Phil's news letter 15/06/2015



Telephone 01453 826164 or 07966 175193
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Circulation 240

Nerd bit

Power. If you lift a 2 kg weight 1 meter in 1 second, then the rate of energy conversion is 2 x 10 = 20 Joules per second, or 20 Watts of power.

My electric glider weighs 2 KG and climbs at 10 metres per second, that's 200 watts; the input is 400 watts so it's about 50% efficient

The motor is a mega 16/25/3 through a 4.4 Maxon gearbox to a 13 X 7 prop, 4s 1500 ma Lipo
Weight111 g
No load current Io 1.9
Size28x41,5 φ x L mm
No load 1700 RPM/V
Max. current 30 A
diameter28 mm
Diameter of shaft 3,2 mm
Max speed
55 000 revolution/min

This motor would take more current for a short period

My Self launching glider takes 22 seconds to reach the maximum 200 metre esoaring competition height



You can borrow one of my flight loggers if you want, you can install the RC electronics software to read the data, or I can do it and send you the graphs like the one above.
The device tries to estimate the height to switch off the motor so that the model reaches the height it is set to; above the motor switched off at 190 metres and the model climbed another 14 metres

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Video/Photos

 

 

My videos

https://www.youtube.com/user/philscsa/videos

SCSA videos

https://www.youtube.com/channel/UCuMWKu3Q-lxjXMSeWSgiWLg

GMFC Videos

https://www.youtube.com/channel/UCOJw26aVYS3xW4PJAW6xS-A

MSA videos  on the Flickr pages

https://www.flickr.com/photos/123634149@N03/sets/

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News

 

 

Solar impulse

 

Live YouTube

 

Web site

 

Spec

• Max bank angle: 5°
• Take off speed: 26 Kts (47 km/h)
• Take off within only 165 yards (150 m) approx.
• Max. Cruise Altitude: 8,500 m (27,000 ft)
• Min. speed at sea level: 20 Kts (36 km/h)
• Max. speed at sea level: 49 Kts (90 km/h)
• Min. speed at 27,000 ft: 31,5 Kts (57 km/h)
• Max. speed at 27,000 ft: 77 Kts (140 km/h) 
• Wingspan: 72m
• Empty weight: 2300 kg
• Autonomy: theoretically unlimited

Click for larger image

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F3K

 

 

 

 

Thanks everyone for turning out. Despite how it looked this morning, we managed to get 8 rounds in. Conditions this afternoon turned out to be quite nice in the end!

Tony

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F3B

 

Blog

Dates
League 3 - Wetlands - 27th/28th June.
Reserve date possibly 4th/5th July.
League 4 - Wetlands - 25/26th July.
Reserve date possibly 1st/2nd August.
League 5 - RAF Cranwell - NATIONALS - 30th August ONLY.
League or Nationals Reserve 1 - TBC - 26/27th September.
League or Nationals Reserve 2 - TBC - 17/18th October.
If required a possible further date on the 24/25th October may be flown. This is the weekend the clocks go back.

To enable as many contests as possible to take place, a decision will be made on the Friday evening preceding the contest or reserve date regarding the day (Saturday or Sunday), or whether the event will run (i.e weather call). All reserve dates are dependent on sites being available and enough competitors being able to attend.

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F3F
 Dates
14th June BMFA L3 - Scotland
5th July Ebor Electric Fly-in - YMAS
19th July BMFA L4 - Wales
1st-2nd Aug Slope Glide - Wales
22nd-23rd Aug English F3F Open - Whitesheet
11th-13th Sept Welsh Open
27th Sept BMFA League 5 - Long Mynd
26th / 27th / 28th Sept - Welsh Open
18th Oct BMFA League 6 - Eastbourne
25th Oct - Reserve Date

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Esoaring

 - Sunday June 14th - East Worldham - Hampshire

 

 

After a dull start with some low cloud, the weather improved significantly by late morning, to provide some excellent soaring conditions.
Chris Foss once more came through in top position with Ken Manley and Dave East following close behind. Despite not winning any slots, Bernie Jones scored consistently well to take 4th place in Open.
Yet another great day at East Worldham!
Thanks to all competitors for making it so easy to run and special thanks to Marlene for collecting entry fees and scoring.
Also thanks to Phil H for the photos!
AND THE RESULTS WERE

Martin

events list

http://www.esoaring.net/index.php?page=competition-calendar-2014-2

Barcs Forum

 
Barcs Forum http://www.barcs.co.uk/forums/forum/47-electric-soaring/
http://www.barcs.co.uk/forums/forum/47-electric-soaring/
 
Esoaring forum
http://www.esoaring.net/forum/search.php?search_id=active_topics&sid=e38cd95a8259f58c150222c92837d0a3

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Events http://www.esoaring.net/index.php?page=competition-calendar-2014-2

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F3J/F5J news

 

http://www.flyquiet.co.uk/smf/index.php?board=2.0


BARCS FORUM

Interglide 27 - 28th Oxford Marsh Gibbon

Interglide
Starts 27/06/2015 at 09:00
Ends 28/06/2015 at 17:00
VenueTudor Farm, Edgcott
Location Tudor Farm, Marsh Gibbon Road, Edgcott, HP18 0UA
Summary £30 entry fee. Entry via Interglide website.
Disciplines Soaring
Website http://www.interglide.co.uk/

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07/06/15
Both models with speed controller and futaba receivers and servos.

 

Also miscellaneous items.  Lipos, receivers, servos, speed controllers, chargers.

 

Enquiries invited.

 

John Mandeville      01453 751808