Paul Tradelius

Hover Collective Pitch Settings

Mar 12, 2013 1 Comment

In my previous blog I presented some pitch angles that are a good place to start for doing autorotations. However, if you are in the process of learning to hover it’s important to reduce the collective pitch range to keep the helicopter from being too sensitive. Many helicopter setup instructions recommend 5 to 10° of [...]

Read more

Autorotation Pitch Angles

Feb 21, 2013 No Comments

I received the following e-mail from Jim Ryan about autorotations and the required pitch angles to make them work. Hi Paul, Hope winter is treating you well – what am I saying? Of COURSE winter is treating you well! Durned Floridians. I’ve set a task to myself to really master autos this year, and which will in [...]

Read more

New GPS control from Skookum Robotics

Feb 11, 2013 No Comments

One of the latest flight control enhancements to our hobby is the incorporation of GPS positioning data into flybarless flight control system software. As we all know from using GPS in our cars, it can pinpoint our location with great accuracy and give us directions to almost any spot on the planet. However, one GPS [...]

Read more

Tail Rotor Stabilization Experiments

Jan 22, 2013 1 Comment

First flight test your helicopter with its standard tail rotor configuration, and note the gyro sensitivity setting as well as the tail rotor response on specific maneuvers. Now replace the stock tail rotor mounting bolt with a longer one so weights can be added to each side of the tail rotor blade. I have found [...]

Read more

More Tail Rotor Stabilization

Jan 14, 2013 No Comments

How It All Works – This now results in two opposing forces acting on the tail rotor system. The aerodynamic force wants to streamline the blades to zero pitch while the centrifugal force wants to rotate the blades to their maximum pitch. These tail rotor weights produce a centrifugal restoring moment (CRM) because they act [...]

Read more

More on Tail Rotor Stabilization

Dec 14, 2012 3 Comments

Last week, we looked at some basic principles of full-scale tail rotor design. This week, let’s investigate more into the four weights that are used in a full-scale helicopter rotor to reduce control power. But first, let’s review some engineering principals we already know. If you were to tie a small rock to the end [...]

Read more

Winterize with WD-40

Dec 10, 2012 3 Comments

Now that the weather is turning colder many of you will be putting up your helicopters for the winter.  Although this is a time for general maintenance and cleaning I also recommend you spray down your complete helicopter with WD-40. The WD stands for water displacement and the 40 is the number of compounds they [...]

Read more

Tail Rotor Stabilization

Dec 09, 2012 No Comments

Tail rotor design in full scale helicopters is an on-going science to reduce weight, noise, and power requirements while increasing efficiency and stability. Although these same design parameters are also important to our model helicopters, their effects are a lot less noticeable and can be overcome without seriously degrading flight performance. As an example, if [...]

Read more
Copyright © Air Age Media. All rights reserved.
click me