|Dec 31, 2001, 11:49 AM|
GWS Drive Upgrade for Wattage B-2
A Wattage B-2 arrived from Santa last week and, after reading a few threads about power problems with the stock configuration, I redesigned the power system out of the box. The plane flies great -- although it is decidedly NOT a beginner's model.
Here's what I did.
1 - Converted motor to the GWS geared system standard on the Tiger Moth and Lite Stik. After removing an inch from the rear of the plane, I cut a slot for a mounting stick from the radio complartment to the back end of the plane for a "pusher" configuration.
2 - Using packing tape, I reinforced the wing joints to handle the extra speed and covered the mounting areas for the stock motors to reduce unnecessary drag.
3 - I didn't like the control linkage for the outboard elevrons, so I didn't bother with them. I just used the inboard set and increased the throw.
I wanted to try the intial flights with a 6 cell, 300mah NiMH pack, but my charger flamed that pack a day before completion. I borrowed a 7-cell and tossed the plane.
After trimming, which is a task, I can toss it gently and watch it speed away. It can roll, split-S, and loop after a short dive. The B-2 slows down nicely for landing. I've had the best luck with a GWS 9X4.7 prop. Although a longer prop may work, I need more thrust angle to counter-act the torque.
This is a fun plane that always turns a few heads.
|Dec 31, 2001, 10:35 PM|
Yep. I was flying my B-2 yesterday with a GWS direct drive and ThimbleDrome 4.5x2 prop. With a 6 cell 280 mah NiMh pack, it flys for 7-8 minutes and is a great little park flyer. Seems the Wattage folks got the aerodynamics right, its just way underpowered with the standard power setup. Its one of my favorite airplanes now.
|Jan 02, 2002, 12:36 PM|
I acutally tried a 9X7 prop on the gear drive and it now it is a hot rod. I'll try a direct drive at some point, but for the moment I'm just enjoying the heck outta the plane!
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