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Member postings for David Hayward.

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

Thread: Hangar One
23/08/2019 14:52:38

Thank you all for your comments; appreciated as always.

22/08/2019 20:21:03

Does anyone have any experience with Hangar One kits? I am particularly interested in the Curare 64.

Thread: Youtube, Vimeo and Photobucket videos
22/02/2019 17:04:33

Can someone please advise how I post an MP4 video from my PC. Originally taken with my mobile phone. Note this is not a youtube video but one taken with my mobile, now residing on my PC.

Thanks.

Thread: Saito FA40 Performance Increase
04/11/2018 15:55:14

Hi Martin, its a Saito FA40a

04/11/2018 10:21:01
Posted by Jon - Laser Engines on 04/11/2018 10:04:33:
Posted by David Hayward. on 04/11/2018 07:49:36:
Posted by Jon - Laser Engines on 03/11/2018 23:56:05:

how much power is it making now? and on what prop? often a prop change can make a huge difference in 'power'

Hi Jon, well the engine is standard and runs fine so I am assuming standard spec power output and I use APC 11x6 props.

Thanks everyone for your comments. I don't want to go with a larger engine as that would require too much surgery, just want to see if I can get more out of the current engine.

11x6 on a 40 4 stroke should be pretty good. which model is it fitted to and do you know top end rpm?

It's in a Ballerina, have not measured RPM. Are there any phone apps that will do this reliably?

04/11/2018 09:49:17
Posted by Percy Verance on 04/11/2018 08:18:35:

David

I mentioned earlier that perhaps a witch to the Saito .56 would get you where you would like to be? My point being that as far I'm aware, they're the same physical crankcase size, along with the mounting holes, so there shouldn't be any surgery involved.......

Thanks Percy, nice idea but the Saito 50 and 56 are not in production any more and unfortunately they are bigger. In fact the FA40 is sold as an 'oversize' 30; to quote:

  • Similar case size as a .30, but packs more power
04/11/2018 07:49:36
Posted by Jon - Laser Engines on 03/11/2018 23:56:05:

how much power is it making now? and on what prop? often a prop change can make a huge difference in 'power'

Hi Jon, well the engine is standard and runs fine so I am assuming standard spec power output and I use APC 11x6 props.

Thanks everyone for your comments. I don't want to go with a larger engine as that would require too much surgery, just want to see if I can get more out of the current engine.

03/11/2018 22:28:17

Is there anyone out there providing engine tuning? I would like an increase in performance from my Saito FA40 over and above just setting it up correctly. I am aware engine tuning comes at a cost in terms of engine wear etc, but would like to explore this option if it is available.

Thread: SC36 dims
28/10/2018 19:43:30
Posted by TartanMac on 28/10/2018 18:15:23:

21mm on my ASP 36 and my SC 32.

Thank you, much appreciated.

28/10/2018 19:41:04
Posted by Don Fry on 28/10/2018 19:28:51:

Stick a ruler on your motor?

Great idea if I actually had a motor to measure.

Edited By David Hayward. on 28/10/2018 19:42:25

28/10/2018 16:00:24

I'm looking for an accuracy of +/- 2mm

28/10/2018 15:29:31

Any offers?

28/10/2018 11:46:25

Can anyone help? I need to know the dimension between the underside of the exhaust and the top of the engine mount lug for an SC36 as in the picture...sc dims.jpg

Thread: Model flying photos you're proud of
14/10/2018 22:19:07

Clubmate Derek's Skyhawk on final approach...

derek-skyhawk-oct 2018.jpg

Thread: Twin 2 strokes or twin 4 strokes
27/09/2018 15:56:53

Thanks Jon, that's about the right sound for a Mosquito when I eventually get to it.

26/09/2018 15:23:45

Great feedback everyone, this has to be one of the best forums if not the best for good information and advice. My current thinking is to go for 2x 2 strokes for the Grumpy Tiger Cub and 2x 4 strokes for the Mosquito. Where can I hear 2x 4 strokes together?

I hear Jon's suggestion of using the same engine's for both models - did consider this but decided I did not want to 'disable' the Grumpy Tiger Cub.

As for 2x electric, hell will freeze over first.

26/09/2018 11:02:04

I am interested in building a twin i.c engine model and intend to build Peter Miller's Grumpy Tiger Cub as a starting point, then perhaps go on to build a Mosquito at some point in the future.

I would be interested to hear people's views on the various merits and or advantages/disadvantages of using either 2x stroke or 2x 4 stroke engines.

Thread: Chorus Gull
14/08/2018 21:43:47

Hi Martin, this is the image I was referring to from one of your albums....730035.jpg

14/08/2018 19:59:05

Ok, thank you to everyone that contributed and thank you Martin, I can now see after doing a couple of basic drawings how dihedral effectively means the wing tapers top and bottom from root to tip.

Martin, I see you have an image of a Mew Gull in one of your albums, is this actually the Brian Peckham Chorus Gull I am about to build? Do you have any images of the build?

14/08/2018 08:01:10
Posted by Piers Bowlan on 14/08/2018 05:43:27:
Posted by David Hayward. on 13/08/2018 20:15:34:

No David, I don't think it is. I don't have the plan in front of me but just pin the lower spar to your building board and glue your ribs to that, not forgetting to pack up the trailing edge, - progressively increasing spacers to the tip to create the required washout.

Thanks for your response Piers.

So this would mean the wing section tapers only on the top of the wing from root to tip; the bottom of the wing will be flat. My understanding was that the root and tip ribs centres should be aligned as in the image I have posted - then you have even taper of the section top and bottom?

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