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DE Wing Dihedal
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Topic: DE Wing Dihedal (Read 8810 times)
DErwin
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Posts: 18
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Eagle Type: Double Eagle
DE Wing Dihedal
«
on:
May 10, 2018, 01:20:23 AM »
Hi and good day to all.
Finally back in building my DE. I will be fitting the wings to the fuse and attaching the front and rear spars to the wings.
I can not seem to find in the plans the required dihedral for the wings. Can someone please help me out.
Thanks and I hope some one can help me on this soon.
Happy building
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MrG
Full Member
Posts: 193
Total likes: 12
Builder - Pilot
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Eagle Type: DE E-77
Re: DE Wing Dihedal
«
Reply #1 on:
May 10, 2018, 02:20:42 AM »
3in i set mine i think, i dont think its in the drawings
if you dont get an answer ill measure up tomorrow
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MrG
Temora Airport Australia
1st Aussie DE built/flown
19-8866
-----------------------------
1 Oct 2015 First Flight
Feb 2019 - 155 hrs Flown
March 4th removed from service for Cabin Mods
DErwin
Jr. Member
Posts: 18
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Eagle Type: Double Eagle
Re: DE Wing Dihedal
«
Reply #2 on:
May 10, 2018, 03:42:50 AM »
Hi MrG,
Thanks for the reply. I
just want to clarify,
You mean to tilt up the wing tip by 3-inches from level?
Thanks again
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MrG
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Eagle Type: DE E-77
Re: DE Wing Dihedal
«
Reply #3 on:
May 10, 2018, 01:37:01 PM »
Yes Ill get back to you on measurement in about 3 hrs
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MrG
Temora Airport Australia
1st Aussie DE built/flown
19-8866
-----------------------------
1 Oct 2015 First Flight
Feb 2019 - 155 hrs Flown
March 4th removed from service for Cabin Mods
DErwin
Jr. Member
Posts: 18
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Eagle Type: Double Eagle
Re: DE Wing Dihedal
«
Reply #4 on:
May 10, 2018, 09:47:50 PM »
Hi MrG,
Were you able to get the measurements. Sorry to rush up on you.
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MrG
Full Member
Posts: 193
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Eagle Type: DE E-77
Re: DE Wing Dihedal
«
Reply #5 on:
May 11, 2018, 04:48:14 AM »
No Friday was a bad day
in morning is sat ill do then i dont have to go any were its only in next doors hanger
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MrG
Temora Airport Australia
1st Aussie DE built/flown
19-8866
-----------------------------
1 Oct 2015 First Flight
Feb 2019 - 155 hrs Flown
March 4th removed from service for Cabin Mods
Kiwi55
Full Member
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Cabin Eagle
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Eagle Type: Cabin Eagle
Re: DE Wing Dihedal
«
Reply #6 on:
May 11, 2018, 07:12:35 AM »
3" higher than level at the wing tips is the measure for the cabin eagle. I presume the DE would be the same.
...Paul
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DErwin
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Eagle Type: Double Eagle
Re: DE Wing Dihedal
«
Reply #7 on:
May 11, 2018, 02:41:14 PM »
Paul,
Thank you so much for the confirmation on the 3'' dihedral.
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MrG
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Eagle Type: DE E-77
Re: DE Wing Dihedal
«
Reply #8 on:
May 11, 2018, 02:47:22 PM »
Yes correct
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MrG
Temora Airport Australia
1st Aussie DE built/flown
19-8866
-----------------------------
1 Oct 2015 First Flight
Feb 2019 - 155 hrs Flown
March 4th removed from service for Cabin Mods
DErwin
Jr. Member
Posts: 18
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Eagle Type: Double Eagle
Re: DE Wing Dihedal
«
Reply #9 on:
May 11, 2018, 10:37:02 PM »
So it is definitely three(3) inches up on the wing tip from level for the dihedral .
Thank you so much for the response and clarification.
Thanks MrG and Paul. Will send a picture of the set-up later.
Cheers and blue skies to all.
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MrG
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Eagle Type: DE E-77
Re: DE Wing Dihedal
«
Reply #10 on:
May 12, 2018, 02:49:43 PM »
to be honest after all the mods ive done to mine and flying 120 hrs on it, i would doubt even if you were a inch out up or down you would
not notice the difference - the main thing is the wash out in the wing makes a big dif. how it stalls
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MrG
Temora Airport Australia
1st Aussie DE built/flown
19-8866
-----------------------------
1 Oct 2015 First Flight
Feb 2019 - 155 hrs Flown
March 4th removed from service for Cabin Mods
DErwin
Jr. Member
Posts: 18
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Eagle Type: Double Eagle
Re: DE Wing Dihedal
«
Reply #11 on:
May 13, 2018, 03:22:48 AM »
Yes I agree with you MrG.
I am planing to set the wash-out as suggested on the video by Leonard. The wing root is set at a positive angle
2-Degrees incidence as per plan on the DE. T
he wing tip is set level with the horizontal of the fuselage.
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azevedoflyer
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Posts: 21
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Eagle Type: Double Eagle
Re: DE Wing Dihedal
«
Reply #12 on:
April 26, 2020, 05:49:13 PM »
To all:
On a DE, is wing dihedral really necessary?
Do you guys think it (dihedral) makes a measurable difference in handling?
Cheers,
Azevedoflyer
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azevedoflyer
Tom H
Beta testers
Posts: 394
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Built/flew LEU, built/flying DE
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Re: DE Wing Dihedal
«
Reply #13 on:
April 27, 2020, 06:20:04 AM »
Aze, I have had the same thought. Our DE Stubby has the dihedral as per plans. I suspect that no dihedral would not make a significant difference in handling, but it might result in a bit more speed. These aircraft are relatively light, and even light breezes can lift a wing, requiring the pilot to actively fly the plane, and I don't feel that the dihedral provides much stability.
Only my thoughts based on our DE, mind you.
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Tom H
Stubby, a BDE
Treehugger, LEU
txaggie88
Newbie
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Eagle Type: building an XL
Re: DE Wing Dihedal
«
Reply #14 on:
April 28, 2020, 07:13:57 AM »
Wing dihedral is one of the primary factors affecting roll stability.
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DE Wing Dihedal
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