Orders Only: 1-800-723-5937 Information: 1-406-259-9004
Hours: Mon - Sat 10-6 MST
Fill your Robart Large Air Tank in about 1 minute
Programmable pressure shut off with LED display and light
Rechargeable with built in battery (USB and DC/Car charging ability)
Includes the following:
Air Pump
Fill tube
Adapter fitting
18 inches of air line
USB charge cable
DC/Car charge cord
One pair: one right side and one left side.
When Central Hobbies first began offering titanium struts, a lot of pattern pilots were curious as to why they might want to use them, and whether or not the extra cost is justified. And we get still the same question from pilots who are looking for ways to improve performance and stability.
There are times when the 5/32" steel struts are not enough. As pattern planes have evolved, several factors have contributed to the need for more substantial struts. Those factors include:
Higher wing locations
Higher weights of the newer 2-meter aircraft
More powerful engines that turn larger diameter props (16-17" diameter and larger vs. the old 12" - 13" standards)
As a rule of thumb, titanium has only three fifths the weight of the steel used in steel struts. So if your steel struts weigh in at 60 grams a pair (roughly 2.12 ounces), you can cut 24 grams off the gross weight of your plane by simply switching to titanium struts of the same diameter and length. Yet, while saving weight, you also add a lot of durability and strength to the landing gear.
Obviously the higher weights put more load on the struts. But even more significant are wing location and prop diameter: both are factors that require LONGER struts. As you extend the standard 5/32" wire struts beyond a length of 7-8 inches, they become too spindly and bend too easily.
Enter the titanium strut. Made from Titanium alloy, at full length the struts are lighter than the much shorter standard struts, and offer better rigidity. They also tend to bend further WITHOUT taking a permanent "set" requiring re-bending. For the larger planes and props, these struts offer the support and clearance needed with lower weight than the shorter standard struts.
You may also want to consider building your aircraft to accept the larger -- 2-3/4" to 3" -- wheels to further enhance the ground handling of your aircraft and allow slightly shorter struts.
Are there any negative aspects to the titanium struts?
In a word, yes.
Titanium is expensive material and is also more demanding to work and machine. These factors make titanium struts more expensive than music wire. Also, if there are defects in a strut, or with a very hard impact, the struts may still break. We've had a total of three strut failures reported to us in the entire time we've been selling titanium struts (to hundreds of pilots all around the world).
NOTE: Titanium is Not bendable without special equipment and process. Attempting to bend these struts Will most like break them and is Not covered by any warrenty. Use the appropriate axles for the size strut.
This is a Hand Pump for Charging Pneumatic Retract Systems with Air.
FEATURES:
Has a High Stroke-To-Bore Ratio so High Pressures with Minimum Effort
Rated at Over 100 psi
Gauge on the Pump w/Ball Check Valve so Tank Pressure can be Read
Bright Nickel Finish
INCLUDES:
One 100 psi Hand Pump w/Gauge and 14" Red Tubing
COMMENTS:
Robart makes the 164C Air Pump Mounting Clips (ROBQ2362) for conveniently mounting the hand pump to the outside of a field box.
This is a Fill Valve and a Fill Valve Fitting from Robart.
FEATURES:
Lightweight Aluminum
Works with Most Retract Systems
Fills with Air from Both Pumps and Compressors
INCLUDES:
One Fill Valve
One Fill Valve Fitting
This is Tubing used with Pneumatic Control Systems or Retracts.
FEATURES:
Durable, High-Pressure Tubing for Pneumatic-Control Systems or Retracts.
INCLUDES:
One5 ft Pressure Red (pink) Tubing
One 5 ft Pressure Purple Tubing
SPECS:
Rated at Over 150 psi
Outside Diameter: 1/8 inch
Inside Diameter: 1/16inch
This is Tubing used with Pneumatic Control Systems or Retracts.
FEATURES:
Durable, High-Pressure Tubing for Pneumatic-Control Systems or Retracts.
INCLUDES:
One 10' Pressure Black Tubing
SPECS:
Rated at Over 150 psi
Outside Diameter: 1/8"
Inside Diameter: 1/16"
This is a package of 6 Air Line Retainer Fittings from Robart.
FEATURES:
Knurled for tool free hand tightening.
Aluminum construction.
Threaded through entire body.
SPECS:
Height: 6.0mm (.238")
Outside diameter: 6.4mm (.252")
Inside diameter: 4.0mm (.159")
COMMENTS:
Air line fitting retainers connect your air tubing to your fittings.
The tubing goes to the fitting, and the retainter holds it in place by threading over the tubing and the fitting.
This is an On-Board Pressure Gauge that Easily Monitors the Air Pressure of Your Robart Retracts.
FEATURES: Works with any air system
Mounts to side of fuselage or as an instrument in the cockpit
Reads 20-140 psi, in 20 psi increments
Metal Construction
INCLUDES: One On-Board Pressure Gauge
One T-Fitting
REQUIRES: Any Pneumatic Retract System.
SPECS: Weight: 0.2oz
Length: 1-5/8"
Diameter: 1/2"
This is a Variable Rate Air Control Kit from Robart for Any Pnuematic Retract System.
This Allows the modeler to Control the rate at which the Retracts go Up and Down. This can be used with either a 3 gear or a 2 gear setup. This Air Control Kit comes with Everything Needed to Complete Any of the Robart Pneumatic Retract Setups.
INCLUDES: One Instruction Sheet
One Variable Control Valve
Five Tee Fittings-Nylon
One Air Fill Valve
One 5ft of Purple Tubing
One 5ft of Red Tubing
Six Retaining Nuts
One Small Air Vessel (Tank)
SPECS: Air Control Valve Length: 2" Width: 1/2"
Air Vessel Length: 6 1/2" Diameter: 1-3/4"
The Deluxe Air Control Kit is the "plumbing" for Robarts retracts used in .60-.80 sized aircraft. This air kit can be used for two gear or three gear retracts.
More InfoThis is a Set of Four Gold Anodized Aluminum Air Restrictors for Pneumatic Retracts.
FEATURES:
Reduces Cycle Speed of Pneumatic Retracts Giving it that "Scale Look" of Hydrolics when Rectracts Go Up or Down.
The Restrictors have a Smaller Opening that causes the Retracts to Move Slower.
Installs Into Standard 1/16" Air Lines.
This is a Fitting that Installs Into a 1/16" Air Line so it can be Connected and Disconnected Easily and Quickly with Just a Twist of 90 Degrees.
FEATURES: Made of Lightweight Thermoplastic
Rated at Over 100 psi
For Installing in a Wing so that the Air Lines Going to the Retracts can be Quickly Removed.
INCLUDES: Two Complete Air Connectors (each having two parts)