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 Big Wot 4

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PostSubject: Big Wot 4    Fri 20 Jan 2012, 9:35 am

I have been building a large wot 4 over the last three or four months, It is now in the stage of installing the servos and engine. I am planning that at a later date to get a good video camera to put on board.

Wing span 68"
Length 65" with Engine
Engine CRRC Pro 26cc (the one from my old Red Bull)







Covering the plane was good fun and quite satisfying to do.






Wing and Fuselage together.








I still have the Ailerons to install yet but it is getting there. This time off to rest my arms and shoulders has really enabled me to get sorted ready for the year to come and a good few days flying.

More to follow as it progresses.
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PostSubject: Re: Big Wot 4    Fri 20 Jan 2012, 7:59 pm

Not had chance to do much today as I had to go out and get a replacement 7Kg calor Gas Bottle. Well I had to tour around a bit as Young's no longer do them "Bugger" but ended up getting one in Hythe.

But I did get the Ailerons on and search out my new servos, I just ordered new extension leads before I can continue.

Not long now. Bunch
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PostSubject: Re: Big Wot 4    Fri 20 Jan 2012, 11:25 pm

Will be good to see your new Wotty and to see you flying again Daron Bravo Bravo Bravo
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PostSubject: Re: Big Wot 4    Thu 26 Jan 2012, 9:10 am

Started to move on a bit now, I have all the servos in and the switch and as you can see the Engine. I think it looks OK.

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PostSubject: Big Wot 4   Thu 26 Jan 2012, 10:21 am

Looking good Daron you have made a nice job of it should look good in the air, i scaled up the Wot 4 Drawing you gave me to 72"
have you used that same drawing as well !!.

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PostSubject: Re: Big Wot 4    Thu 26 Jan 2012, 10:45 am

Most of it was measurements taken from Ian's one out the field, but with the plans as a guide.

68" is big enough! well is for me as it looks like a surf board as it stands lol! No I am very pleased with it. Have come to a stand still at the moment until the parts I have just not long ordered arrive.
So while I am waiting will bring in the Hurricane and have a look to see what needs doing.
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PostSubject: Re: Big Wot 4    Thu 26 Jan 2012, 7:16 pm

You should put a tow release on it Daron

With that big engine and thick wing section, it'll make a great tug! Surprised

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PostSubject: Re: Big Wot 4    Thu 26 Jan 2012, 9:33 pm

Worzey wrote:
You should put a tow release on it Daron

With that big engine and thick wing section, it'll make a great tug! Surprised


That is a good idea. where would you put it and how do I make it??
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PostSubject: Re: Big Wot 4    Thu 26 Jan 2012, 9:43 pm

Just behind the C of G in the middle of the wing.

Basically, a servo pushes a rod through the wing to then pertrude out of the top surface. You need to look at mine on Sunday to see what I mean
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PostSubject: Re: Big Wot 4    Thu 26 Jan 2012, 10:02 pm

I will do mate. Have just been looking on a few forums just on this and its just as you say...

So its going to have mini camera on plus a tow hook nice.
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PostSubject: Re: Big Wot 4    Thu 26 Jan 2012, 10:33 pm

A camera too eh?
You could tow up the camera!

Actually, a camera mounted on a glider which is being towed up gives excellant results!
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PostSubject: Re: Big Wot 4    Fri 27 Jan 2012, 10:03 am

you could put the camera on it as it is a Flycam one....
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PostSubject: Re: Big Wot 4    Fri 27 Jan 2012, 9:02 pm

That's gonna be something special mate...looking really good Bravo Bravo

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PostSubject: Re: Big Wot 4    Thu 02 Feb 2012, 5:07 pm

At bloody last I have Finished the Build, All linkages on and working, Electrics in & CDI unit all in. I just need to bring it down stairs and balance it. I will then take a final picture of it. OH not put the tow release on yet as I want to see that after all this that it Bloody flies .... Angel
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PostSubject: Re: Big Wot 4    Sun 05 Feb 2012, 1:29 pm

At last I have finished my Wot4 xl and I am pretty pleased with it.





