Firstar V2. 70mm EDF Conversion.

...flies and sounds better

The flight performance of the Firstar has been very disappointing, mainly I think because of the effect of the negative thrust angle which effectively just increases the wing loading.

So, like I'd long considered with the Floater Jet but never actually did, I've replaced the pusher prop with a low-mounted 70mm EDF installed directly on the body mount used for the stock motor tower with large cable tie straps screwed in place.

The EDF is rated at about 1.2kg thrust, far more than required, so I'm only running it at 60% speed on a 3000 4S lipo, which is more than adequate. In conjunction I've also replaced the stock 30A ESC with a 50A unit.

The thrust line of the EDF is virtually through the centre of lift on the wing, and this shows on launch with the V2 flying straight and then beginning to climb as the speed climbs, in stark contrast to its behavior with the tall pusher prop where it always nosed in and was reluctant to climb.

The much sleeker form, with the tower and foam shroud, means that it's also faster through the air, if required, and glides very well. And, if you needed more benefits, it also sounds brilliant...

Flitetest Viggen. First Flight.

...no bites from the vegan

Preparing for the first flight of the FT Viggen I was both excited and nervous; it looked to be a great flying plane made a little more forgiving with the canards. However, having a completely flat underside, it was also the first plane that I’d ever have to launch underhand.

So, as I’ve done several times before, I headed into the depths of the paddocks to a launch spot with long grass, just in case I needed an arrestor bed. As it turns out not really but it didn’t hurt since, at my first attempt, the trajectory was too flat, and the Viggen simply disappeared gently into the foliage.

The second attempt was good, the Viggen holding an upward attitude till I could bump up the throttle and then it was on its way.

Flitetest Nutball. First Flight.

...a well rounded plane


Whilst waiting for parts to arrive for the completion of the Viggen, my first Flitetest project, I decided to do a Nutball from a spare sheet of foam and a scrap motor.

It's a very easy plane to make, much simpler than the relatively complex Viggen, so didn't take long to make at all.

However, I didn't like the front-mounted motor or externally attached battery, which I thought looked ugly, so I mounted the motor internally and made access to the power pod through the top of the plane.

The result was a much neater-looking plane however required a much bigger battery (a 1300 3S) in order to compensate for the relocated motor.

With a big wing area I didn't think this would be a problem, however it turned what should be a slow floater into an absolute handful of a plane. Additionally, the elevator/rudder setup seemed highly ineffective with the Nutball not wanting to turn much at all. In fact, overall, flying the Nutball it recalled my first flights with the nose-heavy Radjet. 

By the end of the second flight, which ended with the Nutball spiralling into the paddock, I'd decided to reduce weight with a smaller battery mounted on top, and to change to elevon mix layout to improve flight response... 

Firstar Sunrise III

...and lovely clouds

Another lovely morning from a few weeks ago, perfect for for a pre-work sunrise flight. The Firstar is a good camera platform, although I haven't been able to use it for FPV due to interference issues with my Taranis radio.

Also, the motor configuration means it doesn't climb very well. However this will soon change; I'm getting some bandpass filters which will hopefully resolve the 2.4GHz interference, and I'm planning to replace the prop with a low-mounted EDF unit to eliminate the down-thrust of the stock unit.

So, we'll see how these changes pan out; here's hoping for some cloud soaring...

Canadair on the Lake.

...an afternoon cruise

It's not often that I get to the lake; access is restricted so it's only on nice afternoons when it's not to windy. And only on a few couple of days a week.

On this particular afternoon things were looking good, so I arrived at the lake only to find that it was pretty windy.

Now the Canadair is a very capable and stable flyer, but I'm nervous about mishaps on water, necessitating getting my inflatable rescue craft out, blowing it up before paddling across the lake you're not supposed to go boating on.

Anyway, I decided to fly nonetheless and, fortunately, things went fine. The water wasn't too rough nor the wind too gusty, so I had a pleasant afternoon cruising the Canadair around and doing takeoffs and landing without having to call the rescue squad...