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E-Diamond

All non-scale topis should go in here for discussion.
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Peter Balcombe
Posts: 1070
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: E-Diamond

Post by Peter Balcombe »

Well, I bit the bullet & ordered some parts from Stan Yeo at Phoenix Model Products on Thursday evening & these arrived today.
First up, was to cut 60mm off the front of the fuselage (in 2 bites - just in case) & slide the 41.8mm Glass Fibre 35 size motor mount in from the canopy opening.
I fitted a long M6 bolt into the central hole of the mount, both to help pull it forward & also to check alignment of the motor axis, before fixing in position with polyester resin, leaving a resin fillet on both sides.

The 45mm cool nose spinner fits nicely once the fuselage cut has been cleaned off parallel to the spinner backplate.
The rest of the airframe is now ready for covering, so can also complete that using transparent Oracover.
Photos to follow tomorrow when daylight improves chance of clear images.

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Peter Balcombe
Posts: 1070
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: E-Diamond

Post by Peter Balcombe »

Pics of the installed motor mount plus view with cool nose spinner in position.
Also a shot of the cockpit area with 3S Lipo & 60A ESC in position.
Can now get the model covered and make a pair of NACA duct style air outlets under the wing roots.
Also need to check the model balance to see how much lead is needed.
Attachments
Mount for 3548/05 motor
Mount for 3548/05 motor
Spinner fitted
Spinner fitted
ESC and battery
ESC and battery

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Peter Balcombe
Posts: 1070
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: E-Diamond

Post by Peter Balcombe »

Model now covered & control surfaces hung so its time to do an overall weight & CoG check.
With just a couple of small items to finish off (canopy latch, Fuz. MPX connector cable to fit, Unilocs to fit, flight battery tray & wing servo links) the overall weight comes out at 1.82KG (4lbs) and the model balances 75mm back form the LE (33% of inner wing) complete with 3S Lipo, but no additional nose weight, so I am very pleased :)
Hopefully, everthing can be finished off, ready for a maiden next week, if the weather calms down ;)
Attachments
Overall model
Overall model

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Peter Balcombe
Posts: 1070
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: E-Diamond

Post by Peter Balcombe »

The eagle flew this morning at the Woodspring Wings field.
Pleased to report that after a clubmate gave a firm flat hand launch for a test glide, we had to walk 30m to collect her.

The subsequent hand launch under 50% power saw a 25-30 degree climb away with no need for any power trim.
Subsequent flying was gentle & the stall is a non-event. The only ballast fitted is approx 80gm taped to the forward part of the 3S Lipo. A gentle dive test gave a gentle hands off recovery.

A 2nd flight was done using a self launch, which proved to be no problem with another steady climb out
I will probably try removing the small ballast weight for the next flight but all looking very promising.

These initial flights were conducted with flaps disconnected as the RH one didn’t want to work for some reason :(
(Wiring checked at home & everything works ok now)
So maybe able to try some thermal flap during the next outing.

Just for Brian, here are a couple of shots of the electrics. I am using a small G-RX8 FrSky Rx ((with built-in altimeter/vario) which is velcroed to the side of the Fuz just behind the Elev servo.
Attachments
Cockpit Left.jpg
Cockpit Right.jpg

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B Sharp
Posts: 718
Joined: 19 Mar 2015, 17:18
Location: Perthshire

Re: E-Diamond

Post by B Sharp »

Nice to hear that the maiden went well Peter. There appears to be plenty of room in there for all the sparky bits.
Brian. :)

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Peter Balcombe
Posts: 1070
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: E-Diamond

Post by Peter Balcombe »

Flying pics now obtained, so that brings the build thread to a conclusion.
Attachments
Fly_pic5_crop.jpg
Fly_pic3_crop.jpg
Fly_pic2_crop.jpg
Fly_pic4_crop.jpg
Fly_pic6_crop.jpg

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Martynk
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Joined: 23 Mar 2017, 21:23
Location: Haslington
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Re: E-Diamond

Post by Martynk »

That looks superb. A beautiful looking glider

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