Plus F5J - RC Groups
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Mar 21, 2017, 08:35 PM
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Plus F5J


Exciting new entry for F5J, the Plus. This unique 3.72m design by Joe Wurts uses a low drag pusher configuration. By far the lightest weight in its class at under 950 grams.

Stay tuned, more to follow.

Now a little eye candy.

Barry
Kennedy Composites

PLUS F5J first fly new model from Vladimirs Model (0 min 13 sec)
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Mar 21, 2017, 08:47 PM
Where is the lift?
cptsnoopy's Avatar
Can't wait for next month in Vegas!

Charlie
Mar 21, 2017, 10:46 PM
Cognitive dissonance
kcaldwel's Avatar
Lots more here, click on the tabs:

http://f3j.in.ua/plus-f5j.html?#tab8

Kevin
Mar 21, 2017, 10:57 PM
Old enough to know better.
I can see sliced hands.



Cheers, Brad. 🛩
Mar 21, 2017, 11:38 PM
Everything's A Compromise
Larrikin's Avatar
Cool
It offers some insight as to whether spans will stay <3500mm.

Might want to order some spare wing joiners if you're a lawn-dart lander though.

Joiner Image
Mar 22, 2017, 12:06 AM
Time for me to Fly...
Mr. Wiz's Avatar
Quote:
Originally Posted by udlman
I can see sliced hands.



Cheers, Brad. 🛩
I had the same thought.
Latest blog entry: Some new engines some older
Mar 22, 2017, 12:23 AM
Everything's A Compromise
Larrikin's Avatar
Quote:
Originally Posted by Mr. Wiz
I had the same thought.
Apparently not a problem.

From one who's thrown it
Mar 22, 2017, 01:08 AM
Time for me to Fly...
Mr. Wiz's Avatar
It's going to take more than that to convince me it's not a problem. I'd never throttle that up before the release.
Latest blog entry: Some new engines some older
Mar 22, 2017, 01:13 AM
Registered User
Tuomo's Avatar
Quote:
Originally Posted by Mr. Wiz
It's going to take more than that to convince me it's not a problem. I'd never throttle that up before the release.
According to F5J rules you must launch plane with motor running.
Mar 22, 2017, 02:32 AM
Everything's A Compromise
Larrikin's Avatar
Who'll be the first to remove the props and put a tow hook under it for those "first round of the day" F3J flights?
Mar 22, 2017, 02:45 AM
Time for me to Fly...
Mr. Wiz's Avatar
Quote:
Originally Posted by Tuomo
According to F5J rules you must launch plane with motor running.
I know.... but I certainly wouldn't throw it the way the guy in the video did. Maybe with a full follow thru, with my hand continuing forward and down it would be ok. My only worry is remembering to do that every time and then there is the wind.
Latest blog entry: Some new engines some older
Mar 22, 2017, 02:54 AM
In F3J size does matter!
roydor's Avatar
Is it a 5 servo wing? Looks like it...
Mar 22, 2017, 04:02 AM
Registered User
yes, it has 5 servos in the wing: 3 x MKS 6110 for 3-flaps and 2 x KST xt08 H for ailerons.
Sounds like a complication, but i think gives some room for experiments to find out a better flap position during thermalling: use more in central and less in outer flaps surfaces.
Mar 22, 2017, 06:06 AM
In F3J size does matter!
roydor's Avatar
Don't know about performance, handling or quality which should be excellent as it comes from Vladimir, but the amount of engineering that went into this model is very impressive.
So many details and small parts in this model that I can only assume the amount of work that went into the obviously large number of molds and jigs.

Would be interesting to see how the cost compares to other planes on the market.

Wondering about the details of the prop shaft, should be interesting to see how Vladimir solved the obvious problems, I'm sure he did, just wondering his approach to it.

What are the motor options and specs for this model?

Also, why just 3.7 meters, looks like a compromise in performance.

Is the whole plane solid core or are there hollow molded parts in the wing?
Hard to tell from the pictures.
Mar 22, 2017, 07:52 AM
Registered User
The whole wing is a solid core, like snipe. 3.7 is Max span considering a small central panel as Vladimir wanted to have tails tubes inside the wing. I will publish more pictures from my build soon.


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