Full Metal Servoless Retracts with Steerable Nose Assembly and Oleo Legs - High quality servoless retract system for models weighing up to 3kg, features all metal construction for precision, reliability and durability, also features auto cut off for protection against excessive current draw. Included are a set of quality Oleo legs and plastic wheels with foam tires. Finally, a reliable alternative to air & mechanical operated retract systems for your models!
Ideally suited for Habu EDF
Pin size: 3mm
Weight: 58g each (Mains) 60g (Nose unit)
Max Model Weight: 3kg
Operating Voltage: 4.8v~6v
Includes 3 way connecting lead
As shipped, does not fit in the habu 32x. I needed to do the following to make it fit:
1) The wing retracts need about 2mm of metal sanded off the center area of the mount
2) There is part of a wing rib underneath the place on the wing for the retract. This section of rib needs to be removed as the wing retract is too deep for the habu 32x.
3) About 2 cm of the plastic wheel well also needs to be removed from the wing as the motor in the retract is too deep for this portion of the wheel well.
4) The oleo is not long enough to fit in the habu's pre-installed wheel well. In order to make it fit, you need to buy a length of 3mm piano wire. You will need to cut a 4 cm section of this piano wire and use it connect the trunion to the Oleo to gain appropriate length.
Once all of this is done, the retracts now fit. Unfortunately, with the necessary length of music wire, they don't look good and are now only as strong as that thin music wire. Because of this, I gave up on the Oleos and hoped to just use the metal retract with the stock structs. Unfortunately, the stock struts are 4mm. I drilled out the trunions to 4mm, and the stock gear now sort of fits in one, but I ruined the other retract and am now waiting on new ones. The nose gear retract also doesn't quite fit, but it seems like it will work with a little modification.Bought these for my Habu 32 to replace eflites that bent with even the gentlest landing on grass. The mounting holes are identical to the fitted eflites but you will need to make up extensions to the oleos, otherwise not too much modification needed - just a bit of dremelling here and there.Foam wheels and CHEAP plastic wheels. I performed about 45 seconds of low speed taxiing and the spokes on a main rim broke, and the front tire fell off and the front rim broke in half on decent asphalt. After upgrading wheels I had the struts repeatedly loosen I had to remove them and grind flat spots on the retracts, and drill and tap the M3 grub screws for M4. Only good on 70MM foam and smaller type A/C under 3.5 lbs I would say.Works very well on Habu2Good value for the money. Workmanship seems good so far. Bench testing, all retracts are working. I put an obstruction in, and they stalled and stopped as they should. Then recovered on the next cycle. The biggest problem is these are NOT "ideally suited for the Habu". The struts are too short by an inch (25.4mm) or more. And the wire pin that holds the strut to the trunion is too thin to hold up. They are not as big a diameter as the stock eflite strut even. I will have to drill out the holes, install a longer, bigger dia pin to make the wheels reach the wheel well cavity. This is not beyond the skills of an experienced modeler, but the necessity to do this modification should have been in the product description. The other issue is the wheels barely fit at all in the wheel well. They will have to be sanded down. The CROWN rating isn't mine. HK seems to control this, so what's the point of having a rating. I give it 4 crowns overall, 5 for value, 5 for value, and a 3 for the incorrect description.retracts good. but I have two flights after one stopped working. where to find an electrical part?
motor - a whole, and the scheme does not work.Nice and sturdy retracts, smooth and slow retracting actions. Built quality is very good as well. The main gear can be installed 90 degrees from the default orientation. Will be using it on my single 70mm F-22.
The measurement at the product description page is not very helpful so I did some measurement when the gear is extended.
From mounting plate to wheel axial:
Main Gear 75mm
Nose Gear 98mm