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Member postings for Alan Davidson 1

Here is a list of all the postings Alan Davidson 1 has made in our forums. Click on a thread name to jump to the thread.

Thread: Ebay sellers...
08/01/2020 19:01:18

My son’s constant anxiety if he fails to come home one day is that his wife will sell his models for what he told her he bought them for🤪

Thread: A new caption competition - winner declared!
27/11/2019 21:03:01

That was lucky, a few feet to the right and you would have had to walk down the hill to get it back!

Thread: Problem with RCM&E archive?
06/11/2019 21:17:12

I have solved the problem. My secure isp blocks the download to give the access problem.

Thanks folks

AD

06/11/2019 21:10:52

Found an interesting occurrence; when I login on computer I can access the archive. When using my iPad it gives me the access problem I describe. Has anyone any ideas as to why and how to cure it?

AD

05/11/2019 20:16:02

The viewer does take some getting used to, but my problem is fairly recent as I had no problem at first. Still heard nothing from the mag people though.

Ad

03/11/2019 10:48:29

When I try and view archive rcm&e mags I get

An Error Has Occurred

I'm sorry but we can't process your request at this time (bad referrer)

Is anyone else suffering from this?

It has been like this for some weeks. I have contacted the mag but not yet received a satisfactory outcome.

AD

Thread: Prop selection for glow to electric conversion
29/06/2019 21:09:28

Thanks guys

will try the smaller prop range for experiment and gently see what results, and then the 2s with the 10x6 prop with a view to using this configuration

Many, many thanks for all the wonderful assistance. I will post again if it all goes well. I will also post pictures of the smoking wreck if it doesn’t.

Thanks again

Al

29/06/2019 20:14:30

Thanks for all the help folks.

The details are

flying weight 1.4kg

46” span, 8.5” cord

the motor is a graupner compact 345z #7738

1500Kv, 7.2 - 11.1 v, 20 - 35A, spinning an 11x6 on 2s and 10x6 on 3s

for the 10x6 the blurb quotes 27A and 11x6 - 32 A. and states the motor is compatible with a model between.75 and 1.5 Kg auw

As I said in my original post, even using the higher volts available from the 3s lipo, the current draw is well outside these guidelines. Hence my uneducated confusion.

The replies trend toward trying a lot smaller prop and try and ascertain if the power train is a: incompatible or as I think b: the power train is incompatible given the prop size / efficiency..

Where did I put my glow fuel....🤔🤪

28/06/2019 19:39:30

I have converted my Derek Woodward Amelia to electric and chose a motor esc combination based on model size and a prop 10x4 9x6 basis it flew ell on with an ST G20-23 glow (did I say I was old). When I ran the combo (Graupner 7738 30A motor with 40A Overlander esc the max throttle reading climbed through 70A. Didn’t realise how fast I could cut the throttle!

The 9x6 prop still exceeded 55A on full power. As a total newby to electric can anyone help please or should I wait for November when none of us maybe flying

Al

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