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ParkZone Habu Hop-ups

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ParkZone Habu Hop-ups

Old 11-30-2011, 02:17 PM
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Default ParkZone Habu Hop-ups

The original ParkZone Habu is a very impressive and versatile design. The video below shows the stock Habu taking off from some very bumpy grass. I used to hand-toss the Habu and belly land it in grass so it would fly without the gear showing. It only takes a few minutes to install the gear mains and steerable nose wheel for pavement take-offs. The model flies very stable and has sufficient power with the stock 4s setup.

I plan several hop-ups to my original Habu this winter. Please feel free to post your own Habu hop-ups here as well.

Hopups:[ul][*] 5s Power System upgrade[*] XPS Laser cut retract [link=http://www.xtremepowersystems.net/proddetail.php?prod=XPS-LCHABUKIT&cat=34]kit[/link][*] HET [link=http://www.ejf.com/index.php?main_page=index&cPath=70_96_143_205]F104[/link] Tip tanks.[*] General Appearance Changes[/ul]
[link=http://www.gregcovey.com/reviews/PZHabuOnGrass.wmv]Stock ParkZone Habu on Grass Video[/link] (8meg)

photos by "Papa Jeff" Ring
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Old 11-30-2011, 02:43 PM
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Default RE: ParkZone Habu Hop-ups

My first hop-up for the Habu upgrades the stock power system. By swapping out the ESC and adding a cell, you can easily boost the power level from about 700 watts to 1200 watts.

I replaced the stock 12.3oz E-flite 4s LiPo pack with a 17oz Turnigy [link=http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=16595]3300mAh[/link] 5S 30C Lipo Pack. The stock E-flite 60-amp ESC was replaced with a Castle Creations ICE 75 ESC. The higher rated ESC is needed because the full throttle current is over 60 amps. The stock motor and fan can be left as is.

To help compensate for the weight increase, the ESC and receiver positions were swapped. I discovered that with a minor cut in the foam, the ICE 75 ESC could sit inside the air flow channel between the cockpit and the fuselage bottom exit through the wing. Full throttle current should be around 65 amps so the ICE 75 ESC can easily handle these bursts with some air flow.
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Old 11-30-2011, 02:58 PM
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Default RE: ParkZone Habu Hop-ups

By making a minor cut in the fuselage foam where the wires exit the battery pack, the Turnigy 5s 3300mAh pack fits in the stock battery bay perfectly. I decided to try the mate to the Turnigy bullet connector on my ICE 75 ESC. In this manner, the pack can be left unmodified.

Note that the extra motor wire length was folded back on itself and secured with a cable tie.

I cut a small area in the side for the pack connectors to sit when plugged in (or armed). The canopy fit in place nicely.
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Old 12-01-2011, 10:56 PM
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Default RE: ParkZone Habu Hop-ups

Lets see a video Greg!
Old 12-03-2011, 05:32 AM
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Default RE: ParkZone Habu Hop-ups

In upstate NY, our normal flying season is from May through October. We do, however, fly off the snow on floats over the winter months. The 5s power system upgrade is not new so perhaps you can find some YouTube videos around. Documenting the hopups with photos and specific components is all part of my winter building season. The general consensus is that the power upgrade gives you a little stronger take-off, a better vertical, and a 10-15mph increase in speed.

The next Habu hopup is the installation of the E-flite Electric Retracts. I used the [link=http://www.horizonhobby.com/products/10-15-size-tricycle-electric-retracts-EFLG110]EFLG110[/link] 10 - 15 Size Tricycle Electric Retracts. To make the installation much easier, the XPS Laser cut retract [link=http://www.xtremepowersystems.net/proddetail.php?prod=XPS-LCHABUKIT&cat=34]kit[/link] is well worth the money.

By installing the retracts, you can launch and land the PZ Habu any way you like on any surface. It increases the versatility of an already very versatile design.
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Old 12-04-2011, 05:41 AM
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Default RE: ParkZone Habu Hop-ups

XPS has a nice [link=http://www.xtremepowersystems.net/retract1.php]Retract Installation Guide[/link] on-line to help you install the assembly. I did, however, find some issues with their instructions. I did not find it necessary to reverse the strut coil or the servo arm direction on the stock steering servo when using the stock 5-channel AR500 receiver. I have found it very difficult to remove the nose strut on several of these E-flite Electric Retracts. The grub screw is held by a hard threadlocker that strips the screw before breaking the seal. That being said, the guide is xtremely (pun intended) useful.

I first mounted the nose retract onto the plywood base and then I mounted the PK steering servo using the same arm. Since the Electric Retract strut is thicker than the stock Habu strut, you need to open the hole on the wheel and collar. The goal is to slowly widdle out the foam to about a 1.5" depth. Note that a deeper channel is needed for the steering servo. After the assembly fit in the down position, I then worked on the up position. I used a combination of a regular Xacto knife (new blade) and a single edge razor like those used to remove stickers on the windshield.
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Old 12-05-2011, 05:33 AM
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Default RE: ParkZone Habu Hop-ups

I've been using those retracts and they work well. But best of all
if one gets stucked you can easily disassemble it , and put it to work.


ENT
Old 12-06-2011, 01:55 PM
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Default RE: ParkZone Habu Hop-ups

I finished the nose gear assembly and glued it in place with BVM V-poxy. Although I didn't get it quite as low as the installation guide example, it works well and should be good enough.

