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Model Forum / Radio Controlled / Air Models / March 2008



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Another electric flight question

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M.H. - 21 Mar 2008 19:20 GMT
The thread above on Lipos and speed controllers illustrates both the
problems facing newcomers to electric flight and also the help which others
are willing to give.  People are very helpful but you have to know what
questions to ask if you want to tap into this source of knowledge. Magazines
are fine but they tend to deal with bite-sized bits so don't really come
into their own until you have some grasp of the subject as a whole. The
Internet is also great for answering specific questions but it is hard to
get a sense of the whole and much of it is very out of date. For example the
Beginner's Guide on the BEFA website was written in 1996. Being an old
fashioned sort of bloke I would love to sit down with a good book secure in
the knowledge that, if I put the time and effort in, I will acquire a good
grasp of all the essentials. I am a very experienced radio modeller but only
with gliders and the noisy oily things. I would certainly like to give some
serious thought to electric flight and would be delighted if any of you
experts could point me in the direction of a book which might meet my needs.
Thanks.
Ron van Sommeren - 21 Mar 2008 20:47 GMT
Goedendag ;-)

> The thread above on Lipos and speed controllers illustrates both the
> problems facing newcomers to electric flight  ...

E-flight FAQ's
Everything you want to know about electric flight
http://www.rcuniverse.com/forum/m_7100376/tm.htm

http://www.ezonemag.com

-> faq

Red Scholefield's battery clinic

http://www.rcbatteryclinic.com/

Prettig weekend ;-) Ron van Sommeren

near Nijmegen, the Netherlands

int.electric fly-in http://home.hetnet.nl/~ronvans/
M.H. - 22 Mar 2008 12:34 GMT
> Goedendag ;-)
>
[quoted text clipped - 18 lines]
>
> int.electric fly-in http://home.hetnet.nl/~ronvans/

Thanks for your reply, Ron. I genuinely appreciate the help offered. I have
followed your suggested link and started reading Ed Anderson's e-book.
Again, I am aware that he has gone to a great deal of trouble to help others
and it seems churlish to be critical but it does illustrate my difficulty.
There are confusing errors which hopefully would be edited out in a
commercially produced book e.g. similar motor where he probably means
smaller motor.

All was going well until I was presented with the statement "In NiMh that
would probably be a 2/3 or 4/5 A pack". I don't doubt that this is as simple
as the difference between straight and 5% fuel is to me but, to the
uninitiated, this terminology is meaningless without some explanation.
Helpfully a link is provided but, this being the Web, the link is now dead
so it is off to Google to find out what a 2/3 A pack is. I find the answer
but, in the process, another issue is raised which sends me tumbling around
cyberspace and I gradually lose the will to live. I realise that, even with
a book, it may be necessary to cross-refer backwards and forwards but at
least I would be searching within a finite space rather than floundering
around the Internet, learning lots, but unsure whether I have missed
something important. Accordingly I come back to my original question. Can
anyone recommend a good book to introduce an experienced radio modeller to
electric flight?
The Natural Philosopher - 22 Mar 2008 13:13 GMT
>> Goedendag ;-)
>>
[quoted text clipped - 40 lines]
> anyone recommend a good book to introduce an experienced radio modeller to
> electric flight?

Nickel cells conme in sizes derived from old dry cell standards..a D
cell is a torch battery, a C cell is smaller, and a Sub C is smaller
than that.

AAA is anothert size, as is A and AA, and 2/3A is a 66% long A cell.

I think most of this is summarised on the overlander site somewhere.
www.overlander.co.uk

Oh. Not any more..

