Tag Archive: extra 300


Hello!

I had quite some pause in my RC activity. My daughter had priority over RC stuff, so please excuse my lack of posts.

Now the indoor season is going, so we can join in a school sports hall on Friday evenings for one and a half hours.

Outdoors flying is probably getting very problematic in the future, our club is being kicked out from our flying field by the municipality. Unfortunately there is quite some politics and corruption involved, so we don’t really have much of a chance in this game.

My 10th flight was rather boring probably. I haven’t been flying for quite some time, so I tried to freshen up my reflexes.

My latest indoor flight was the 11th flight with my Extra300. I used a new camera for recording, purchased recently an SJCAM SJ4000 action camera. It is basically a copy of GoPro3, with some attractive pricing.

The camera is rather okay for my application. I knew that it has some limitations, so I was not expecting it to beat the latest GoPro4 series. For instance it has some issues with white balance and it would not work so fine for FPV either. It cannot do 60 fps, only 30 fps. But it is fully compatible with GoPro accessories and has a rather okay picture for the price. I made some very simple reviews of it, you can find some videos below.

I look forward to fly a bit more during the winter season.

With best regards,

Sir Crash a Lot

Hello,

It was quite some time since I reflected on my Extra300 EPP indoor plane. The build was rather long and I had many questionmarks. I think this happened partly due to my inexperience in building and due to the manual being written by a very experienced senior pilot who mentioned only the most important aspects of the build. I am not even novice in building, so I would have needed a lot more detail in building instructions.

Anyhow, the plane is ready and it flies well. I tried to take a stepwise approach with flying. I knew that indoor flying would demand constant usage of rudder. While flying my Easystar I started to turn with rudder and aileron together. So I made some rudder practice to prepare myself for indoor challenges. However I knew that playing with rudder while having “the whole sky” to my disposal is rather easy. I was prepared for some crashes as I knew that indoor will be a lot more difficult.

To not ruin the plane within 10 seconds of flight I tried to practice on the ground first. That said applying a fraction of throttle and “driving around” in circles rather than lifting off. This was more difficult than I have thought it would be, since nothing was trimmed and I had a new radio system even. As result I had some occasional unintended takeoffs. These were aborted mostly, that said I crashed the plane nose-in to the floor. Like a warbird tip. I consumed propellers at some rate 🙂

Maiden flight:

2nd flight:

3rd flight, I started to enjoy high angle-of-attack slow passes. Not easy, but fun. Tried to mix directions, figure 8 and slalom flight. Very exciting to do, maybe not so exciting to watch, though.

4th flight, I tried to transition to hover.

5th flight, with hovering practice.

6th flight, more hovering and fun flight.

7th flight. I started to grow devil horns, had some “moments” of daredevil actions. Landed on the wall for instance.

8th flight, my first roll indoors. Scary but fun.

I skipped last weeks flights as I was fortunate enough to have my daughter born. She was born at 1:30 on the 20th of January 2014. A real miracle, 49 cm and 3230 grams of new life. Funny enough it is my birthday, I received the best possible present ever! I stayed home to help my wife and the baby, no flying right now. I will regain action soon, just need to sort out the first few weeks with helping around.

I am not sure what will happen to our outdoors flying. The flight club is going through a very difficult time period. The council announced that they will remove us from our flying field. As from 1st of February 2014 we are no longer allowed to use the field, we have to clear the area and cannot return. We haven’t received yet any other area to use, so the very existence of the club is in danger.
Our flight club and cross motorcycle (dirt bike if you like) club is removed from the area. The cause for this unfortunate decision is that an investment group tied to some politician tries to build a set of luxury golf flats in the area. It is rather interesting, since the golf club itself went bankrupt several times during the last few years. Besides that there are many issues around the build plans, as it seems politics and corruption got mixed up things quite a bit.

The club tried to apply for a negotiation, but the council does not really listen. So as for new it looks like that 1st of February is the end of our current flight activity.

I don’t know yet how we will do. There are some locations where I can fly, but the club itself will not be able to survive without a flying field. We will see.

An article from local newspaper.

With best regards,

Sir Crash a Lot

Hello,

I was participating at Winter indoor flights earlier but never could fly for real. I made some practicing with my Lama v3 helicopter and watched the others fly with their special indoor planes.

Now the time has come for me to join as a flying participant. I ordered a nice indoor plane and some matching electronics.

The plane is an Extra 300 made from EPP material. Has 830 mm wingspan and a high visibility colour scheme.

ap-e300-epp-3_9628 ap-e300-epp-1_9626

According to the description this can take some crashes without being converted to confetti. In my case this is not only a good plus point, it is more or less a basic requirement. I think I will need to get some good practice in simulator.

I found a clip where a really expert level pilot flies such a plane indoors. Amazing piece of piloting.

I will be happy to just fly around without touching the walls or other hard surfaces.

As for the electronics I went for the following list of components.

Turnigy 19 gram brushless motor.

2S 370 mAh battery.

HXT900 servos.

10A ESC.

GWS propeller. A lot of them to have spares 🙂

I planned to use my existing Turnigy 9X v2 radio with it. I have 4 extra receivers, got them together with the radio. Then I have got some second thoughts.

I was watching a lot of reviews about FrSky radios earlier and started to be interested. Rc Model Reviews had some great reviews of FrSky. They just launched a new transmitter, it looks like a very capable piece of kit. Maybe a bit too much for me right now, but I keep it in mind as a possible upgrade for later. My current knowledge and experience does not really need such a high spec radio.

Then I came across a nice review of Turnigy 9X radios and how they can be upgraded to a much more flexible system and also software. The original firmware of 9X radios is a bit cumbersome to use. Rather illogical menu system and some limitations. The receiver is huge and heavy for a foamy plane (18 grams). However it is possible to modify it with some cheap items. The result is a very capable radio unit that still has an exceptionally low price.

With FrSky DIY kit you can actually convert your 9X radio to FrSky protocol. A more robust protocol with great range and features.

With a clever little programming card called SmartieParts 9X it is possible to reflash the radio to er9x firmware even.

This will enable unlimited swith mapping. Anything can be assigned to any switch on the radio. Also it extends model memory to 16 planes (originally 8 memories). And with er9x software you get a more logical menu system.

To be able to fly my Easystar with FrSky radio protocol I need to retrofit it with a compatible receiver. So I purchased a receiver with telemetry. A nice feature, I could for instance see the battery voltage while flying. As I understand I can set a warning even for low voltage. Will check how this works.

For the indoor plane I bought a small 5-channel receiver. It weighs only 2 grams (!!!)

5-channel

This unit is so small that I will need to solder micro servo connectors onto the servos.

To really upgrade my radio I also bought a LiFe battery specially made for transmitters.

Transmitter battery pack

This battery will replace the current array of 8 AA cells. Charging 8 pieces of Ni-Mh AA batteries takes ages and they are hard to maintain on the long run. A TX battery on LiFe will give true voltage reading for the radio and it provides 10V against LiPo batteries which would overdrive the radio circuit board.

I will have a major upgrade when everything will be ready. First I need to get hold of the packages. Chinese celebrations mean that hobby parts are delayed. Now the celebrations are already over, so hopefully next week my package will get posted and travel to Sweden from Hong Kong. Exciting it is.

Weather is turning into Autumn, so indoor flight season is soon to be started. As I understand from 1st of November we can fly again at the school sports hall. Not much time left to build my plane.

With best regards,

Sir Crash a Lot