Auto Skunkworks - AC20 EPP build - Page 4 - RC Groups
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Mar 25, 2015, 07:17 AM
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106flyer's Avatar
Thank you all to the Positive comments, I was unsure of the green but with the White and black it really sets things off.

If the radio issue is solved then looking to fly this loads..

Only thing which needs changing in the design is the mast construction to get that characteristic 'rake forward' profile. This prototype has the correct head position for a good 'hang angle' but its too upright. A bit more creative CAD time for Tim and then another will be built which I hope is even more realistic and scale like side profile....

Looking forward to seeing Graham's HK version fly and this EPP model could be a budget alternative.. Whippit inspired of course !!

Steve
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Apr 22, 2015, 01:32 PM
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Not the greatest picture due to the low light but one of it flying at Rich Atom trimming day last Sunday . The new Rx sorted the problem and several good flights made.

On to the plan mods from the learning from the prototype but well pleased

Steve
Apr 22, 2015, 01:45 PM
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gyronuts's Avatar
some pictures. from the atom trimming day
bill
Apr 22, 2015, 02:46 PM
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Cheers Bill and hope the weather is again kind on the second one on the 3rd May

Steve
Apr 22, 2015, 03:39 PM
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some more
May 09, 2015, 04:46 AM
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106flyer's Avatar
Right, here we go again, model number 2 to test the modified plan details...

Learning from the prototype included and 3 changes
1. Slightly longer nose to help balance and nose wheel mounting strength
2. Tail boom spar angle kicked up to try and help torsional stiffness
3. Head position the same but mast angle into body changed to try and create the characteristic rake forward profile...
Steve
May 09, 2015, 04:06 PM
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Legs done, nose leg modified to show the characteristic rear trail....
May 09, 2015, 05:19 PM
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britinoz's Avatar
Steve I have been following this thread with great interest. I was wondering if it had crossed your mind to extend the forward part of the boom to meet up with the nose wheel assembly that way making the a little more rigid.
Happy Landings
Chris...
May 10, 2015, 04:07 AM
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Hi Chris,
Yes that was considered at the start but as the boom enters the fuselage at an angle and with the battery position thought it might add weight for not much advantage. A landing on the first broke off the nose from the top so the ply plates were cut in and seemed much stronger.
Main centre keel now ready to glue with the centre hole for the u/c plate
Steve
May 10, 2015, 04:39 AM
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106flyer's Avatar
Think I am going to try a scale 2 blade set up on this one too
My choice of mini servi 4kg at 4.8v ... Thanks Chris
Last edited by 106flyer; May 10, 2015 at 02:56 PM.
May 10, 2015, 04:11 PM
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Taking shape
May 11, 2015, 06:27 AM
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106flyer's Avatar
Quick Question chaps, as the originator of this thread, How do i change/modify its title please ??

Looked throught the links etc and cant seem to find how too....

Steve
May 11, 2015, 06:36 AM
It's all in the Blades!
SafeLandings's Avatar
Steve,
Go to your first post and click on edit, at the bottom of the edit box that opens click 'go advance'. This opens up another box but also the title of the thread above it, edit away.

Hope this makes sense?

Rich
May 11, 2015, 11:09 AM
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106flyer's Avatar
Spot on Cheers Rich - Hope to see you Sat ??

Steve
May 11, 2015, 02:16 PM
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106flyer's Avatar
Some tail boom reinforcement, tied to the fuselage post . Should help with tail torsional stiffness


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