The control lines for steering and gear are wrapped under the assembly as it is pressed into final position. I found it easiest to have everything hooked up when gluing the assembly in place.
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Old 12-06-2011, 04:02 PM
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Default RE: ParkZone Habu Hop-ups

Here is mine.................XPS / E-flight retracts....................WOW planes Liquid sheeting / Pearl paint, Thunder bird scheme.
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Old 12-06-2011, 04:20 PM
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Default RE: ParkZone Habu Hop-ups

Terry,

It looks great! I wouldn't have known it was a Habu. Red and white are my favorite colors for orientation at a distance...which is why I'm adding red tip tanks.

Thanks for sharing...
Old 12-08-2011, 01:57 PM
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Default RE: ParkZone Habu Hop-ups

The Habu hop-ups continued with the HET [link=http://www.ejf.com/index.php?main_page=index&cPath=70_96_143_205]F-104[/link] Tip tanks. The tanks have a recessed airfoil shape area so I first cut the Habu wing ends to fit inside them. There is a left and right tank in the set.

The stock yellow area on the wing was then spray painted with Testors 1231 Gloss Bright Red enamel. Since this seemed a bit orange in shade, I hand painted a layer of Testors 1103 Red (from the small bottle) over the top and the color seemed to match perfectly. Perhaps the red spray over yellow was too thin, even after several coats.

The tanks were then glued in place using BVM V-poxy.
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Old 12-08-2011, 03:52 PM
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Default RE: ParkZone Habu Hop-ups

dig the colors man!
Old 12-12-2011, 09:39 AM
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Default RE: ParkZone Habu Hop-ups

Subscribed.
Mine doesn't have a whole lot done to it. Just rubber tires and added a 3700 kv Cyclone motor. Good for 1100 watts.
Old 12-13-2011, 04:22 PM
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Default RE: ParkZone Habu Hop-ups

Are you using a 5s pack with the Cyclone motor?

I mounted the wing onto the fuselage and the balance was just about perfect. I still have the gear mains to convert to retracts. I haven't decided what other color changes I will do to the appearance. I may color the horizontal stab red to match the wing and then have the yellow just down the center.
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Old 12-13-2011, 04:39 PM
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Default RE: ParkZone Habu Hop-ups

Nope, just a Lightning Power 45C 4s 3300 mAh.
Those tip tanks add a nice scale touch.
Old 12-15-2011, 08:29 PM
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Default RE: ParkZone Habu Hop-ups

Will the 5s blow the factory esc pretty quick? How does the motor hold up the the extra power?
Old 12-15-2011, 11:09 PM
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Default RE: ParkZone Habu Hop-ups

On 5s you want at least a 80 amp esc, the motor will take it, though
Old 06-26-2012, 01:50 PM
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Default RE: ParkZone Habu Hop-ups

We've been flying my Habu with the hopups this season and really like the results. Here is some video from last weekend. Once the Habu 2 comes out, I'll buy the plastic wheel wells to finish up my retracts. I wanted some wells to glue in solid so that it doesn't weaken the wing. It will also look nicer.

[link=http://www.gregcovey.com/Reviews/HabuHopups1.wmv]Habu Hopups Flying Video[/link] (25meg)
Old 07-12-2012, 02:11 PM
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Default RE: ParkZone Habu Hop-ups

For the short while that my Habu lived the best mods i did to it was replace the 3200KV eflite motor with the 3600KV eflite motor. While I had the fan out during the motor exchange it dawned on me that I should do a thrust tube also. So I fabricated a thrust tube. But before i installed the thrust tube I wanted to see what performance improvements Id get with just the larger motor. The larger motor was definately a good improvement, but...... I losta little bit in flight time only a min or so. With the stock motor on a 4s 3300 40C battery I was getting an honest 8 minutes with enough power to do 3 or 4 go arounds and power to spare. With the 3600 on the first flight I set my timer for 8 minutes flew like I normally would. Well maybe a little more WOT than normal because I was enjoying the better vertical performance. Anyway my timer went off so I was already on the down wind leg throttled back a little and started my turn to base. On my landing approach at about 1/4-1/3 throttle the low power studder warning happend. I was already committed to land and did so with out issue. So for me about 6.5 minutes on that set up is the safety margin. Took the wing off pulled the fan installed my thrust tube, and a fresh battery. My take off roll was a little longer but after lift off it was way more scale in apperance. As the aircraft excellerated it appeared to be even more fast than with out it. But Ihad nothing to compare it too. So the next flying trip my brother came with me. He has a Habu also, but on 5S and no thrust tube. So we did a in air drag race I was a little ahead when we started he passed me but I over took him before the end of the 500 ft runway that we fly off of. We did this pretty much the entire day of flying and Id say that 85% of the time I won. Then I tried a 5s battery shortly after wards and that was really fast but also the demise of my aircraft. Cooked the ESC totally on a really long vertical climb. And she lawn darted into the sage brush.

The motor lived and the EDF unit lived and even the thrust tube made it. But the airframe was toasted. So Im just waiting to for the new airframe only to come available. Throw some flaps and retracts at it with the same set up and a larger ESC this time. I should have the fasted foam Habu in town that Im aware of.

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