An update for all LineMaster 2.4GHz pilots
I want to share an important update with all pilots who use LineMaster 2.4GHz.
Some time ago, I received the first report of a situation where, during an abrupt maneuver to try to recover a model that had lost line tension, the Slide & Lock plate came out of the handle. At that time, I worked on reinforcing the mechanism, considering it a very uncommon condition.
Recently, I received two more reports of similar situations. In every case, the models suffered significant damage, and those of us who are part of this hobby know exactly what that means. It is not only the cost of an airplane, but also the many hours of building, adjusting, testing, and dedication that go into each one.
For that reason, I have decided to temporarily stop selling LineMaster 2.4GHz handles. I do not want to continue putting models at risk while I work on a permanent solution.
In the meantime, there is a simple safety measure for current handles: install a safety zip tie around the plate and the handle. This zip tie prevents the plate from sliding out of the handle. To change plates, the zip tie will need to be cut and replaced with a new one, so for now we lose some of the convenience of the Slide & Lock system, but we gain a much more secure secondary retention method.
I recommend not using current handles without this safety zip tie installed.
I will be working on a permanent solution that keeps the functionality of the Slide & Lock system while adding an additional safety mechanism. Once it is ready and properly tested, I will publish all the details, along with the procedure for pilots who already own current versions of LineMaster 2.4GHz to receive this upgrade for their handles.
One of the main goals of LineMaster 2.4GHz has always been to help keep the control-line community alive and growing. I believe that also means being honest, listening to pilots, and improving the product whenever we find something that can be made better.
A special thank you to those who took the time to contact me and explain what happened. I am truly sorry for the losses that occurred, and I know very well how much time, effort, and dedication goes into every model. That is why I am taking this issue very seriously and working on a permanent solution.
Founder and developer of LineMaster 2.4GHz
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What is
LineMaster 2.4GHz?
LineMaster 2.4GHz is a control system designed specifically for control-line flying, combining the ergonomics of classic handles with modern 2.4 GHz radio technology.
- Designed for Carrier, Scale and Sport flying
- Ready to use out of the box
- Modular platform: throttle, flaps, retracts and more
- Built to improve safety and versatility
More than just a transmitter and receiver, LineMaster is an evolving platform created to expand the possibilities of the hobby while staying true to its roots.
Built with pilots in mind
LineMaster 2.4GHz was designed around how control-line pilots actually fly. From the handle ergonomics to the firmware logic, every decision prioritizes predictability, safety and confidence in the circle.
Why it exists
For years, control-line pilots have relied on modified transmitters, DIY setups and improvised solutions. LineMaster offers a purpose-built solution designed from the ground up for C/L pilots who want modern capabilities without unnecessary complexity.
From idea to reality
Developed through countless test flights and 3D-printed prototypes, refined with the support of Eduardo de las Casas and Bob Whitney.
An early prototype was featured in Model Aviation – December 2024. Today, LineMaster 2.4GHz is moving toward a robust, ready-to-use platform with one clear goal: enjoy and grow this amazing hobby.
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LineMaster 2.4GHz is led by Carlos Díaz, with invaluable support from Eduardo de las Casas and Bob Whitney.
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