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Author Topic: Let's talk E20  (Read 64558 times)
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Ross J
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« Reply #775 on: January 28, 2019, 12:25:34 AM »

Here is a closer look. BTW YAK52, I didn't read your last post before I posted these pictures. It must be fate!
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Re: Let's talk E20
« Last Edit: January 28, 2019, 01:33:50 AM by Ross J » Logged
Yak 52
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« Reply #776 on: February 05, 2019, 05:25:35 AM »

That's cool, thanks for the details Ross.

I've just completed a video tutorial on how to build a Peterborough FET timer for our Ferry 500 class:
https://www.youtube.com/playlist?list=PLvBo30AluEW3F4kr9xMJEnNiYFZ7FNHRB

This shows the 8 second timer but obviously the times can be altered to suit.

Jon
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flytyer96
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« Reply #777 on: February 05, 2019, 12:03:42 PM »

Jon
Thank you for your excellent tutorial on "how to build a Peterborough FET timer". Even if I never build a timer, your demonstration of soldering technique as well as useage of jigs/fixtures was a real "eye-opener" for a "soldering challenged" individual such as myself.
John
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Heikki K
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« Reply #778 on: February 05, 2019, 02:33:24 PM »

Yes, excellent for a free-flight toy plane for the youngest ones! What a simple solution, the 9V battery ... charged capacitor ... so neat!
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Yak 52
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« Reply #779 on: February 06, 2019, 01:20:06 PM »

Thanks John and Heikki, glad it was useful - just mostly ideas and techniques I've pinched from other friends and modellers but hopefully helpful for anyone building something similar.

Jon
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Mark G
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« Reply #780 on: February 18, 2019, 05:16:22 PM »

That's cool, thanks for the details Ross.

I've just completed a video tutorial on how to build a Peterborough FET timer for our Ferry 500 class:
https://www.youtube.com/playlist?list=PLvBo30AluEW3F4kr9xMJEnNiYFZ7FNHRB

This shows the 8 second timer but obviously the times can be altered to suit.

Jon


I've just ordered some bits but not the diode, is there a particular one you'd recommend on Ebay?

Thanks.
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Yak 52
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« Reply #781 on: February 18, 2019, 05:55:23 PM »

Hiya,

These are the ones I use: https://www.ebay.co.uk/itm/BAT43-Small-Signal-Schottky-Diode-500mA-30V-ST-Pack-of-5-10-or-25/112753186238?hash=item1a409d15be:m:mZxnWgsStO1rVYkpHT_zEqw:rk:2:pf:1&frcectupt=true

Jon
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Mark G
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« Reply #782 on: February 19, 2019, 03:49:10 AM »



Thanks. I've built a Ferry 500 airframe so hopefully I'll have a timer once the bits come.

Mark.
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Ralph B
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« Reply #783 on: February 23, 2019, 11:11:43 PM »

Does anybody know if the Willamette Models Club will again be sponsoring an E20 event at the 2019 US NATS? I understand they were going to vote on it at this months club meeting.

Ralph B
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flytyer96
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« Reply #784 on: February 24, 2019, 10:31:02 AM »

I don't know, but I certainly hope so!
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Ralph B
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« Reply #785 on: March 03, 2019, 07:26:55 PM »

The January/February 2019 edition of the NFFS Digest contains an announcement that E20 will again be flown at this year's NATS. It will be Tuesday August 6th at 6PM. There are 7 months left to prepare. I hope to see you there.

Ralph B
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flytyer96
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« Reply #786 on: March 03, 2019, 09:21:31 PM »

Good Lord willin' and the creek don't rise...I'll be there flying my second Mini-E. Unless I manage to get one of your Cliche's built and trimmed!
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flytyer96
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« Reply #787 on: March 04, 2019, 07:41:16 PM »

Didn't think my last reply got through, so I tried sending again. Sorry.
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frash
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« Reply #788 on: April 05, 2019, 10:02:17 PM »

E20 ----> C20?

The latest Free Flight Quarterly from Australia (Issue 71) has a 3-page article including plan for a E20  Micro-Starduster of 20-inch span that is powered by a 3-Volt, 10-Farad capacitor charged to 4.1 volts and is flown without a timer. Alexandre Cruz of Brazil is the author. This is issue 71 and many of you will already be subscribers.

Alexandre Cruz suggests calling this craft a C20. This is in FFQ71.pdf.

Fred Rash
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