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This thread is privately moderated by crxmanpat, who may elect to delete unwanted replies.
Jan 12, 2010, 05:50 PM
Foam abuser!
crxmanpat's Avatar
Thread OP
Not really. The extra weight just about totally negates increased performance. All it really does is give me about 1 more minute of duration.

On these 15-20oz parkjets using the 2212-6 motor, I really love using a Hyperion 3S 25C 1300 pack. It's light, but packs a real punch. Gives me 5 minutes of spirited flying, which is just about right for these (after that I start to get bored ).

Pat
Last edited by crxmanpat; Apr 23, 2013 at 05:53 PM.
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Jan 13, 2010, 08:45 PM
Slow Flyer
Bombay's Avatar
Servo positioning.

Pat:
I see that you install your servos quite a bit forward of the spar...while other folks install theirs over the spar. Do you install them that far forward in order to angle over towards the aileron horn or for CG or other reasons?
Rob
Jan 13, 2010, 11:34 PM
Foam abuser!
crxmanpat's Avatar
Thread OP
Well, my thing is that I try to put them as far forward as possible for two reasons:

1 - I want to keep the servo wires forward as much as possible to keep them out of the prop.

2 - I usually have to put the lipo as far forward as possible to make the CG. Having the servos forward helps (a little anyway).

The control rods can be supported half way back to keep them from flexing.

Pat
Last edited by crxmanpat; Sep 07, 2010 at 11:37 AM.
Jan 14, 2010, 09:32 AM
Minister of R/C
RC4Tom's Avatar
Pat... You have some great points. I will have to consider during my next foamy build.
Last edited by RC4Tom; Jan 19, 2010 at 01:33 PM.
Jan 18, 2010, 08:43 AM
Registered User
TheTrashMan's Avatar
is 25c better than 20c on a parkjet?
Jan 18, 2010, 03:36 PM
Foam abuser!
crxmanpat's Avatar
Thread OP
I think we got you covered on that on the F-22 thread.

Pat
Jan 27, 2010, 06:19 PM
Registered User
TheTrashMan's Avatar
would these be good on a park jet,for push rods?


http://www3.towerhobbies.com/cgi-bin...?&I=LXPJX9&P=0
Jan 27, 2010, 06:35 PM
Foam abuser!
crxmanpat's Avatar
Thread OP
Yeah, that would work, but it's a little bigger than what I typically use. I use:

DuBro Mini E/Z connectors (for the servo arm)

DuBro Micro E/Z Link .047 (or some other company's equivalent, I always seem to have some GWS leftovers on hand)

Control rods are just .047 piano wire for the bigger planes, and .039 for the smaller ones that you can get at the hobby shop, or at some Ace Hardware stores. And if the wire needs any bracing between the servo and control surface, I just use some spare servo arms and ream out the hole for the wire, then glue it in somewhere in between.

Pat
Last edited by crxmanpat; Sep 07, 2010 at 11:36 AM.
Jan 27, 2010, 07:14 PM
Registered User
TheTrashMan's Avatar
if i use the bigger ones will it be stronger?
Jan 28, 2010, 03:42 PM
Minister of R/C
RC4Tom's Avatar
The bigger aren't really necessary for the speed you will be flying. I have the mini ez connectors on a X-41 Depron Foam Jet that does about 115+ mph with no problems.
Jan 28, 2010, 03:45 PM
Registered User
TheTrashMan's Avatar
i mean the rod its self.
Jan 28, 2010, 04:10 PM
Slow Flyer
Bombay's Avatar
Quote:
Originally Posted by planeflyer94
i mean the rod its self.
If it doesn't bend when you exercise the control surfaces then you are fine. If it bends, either use the pushrod guides that pat recommended or go with heavier wire. However, the lighter the better in this particular instance.
Jan 28, 2010, 05:23 PM
Registered User
TheTrashMan's Avatar
Quote:
Originally Posted by Bombay
If it doesn't bend when you exercise the control surfaces then you are fine. If it bends, either use the pushrod guides that pat recommended or go with heavier wire. However, the lighter the better in this particular instance.
ok great thanks!!!
Jan 29, 2010, 04:26 PM
Registered User
profilefan's Avatar
Quote:
Originally Posted by HeliTB
The bigger aren't really necessary for the speed you will be flying. I have the mini ez connectors on a X-41 Depron Foam Jet that does about 115+ mph with no problems.
Whats the power setup you use to acheive this speed?

Thanks,
Steven
Jan 30, 2010, 09:55 PM
Minister of R/C
RC4Tom's Avatar
profilefan...I used a Don's Wicked 3000kv motor with an apc 4.1x4.1 powered by a 4s 2150mAh 20C battery.


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