The HP VT21 4-stroke RC model plane engine

This is a 30 year-old 4-stroke engine which has an Aspin Rotary Valve in the head rather than more conventional poppet valves and camshaft. These engines are very weak but also amazingly quiet. The airframe is a very old design from the 1960s I think and it weighs a ton. Flying this engine/airframe combination requires a *very* light touch on the sticks because it'll stall in an instant if you attempt to slow it up or use just a fraction too much elevator. Still, it makes a nice change from grossly overpowered trainers, 3D machines and pulsejet-powered RC models.

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60% scale Focke Wulf 190 homebuilt airplane
Update: this plane recently crashed, moderately injuring its pilot. News footage of the crash aftermath can be seen here: cleID/258749/Default.aspx This (about) 60% full-size homebuilt Focke Wulf 190 replica was seen at the Tokoroa Airfield at the local Aero Club's fly-in, April 2010. Sorry about the less than perfect flyby pictures, cloud-cover was thick with persistent drizzle and it was very cold (hence the camera shake!). I'm sure I've seen one this big on YouTube with an RC receiver and servos in it.

The world's most expensive bottle openers
Some people think nothing of spending $100,000 or more on a bottle opener and, if you don't believe me, here's the proof. Oh, and apparently you can use these bottle openers for other things too (I can't think what though).

XJet Channel of the Week (for another year)
Every now and then I like to highlight channels that I think my subscribers may find interesting or enjoyable and here's one of those channels. It's "Drone Girl", an Irish woman who likes to fly multirotors and capture some of the great scenery of Ireland from the air. Not only does she provide some great footage but she is also doing the hobby a great service by providing a counterpoise to the endless misinformation and fear that the media stirs up in respect to "drones" and their use by members of the public. Go Drone Girl!

Tokoroa Aeroclub April 2010 Fly-in
The weather was cold, overcast and occasionally drizzly but that didn't stop fixed and rotary-wing pilots flying in for this annual event. Helicopters, autogyros, microlights, military aircraft -- there was a lot of variety to be seen at the field. The FW190 is also featured in another video I've just uploaded if you want to see more of that little beauty.