Just want some good and slightly bit warmer weather to fly it. Glee
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PostSubject: Re: Big Wot 4    Thu 23 Feb 2012, 9:43 pm

Well Friday is its maiden day, So will let you know what happens affraid I have a bin bag in the car lol!
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PostSubject: Re: Big Wot 4    Fri 24 Feb 2012, 3:17 pm

Bunch Well I am a happy Bunny today, after a little tinkering on the electrics for the engine (connection wrong way) and a tweak on the needles John had the engine puring.
So time for the test flight Here you go John NO you can do this your very capable! Oh well I thought yeah I am so opened up the throttle and climbed up Hmmm very tail heavy I had to pull the sticks right back to get level flight and also its going to need a small amount of weight on the left wing as it wanted to tip right all the time and again I had to hold a bit of left stick to keep it level. Then Engine cut bugger luckily in the right place for me to glide in.
So John had a strip of weights so we put them on which helped a bit but I still need more and once again engine cut, but I landed it but the undercarriage needs to be bigger consequently broke my prop.

But a very successful day in my mind in that;

1, had a fly after not being up since last December

2, gave the new plane its first flight on my own rather than someone doing it for me.


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PostSubject: Re: Big Wot 4    Fri 24 Feb 2012, 3:51 pm

Well done
Am surprised it was tail heavy if you had to pull the sticks back??
At least it will live to do another day!
Maybe time for you to do your A cert?
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PostSubject: Re: Big Wot 4    Fri 24 Feb 2012, 4:15 pm

Worzey wrote:
Well done
Am surprised it was tail heavy if you had to pull the sticks back??
At least it will live to do another day!
Maybe time for you to do your A cert?

Cheeky bugger....Took that 2 months after first starting..... lol!
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PostSubject: Re: Big Wot 4    Fri 24 Feb 2012, 4:24 pm

scratch


Last edited by GBEE on Thu 09 Aug 2012, 10:07 pm; edited 1 time in total
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PostSubject: Re: Big Wot 4    Fri 24 Feb 2012, 4:27 pm

GBEE wrote:
Show off...lol. Well done...tin hat bravo!

Thaks Gary, never had chance to think about it just get on and do it.
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PostSubject: Re: Big Wot 4    Fri 24 Feb 2012, 5:36 pm

Good work mate Bravo
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PostSubject: Re: Big Wot 4    Sun 26 Feb 2012, 4:45 pm

Worzey wrote:
Well done
Am surprised it was tail heavy if you had to pull the sticks back??
At least it will live to do another day!
Maybe time for you to do your A cert?

After talking to you today! yes I see what you are saying Bravo that's right it wanted to drop a nose so I had to pull the sticks back to raise the nose & hold the aileron over to the left as again it wanted to drop a right wing.
I must find out what the C/G is on your XL and try to get it close to that. Or at first quarter of the wing back whatever that turns out to be. Otherwise the engine had plenty of pull as I only had about quarter to half throttle, that is before it died on me.

Also today I had fully intended to take up the edge for the first time with this new transmitter but I did feel very self conscious that every one would be watching me so made the decision to do it in the week when it is just John, Mike and myself. I seam to remember someone saying to Adrian "Don't listen to these fuckers as all they want to see is a spectacular crash" So I was not going to be pressured into doing it today.
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PostSubject: Re: Big Wot 4    Fri 06 Jul 2012, 11:50 am

What a great feeling you have when a plane that you built from scratch finally flies well, the engine ran faultless and never missed a beat even for a crrc pro 26cc engine it was great.

After around five circuits John noticed something fly off I said it looked like a bit of covering but when I flew past we could see that it was one side of the elevator, so John said I will take it and bring it into land just in case we needed to put a bit of rudder in but no it came in on a smooth flite angle and just dropped itself on the ground.
I have just finished making a new elevator and this time will add a few pins in the hinges to sop them moving only with the extra vibration from the engine it gives that extra bit of security.

I just now look forward to the next day I can get out and give it a fly. Angel
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