com/hobbyking/s...ft_Radio_.html
Everything is the same as in the picture there, just the charger is different from the one in the picture. I can post some pictures when I get my camera later if you want?
Well, it'd be good (for thoroughness) to have some reference for the 4-ch version, I guess.

EDIT: Woah back, Nellie! I remembered it wrong - I got the ARF, not RTF version....and specified the 6-ch from the 'recommended gear' add-on at the bottom of the 'Includes' list. .....knowing I intended to use it on future planes once separate receivers became available.
Sorry for the misstatement....my freakin' memory is just a memory.
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Old Oct 23, 2011, 12:14 PM
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Originally Posted by Eagle202 View Post
My SS had the same painted visor on the pilot. No face. I attached a few more pix including the info on the box stating my blade is a 5 x 8. It does measure 5 inches but heck if i know how to determine if the 8 is correct.
Vince
IIRC, we discovered some time back the 5x8 is apparently a typo on the box; should be a 5x3. (Someone please correct me if that's wrong.) 8" pitch would seem to be a li'l drastic for this plane, seeing as how a 6x4 will stress the 20A ESC if ran too hard.
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Old Oct 23, 2011, 12:30 PM
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United States, FL, Clearwater
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Originally Posted by StarHopper44 View Post
IIRC, we discovered some time back the 5x8 is apparently a typo on the box; should be a 5x3. (Someone please correct me if that's wrong.) 8" pitch would seem to be a li'l drastic for this plane, seeing as how a 6x4 will stress the 20A ESC if ran too hard.
I didn't see any link on the 1st page of this thread on how to determine the difference between the 3" and 8" pitch? Is there an easy way to measure it?
Vince
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Old Oct 23, 2011, 12:44 PM
Space is the answer
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Australia, VIC, Warneet
Joined Mar 2011
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Quote:
Originally Posted by protocol View Post
Hey fps,

I use Detrum GY48v on my PZ P-51 on windy days, but plan on adding one to my Bixler. I turn it on to 30% rate mode using my gear switch on TX:
http://www.hobbypartz.com/60p-dy-1017.html

... just a cheap gyro with headlock and rate mode, you'll need rate mode for an airplane, headlock isn't much use.

I don't know anything about the HK ones, but this thread has all the info needed: http://www.rcgroups.com/forums/showthread.php?t=1035605
From the link you provided I see that the GY48v is also described as a headlock gyro and you are using it successfully on your PZ P51 yet AJ seems to have concerns about using headlock gyros. Do you think that the one I just purchased (hasn't arrived yet) from Ebay, the Esky EK2-0704B will work or is it different to your one?

http://www.ebay.com.au/itm/ESky-0008...d=275905387104

BTW Dont worry too much about Flypoppas comments on gyro's
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Old Oct 23, 2011, 12:44 PM
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Eagle, I suppose you could approximate it. If you measure the difference in height between the leading and trailing edge of the prop and multiply by 5*pi (5 being the diameter of the prop) then you should get the pitch per rotation. Let me find a ruler and I'll get back with some numbers.
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Old Oct 23, 2011, 12:51 PM
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United States, CA, Sebastopol
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Originally Posted by Dkumagai View Post
Eagle, I suppose you could approximate it. If you measure the difference in height between the leading and trailing edge of the prop and multiply by 5*pi (5 being the diameter of the prop) then you should get the pitch per rotation. Let me find a ruler and I'll get back with some numbers.
This guestimation would probably work pretty well, as the difference between 3 and 8 is pretty extreme.
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Old Oct 23, 2011, 01:09 PM
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United States, WA, Seattle
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Hey StarHopper, I took a top down of my fuse for you. My motor is out about 2 or 3 degrees, this is why I wanted to split my fuse and correct it. Even though the off mounting angle supposedly serves some purpose, I would prefer it to be close to centered.

The strapping tape on all of the control surfaces is my doing. Waiting for the rest of my parts to come in the mail is killing me, I'm having to do little mods here and there to tide me over.

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Expoxied a 4mm CF rod in my spar last night.
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Old Oct 23, 2011, 02:03 PM
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United States, WA, Seattle
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I came up with 0.337"*5pi ~ 2.6". It's a 5x3.
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Old Oct 23, 2011, 02:48 PM
Just Me
United States, OR, Salem
Joined Apr 2006
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Originally Posted by ozair View Post
.....the GY48v is also described as a headlock gyro.....

The GY48V comes setup as a HH (I have a couple of these) But it can also be used as a Rate gyro. You need a toggle switch on your transmitter to switch back and forth from HH to Rate. I've set the gains on HH to zero so that effectively shuts the gyro off in that mode. It's fully described in Melnic's thread.
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Old Oct 23, 2011, 04:16 PM
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Quote:
Originally Posted by Dkumagai View Post
I came up with 0.337"*5pi ~ 2.6". It's a 5x3.
Ok. Thanks for the info.

I measured between 10 & 11 32ths so lets make that about 0.33" which is what you got. So i have the same blade.

I also see that an 8" pitch would be a much bigger blade.

Thanks for everyone's input on this.
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Old Oct 23, 2011, 05:32 PM
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Originally Posted by ajbaker View Post
Oops. That is a headlock gyro. I do not know if it will run as a rate gyro. The only gryo I have used is the EK2-0704 (note: NO "B") which is a rate gyro. It looks like THIS. They are getting hard to find. There are a couple of rate gyros from HK. But, I have never used them and I know nothing about them. Anybody have any feedback to help ozair??
AJ
UPDATE: This might help. I have never tried it.
http://www.rcgroups.com/forums/showthread.php?t=1051219
I'm hopping in and out of this as it moves so rapidly. If this has been answered sorry, but I use these (Turnigy TG380)http://www.hobbyking.com/hobbyking/s...ontrolled.html
on my bixler and some others. Works fuss free and it can be connected to a spare channel to switch on and off if you want.
Hope this helps
Luke
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Old Oct 23, 2011, 06:04 PM
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I'm not an expert in aerodynamics. But I'm sure there are dimishing returns on increased prop pitch. Beyond a 45 degree blade angle I would imagine the prop slapping the air more than slicing through it and pushing the air radially (away from the hub) rather than perpendicularly. I'm curious how much more thrust a 6x4 prop provides and if it causes significantly greater stress on the motor. I wonder what a 5x8 would even look like and what its performance might be.
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Old Oct 23, 2011, 07:38 PM
The figure "9" Specialist
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A Barrier Island in New Jersey, USA
Joined Oct 2003
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Quote:
Originally Posted by Dkumagai View Post
I'm not an expert in aerodynamics. But I'm sure there are dimishing returns on increased prop pitch. Beyond a 45 degree blade angle I would imagine the prop slapping the air more than slicing through it and pushing the air radially (away from the hub) rather than perpendicularly. I'm curious how much more thrust a 6x4 prop provides and if it causes significantly greater stress on the motor. I wonder what a 5x8 would even look like and what its performance might be.
Not that it's particularly relevant to a 5" or 6" prop, but I used to fly U/C combat with 7x8 and 8x8 props (2 different classes) and I can tell you, there is a load of difference in speed compared to the same diameters with 6" pitch!

Aeronca
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