problem w/ raptor 30 Please help!!!
 

When I pull up from a high speed dive, the heli balloons almost vertical. Someone had told me that my glass blades are too light w/ the ksj 3d paddles. Would heavier blades solve the problem? Also, would flybar stiffners or a stiffer flybar help? Any help would be apperciated.

Scott

severe pitch up in FFF
 

Simple - get rid of the paddles. They are designed to give you rapid cyclic, but the FFF pitchiness is the price you pay on that type of head.

problem w/ raptor 30 Please help!!!
 

KSJ paddles are notorius for being pitchy in FFF, you can tame them down a little by sanding the leading edge to a nice rounded shape or wait for Vic to make V-paddles for 30/50 sized heli's.

problem w/ raptor 30 Please help!!!
 

I tried using the stock paddles, but got the same effect. It still likes to pitch up on fast foward flight

problem w/ raptor 30 Please help!!!
 

Are you using any expo in the flight controls? It takes a light smooth touch on the cyclics to pull out smooth and easy. Expo can help quite a bit around center stick.

Pitch up
 

The Raptor head is inherently unstable dynamically in its stock form (set up with the blade pitch controlled from the trailing edge as they are) making it very succeptible to pitchiness and flutter. This will be most pronounced when used with a destabilizing type of paddle (KSJ) or the less stable type of rotor blades. (Other head designs control such combinations a lot better).

If you use more stable blade designs like the Hurricanes, FunKey, V-Blades, Leisure-Techs, NHP's etc (blades with better matched chordwise c of g's with feathering axis and their center of lift) this pitchiness can be minimized. Blades that are not as well matched in design, (e.g. the old version of the V-Blade, ATS blades, Sung Woo etc.) will agrivate this tendency.

This natural pitch tendency of that head design will also be agrivated by any swashplate slop (between the inner and outer stars), in the rocking slop that develops between the mainshaft and the washout hub and/or in the seesaw mechanism.

If you tighten everything up and get some stable blades, your problem will become very manageable.

Or you can go to a heli with a more advanced head design.....some such advanced heli heads were designed years before the Raptor hit the streets. Some of these more advanced designs are even present in other low priced entry level helis.

problem w/ raptor 30 Please help!!!
 

That's funny my sloppy old Raptor 30 with the unstable, inferior head design does just great in FFF. Keep your Raptor and try some different main blades.

problem w/ raptor 30 Please help!!!
 

easily possible due to bad quality control that one is good and one is bad, mine has it's problems with FFF from time to time... :) but than it's a 50 and it's not old, but it's sloppy alright... :)

problem w/ raptor 30 Please help!!!
 

You might want to check your cg because Ive had a similar problem with my raptor 30. I added a little nose weight and V blades and now my raptor flys great.




P. Richards
Mach 2 jets
Flight Demonstrations
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