RC Retractable Landing Gear: The JP Hobby ER-005 Metal Strut Set.
These RC retractable landing gear, can be used in a scratch built RC airplane or as a replacement part in an existing model.
PAGE CONTENTS
Features
- Manufactured from aluminum.
- All electric operation.
- For RC airplanes, up to 6Kg (13.2LB) in weight.
- Great for grass strips.
- Fully sprung trailing link struts.
- Electric brakes available
- Sequencer available, meaning gear doors and brakes can be activated without extra channels being required.
- Steerable nose wheel.
- Choice of nose wheel strut type, even twin wheels!
Specifications
JP Hobby ER-005 RC Retractable Landing Gear
- Retract Unit Width: 1.457" (37mm)
- Retract Unit Length: 2.898" (73.61mm)
- Retract Unit Height: 1.043" (26.5mm) -Retracted.
- Weight:1lbs 4 oz(115oz)(550gms)
- Strut Diameter: 0.394" (10mm)
- Strut Mounting Pin Dia.: 0.197" (5mm)
- Retract Angle: 90 degrees
- Working Voltage: 5-6V
- Retract Time: 5.2 secs (5V)-4.3 secs (6V)
- Control Box Size: 2.09"(53mm)x1.26"(32mm) x 0,83"(21mm)
- Nose Wheel Dia.: 1.57" (40mm)
- Nose Wheel Axle Dia.: 0.157" (4mm)
- Nose wheel O/All Height: 7.37"(187.26mm)-Extended
- Main Wheel Dia.: 2.56" (65mm)
- Main Wheel Axle Dia.: 0.157" (4mm)
- Main Wheel O/All Height: 7.58" (192.59mm)-Extended
Videos
This video shows us much more than just the JP Hobby retracts. The 90mm EDF unit as well as the matching ESC are shown. But there are excellent shots of the retracts as well.
Here we see the installation of a nose wheel assembly. You will notice that this version uses pull/pull wire steering. This is another option that is available.
Unique Features
- Many nose wheel strut arrangements available. Including twin yoke and twin wheels.
- Pull/pull wire steering, as well as direct servo connection available.
- Electric braking is possible.
- Control box can be used, thus saving control channels.
Competition
Robart make a wide range of electric retracts, as well as air operated units.
The 520 RSE units are good for 6-12lb(2.7-5.4kg)RC airplanes,
Struts are also available, in 3/8"and 7/16" dia. (9.52 and 11.11mm dia,)
A control unit can also be purchased.
Click here to visit Robart.
Photo Gallery
3D CAD Models
The images below, of the RC retractable landing gear, are interactive. You can use your mouse wheel to zoom in and out, and if you press the shift key and the wheel, you can rotate the image.
To return the image to the start point, click on the house symbol in the top right-hand corner.
The icons at the bottom of the screen have various effects, but the "explode" icon is very spectacular!
The icon at the extreme right will give a full screen image.
I used Fusion 360 to produce the models, and you can download them, by visiting this page on Grabcad
Purchasing
The retracts are available from Fan Jets USA. Please note that we do not receive any commission from sales, we offer these links for your convenience.
The price for a set as shown-$159.99USD. (3 units, plus sequencer)
The oleos shown here are 10 mm (0.394") diameter. The nose wheel oleo is in the center and shown as a pull/pull style. A direct servo hook-up style is also available. Also, there are other designs of nose wheels available.
The price for the designs shown is $109.99USD
One of these nose wheels are required.
They are 40mm(1.57") diameter and are complete with ball bearings for a 4mm (.157") diameter shaft.
The price from Fan Jets USA is $14.99USD.
Two of these wheels are required.
They are 65mm(2.56") diameter and are complete with ball bearings for a 4mm (.157") diameter shaft.
The price from Fan Jets USA is $27.99USD.
Electric Wheel Brakes
If you require brakes, then substitute the above main wheels (65 mm diameter) with these-
Wheels are complete with electric brakes.
The price from JP hobby is 74,17 €
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