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TYPE 13 PETREL 1/4 SCALE**

Let us all watch your new project progress.
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chris williams
Posts: 1543
Joined: 10 Mar 2015, 10:50
Location: Blandford Dorset

Re: TYPE 13 PETREL 1/4 SCALE**

Post by chris williams »

Lionel, don't get too hung up on these supports; they are only temporary and have no effect on the final shape of the wing, other than the angle of the gull break. Just allow the TE support to extend under the root rib and line up the other end accordingly... (Note: this design has been simplified from the full size, where the TE also has a gull bend in it)
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lionel_69
Posts: 11
Joined: 21 Nov 2022, 20:18
Location: Lyon

Re: TYPE 13 PETREL 1/4 SCALE**

Post by lionel_69 »

Hello everyone,

Juste finish the planking of the wings. I started with the underside, and an unexpected effect occured: the wing bended a little to the front as the planking dried.
2023-02-04 018.JPG

I corrected by soak the spar and plankig with an abundant solution of ammonia, and then rig it with weights and clamps.
I then have to make the spoilers
2023-03-06 002.JPG
2023-03-06 004.JPG

Now i have to prepare the wing roots for assembling the wing to the fuse....
Regards
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Trevor
Posts: 159
Joined: 19 Jul 2016, 16:29
Location: Hampshire
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Re: TYPE 13 PETREL 1/4 SCALE**

Post by Trevor »

Very neat work on those spoiler hinges.
lionel_69
Posts: 11
Joined: 21 Nov 2022, 20:18
Location: Lyon

Re: TYPE 13 PETREL 1/4 SCALE**

Post by lionel_69 »

Hello everyone,

I have to post a big update about the model : It has flown !
not for very long time but....

I finally completed the process of planking the wing, the fuse, etc...
covering could start:
IMG_20230608_094206.jpg
IMG_20230527_222121.jpg

One fast forward step, and we are on the club ground...
2023-06-29 002.JPG

A friend of mine lend me his launching cart for the maiden

2023-06-29 005.JPG

We did the range test, the full throttle test, the fast move all the servos ...
and we were ready to fly.

The plane took off after 15m of rolling, and climbed rapidely, thanks to the 1200w motor, and then "Pang!!" the propeller broke !!
I was at 10-12m high, just in front of a nice sunflower field... I took the decision to U-turn and landed it backwind.
The glider handled well and I could land it without damages, but i've seen less stressfull maiden....
Well,I have to buy a better prop, and fix a hook to launch it with a bungee.

Next time I hope there'll be a video.

Regards
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Trevor
Posts: 159
Joined: 19 Jul 2016, 16:29
Location: Hampshire
Contact:

Re: TYPE 13 PETREL 1/4 SCALE**

Post by Trevor »

Well done! That must indeed have been quite a stressful first flight.

Trevor
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chris williams
Posts: 1543
Joined: 10 Mar 2015, 10:50
Location: Blandford Dorset

Re: TYPE 13 PETREL 1/4 SCALE**

Post by chris williams »

Brave to turn back at that height, Lionel, so well done...!
lionel_69
Posts: 11
Joined: 21 Nov 2022, 20:18
Location: Lyon

Re: TYPE 13 PETREL 1/4 SCALE**

Post by lionel_69 »

It has flown !
And very well ! I'm very happy with the handling and the speed...The landing is very easy, and the flaps effective.
I added a hook to be able to launch it with a bungee, here is the video, enjoy !



Best regards
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