SG&K Gentlemans Runabout Mk2

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SG&K Gentlemans Runabout Mk2

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20 June 2017 at 10:12 #71467
harry smith 1
Participant
@harrysmith1
Hi All

I have start my redesign by increasing the size to 860mm, increasing the engine hatch size(the deck planking will hide this), but, the hatch will still look scale size.

I am moving the brushless 3639-1100kv motor and ESC to under the dash.

The dash area from the windscreen will be held down by four 10mm magnets.

The driver and passenger will feel the power of motor!!!!

This is my first go at a double cross planking boat!!!

Can-a-bus
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20 June 2017 at 10:12 #7099
harry smith 1
Participant
@harrysmith1
Designed for better access and reposition motor
21 June 2017 at 08:10 #71487
harry smith 1
Participant
@harrysmith1
Hi All

Installed driveline and motor mount using my designed engine mount disc which grub screws onto the prop drive.

Harry
24 June 2017 at 07:23 #71550
harry smith 1
Participant
@harrysmith1
Hi All

Cut out for the engine hatch and started on the making the hatch, also started cutting into frame 3 for where I am installing the motor and ESC.

All the wires will go under the flooring.

I have made the flooring in two pieces before skinning the sides.

I did this on the Sea Hornet and made life a bit easier!!!

Harry
26 June 2017 at 08:13 #71594
harry smith 1
Participant
@harrysmith1
Hi All
Only installed the battery floor and mounted the servo today.

Harry

Edited By harry smith 1 on 26/06/2017 08:18:18
27 June 2017 at 11:55 #71609
Ray Wood 3
Participant
@raywood3
Hi Harry

I think you method of sorting out the internal installation before the skins go on is a great approach and makes good sense, keep up the good work it should be a flyer

Regards Ray
27 June 2017 at 12:52 #71610
harry smith 1
Participant
@harrysmith1
Hi Ray

Working on an idea for the rudder setup as it will be fully covered in with no access!!!!

Also I totally dislike the original rudder which looks like crap.

Harry
27 June 2017 at 13:57 #71611
Ray Wood 3
Participant
@raywood3
Hi Harry

Maybe a closed loop system with cables, but if its built-in you can't adjust the throws at the rudder end, stainless fishing trace wire with brass tube crimps works well on aircraft.

Regards Ray
27 June 2017 at 14:08 #71613
harry smith 1
Participant
@harrysmith1
Hi Ray

I can change the throws at the servo end and also on the Turnigy IA6 radio.

Also can setup the throttle channel in two switchable modes, one for scale and one for full throttle.

Also have speed, voltage and motor temperature sensors to read back to the transmitter.

Harry
27 June 2017 at 16:44 #71615
ashley needham
Participant
@ashleyneedham69188
I like using those nylon/plastic rudder tillers, and replacing the standard nut and bolt with a 3mm bolt and nyloc. It enables the shaft to be a good fit on the (5mm) shaft, but not so tight that you cannot fit them blind…as long as you can get a hold of it somehow. Makes rudder adjustment so much easier as well.

Keep up the good work, Harry lad.

Ashley
28 June 2017 at 01:07 #71618
harry smith 1
Participant
@harrysmith1
Hi Ashley

I am going brass with an oiler tube built in!!!

Double pushrods, double grub screws and double lock nuts.

Harry
30 June 2017 at 07:45 #71651
harry smith 1
Participant
@harrysmith1
Hi All

A few more pics.
30 June 2017 at 09:13 #71653
ashley needham
Participant
@ashleyneedham69188
Harry lad, that's you on the left and no mistake! Ashley
30 June 2017 at 09:48 #71656
harry smith 1
Participant
@harrysmith1
Ashley me lad, so right and with the gloves on for winter!!!!!
30 June 2017 at 18:24 #71663
ashley needham
Participant
@ashleyneedham69188
It conjures an image I am trying to forget…. Ashley
4 July 2017 at 09:45 #71718
harry smith 1
Participant
@harrysmith1
Hi Ashley

Beauty is a curse and I am afraid I have got it !!!

Installed to 3639-1100kv 800 Chinese watt motor and made the ESC floor.

Harry
4 July 2017 at 16:17 #71723
ashley needham
Participant
@ashleyneedham69188
Harry. You are certainly cursed!!

What about ESC cooling? is there some sort of airflow arrangement?

Ashley
5 July 2017 at 05:48 #71733
harry smith 1
Participant
@harrysmith1
Hi Ashley

Thank you Ashley!!!

The ESC and motor will get all the air from the open cockpit.

Both the ESC and motor do not run hot as we have found in our other boats including the cabin cruisers.

Harry
7 July 2017 at 11:54 #71750
harry smith 1
Participant
@harrysmith1
Hi All

I added extra stringer to the boat and started double planking the sides.

This is my first go at this type of planking, so one more off the bucket list.

I am using 10mm square magnets(one each side, brother they hold the planks together) with the second layer.

I started in the cockpit area because it was the weakest place and easier area to work.

Harry
11 July 2017 at 11:43 #71798
harry smith 1
Participant
@harrysmith1
Hi All

Still planking, post a few more pics soon!!!

Harry
11 July 2017 at 15:24 #71803
ashley needham
Participant
@ashleyneedham69188
Harry. Like the magnets. You can get some jolly strong ones now, ideal for this job. Ashley
12 July 2017 at 08:18 #71810
harry smith 1
Participant
@harrysmith1
Hi Ashley

The magnets are cheap 10mm square ones from Hobbyking.

Planking is going well, so far !!!

Harry
14 July 2017 at 12:50 #71839
harry smith 1
Participant
@harrysmith1
Hi All

I have workout the rudder setup and this is going to have an oiler, double grub screws and nuts and double pushrods.

Harry
15 July 2017 at 09:06 #71851
harry smith 1
Participant
@harrysmith1
Hi Chaps

I received my custom rudder today, the original design one did not look right for the stern of the boat with all the curves.

As I will have no access to the rudder I had to have a bit of a brain storm and a few pints helps.

Bingo this is it !!!

Double operating tiller arm, double pushrods with double nuts(screw lock screw of course) and double grub screws to the shaft .

As I will be using the boat in salt water I added a oiler to the shaft.

The oiler is connected via silicone fuel tube to the flag post on the stern !!!!

Well all American boats have dam big flags on the stern !!!

Harry
15 July 2017 at 14:56 #71858
Paul T
Participant
@pault84577
Well all American boats have dam big flags on the stern !!!

Hello Harry

This is because the Americans are slightly insecure and often need to use a flag as a comfort blanket to make them feel important.

The English don't really go in for such brash exhibitionism preferring to rely upon quality in the steadfast knowledge that the English are always right and, as such always superior to our colonial cousins.

I wouldn't consider your flag to be overlarge as its size is within keeping with the overall scale of your boat, in point of fact one could say that it is practically perfect in every way.

Paul
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