TS Paddles and TT 39 Combo
The Raptor 30 is a good flying helicopter and has lots of good features. With an OS 32 it lacks power and with the stock paddles it has a bit slow of a cyclic rate for 3D. Most of us are interested in how to get our helis to fly more aggressively and have more power. I have recently switched to TS paddles and a TT 39 engine and find it a great setup. I get a good cyclic rate and the engine will not bog during simple multiple flips or rolls. Where the engine starts to bog is in full cyclic tic-tocs and kaos/piro flips, the bogging will not be a problem if you know how to manage the power well and avoid applying full cyclic in maneuvers. The TS paddles are designed to work best at 2000 rpm, if you go to a lower rpm then they will not feel as sensitive. At 2000 rpm the stock paddles will feel the same as the TS do at 1600-1700. They have no bad habits and speed up the cyclic rate nicely. Best of all they did not cost us a penny since in our case we used a spare blade which survived a crash unscathed. The are much lighter than the stock paddles. These particular ones are covered with Ultracote.
As detailed below these paddles were tested before being used for one reason. We knew that some people would curse us for using wood paddles, and as a defense they might suggest that they were not strong enough. They are proven to hold 120 lbs before breaking but the average pull on a paddle ranges from 30-50 lbs depending on rpm. TS paddles are paddles that we have made out of a stock raptor blade, and the following is how you can make a set for yourself.
We used a stock Raptor main rotor blade and cut it 1cm inboard of the weight groove. Then we cut the tip 1cm from the outboard weight groove. Finally we cut this piece of airfoil in half. After this we drilled and tapped holes for the flybar. The holes were made on the side with the weight groove at the edge. The wooden threads cut with a tap in the hardwood section were then hardened with CA glue. We tested the holding power to 120 lbs before the flybar pulled out of the threads with some test paddles. After the test we took other “non tested/non strained” paddles with CA hardened threads and epoxy glued them to the flybar expecting a better than 120 pounds pull. Paddle pull in flight is again less than 50 lbs.
The TT 39 preforms great at 2000 rpm producing lots of power for those tough maneuvers that require it, this engine makes the OS 32 look like a joke. Once the engine is tuned it works very good! One thing I like about this engine is it has very precise adjustments on the needles. The power increase is about 30% over the OS 32-SXH, this little engine packs a good punch! Once the engine gets up to 19,000 rpm you will get the “wah-whas” when coming on approaches and during pin wheels if not running real rich. To fix this problem we have put a driven tail on the heli which completely eliminates “wah whas” even on the steepest approaches. The reason you get the “wah whas” is because the tail rpm can lag or vary rpm (without a driven tail) one way un-loading the engine which lets that little extra bit of power out. Once that little punch is let out the gyro tries to stop it from swinging the tail from the extra torque of the engine. Therefore the engine keeps fluctuating and the gyro can’t keep up with it, the end result is the tail ends up wagging and the engine making a “wah-wah” noise. The driven tail does not allow the main rotor to spin with out it spinning as well, so the engine is loaded better by the tail rotor. The engine does not get the chance to oscillate from tail rotor rpm change/gyro feed back issues. The main rotor has alot of inertia to hold the tail rotor rpm constant since the tail rotor is now connected without the past freewheeling nature. After this $3.00 part (driven tail gear) is installed correctly, to get it running smooth you can do some autos with it or just some hover chops. After a bit of this you will notice a difference in smoothness.
Once you have all of this installed on your Raptor 30 take it out to the field and try it! Here is my experience with the three products:
In the hover there is barely any difference in feel at all, where it flys differently is through 3D maneuvers. I can now roll the machine across the sky with a fast cyclic rate and complete stationary flips have no bogging, even with full cyclic and collective inputs.
The kaos/piro-flips are easily accomplished without a lot of bogging. I also do not have to use very much cyclic to get the flip tight.
Moving on to tail slides and death spirals the heli works pretty well, in the tail slides the engine will over speed a bit but there is no sign of “wah was” as the driven tail is installed. The death spiral as expected does not bog at all even with full cyclic. When exiting the maneuver the rotor speed is held constant with exception of a small drop for a second or two.
Going into pin-wheels the raptor will not “wah wah” as it did with the original tail drive. Again, since this maneuver requires little power it is bog-less, but it also does not over speed either since the engine is loaded better at all times throughout this trick. It is quicker with the TS paddles and this certainly makes it look nicer.
Working into an inverted hover shows that the engine is reliable and predictable as are the paddles. Tic-tocs if not properly done will bog the engine enough that you will want to stop the maneuver and start again. Remember all of this testing was done at 2000 rpm and this is where the engine power and the best cyclic rate comes from. It’s a little harder on the helicopter but it’s a heck of a lot of fun.
To sum it up the Raptor flys much better with the TS paddles, the TT 39, and a driven tail. Although this heli does not have the power of a 60, so far this set up has the best power to weight ratio of any 30 class heli I’ve seen. Performance approaches the 50 class model helicopter. The TS paddles give I nice crisp 3D feel with no bad habits or weaknesses. Over all this experiment definitely is worth the money and effort, you will have a much nicer flying raptor as the end result! I almost forgot, you’re probably dying to know what TS stands for. TS=Top Secret.