Anyway, its all fairly redundant now since most people have 'gone Lipo'

The E-zone is the best place for information.
Ron van Sommeren - 23 Mar 2008 22:06 GMT
Goedendag Malcom and all,

> Thanks for your reply, Ron. I genuinely appreciate the help offered. I
> have followed your suggested link
The links I provided are more for a bit of quick skimming. Then, once a
problem or lack of knowledge pops up, you remember the relevant subject(s)
in those links. I cannot advise you on a good primer/book on e-flight,
sorry, I don't know one. I can only sympathise with you, I myself am a man
of the book ;-)  too.
Starting in a hobby can, at best, be confusing. No news there, been there,
done that. You could tackle it the other way round though. Choose a proven
electric setup (plane, battery, charger, motor) that other people in your
club are using and advance (your knowledge) from there and from them. Visit
some e-flight meetings too maybe?
http://www.rlmahoney.co.uk/event-page.htm
http://www.befa.ef-uk.net/events.htm

As the Philosopher said, www.rcgroups.com is your friend.
Also
www.rcmf.co.uk
www.rctalk.co.uk

Vriendelijke groeten ;-) Ron
near Nijmegen, the Netherlands
int. E fly-in http://home.hetnet.nl/~ronvans/
Vass - 25 Mar 2008 15:04 GMT
> The thread above on Lipos and speed controllers illustrates both the
> problems facing newcomers to electric flight and also the help which
> others are willing to give.

I have to say, the info given here from others on my post was very
informative and sorted me out suitably.
To get every possible combination of equipment with it's pro's and con's
intoa book would be difficult.
and 3 years down the line, chances are it would be out of date.
The way I started in IC flying was to join a club, I learnt everything from
fuel tank set ups and
offset engines through learning to fly, and passing B and A certificates
(god that ws a long time ago)
eventually putting on a display at RAF cranwell at a full size air show,
alongside Steve Elias
I have always found club members informative and willing to help. Join a
local club MH, its the best way.
Signature

Vass

M.H. - 26 Mar 2008 10:43 GMT
>> The thread above on Lipos and speed controllers illustrates both the
>> problems facing newcomers to electric flight and also the help which
[quoted text clipped - 13 lines]
> I have always found club members informative and willing to help. Join a
> local club MH, its the best way.

Thank you all for your help. I am a club member and have been for many years
but the majority fly IC and there is little electrical expertise around.
Yes, most people are very helpful but, in my experience, the best way to
obtain really useful answers is to know the right questions to ask in the
first place. That is why I was looking for a good book as a starting point
but the conclusion appears to be that none exists. I guess I will just stick
to IC. Thanks.
Vass - 26 Mar 2008 13:21 GMT
> Thank you all for your help. I am a club member and have been for many
> years but the majority fly IC and there is little electrical expertise
[quoted text clipped - 3 lines]
> starting point but the conclusion appears to be that none exists. I guess
> I will just stick to IC. Thanks.

why give up that easily - lots here are happy to help, why not become the
expert at your own club and assist others
then, make some money with the obvious book that needs writing?
Signature

Vass

The Natural Philosopher - 26 Mar 2008 13:58 GMT
>> Thank you all for your help. I am a club member and have been for many
>> years but the majority fly IC and there is little electrical expertise
[quoted text clipped - 7 lines]
> expert at your own club and assist others
> then, make some money with the obvious book that needs writing?

The book exists. Its online and its called www.rcgroups.com
Ron van Sommeren - 27 Mar 2008 00:19 GMT
Goedendag Malcolm ;-)

> ... That is why I was looking for a good book as a starting point but the
> conclusion appears to be that none exists. I guess I will just stick to
> IC....

Sissy! ;-)

Who said 'threats' are counterproductive ;-) ? I completely forgot
Astrobob's (Bob Boucher) book on e-flight
http://www.astroflight.com/

On http://www.befa.ef-uk.net/beginner.htm under Electric Flight Text Books /
Leaflets etc. you'll find  references to printed stuff.

How appropriate that a man of the book should guide his club into the future
...

Vriendelijke groeten ;-) Ron van Sommeren
near Nijmegen, the Netherlands
int. electric fly-in http://home.hetnet.nl/~ronvans/
 
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