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>> Home > Members > CB90
Registered
9th Mar 2018
Last Online
30th Sep 2018
CB90

Member Stats
Stats
Member No. 4861
Registered 9th Mar 2018
Last Online 30th Sep 2018
City Cumbria CA17 4EG
Country United Kingdom
Boats in Harbour 11
Sailing Locations 1
Forum Posts 29
Photos Posted 466
Likes Received 181
Likes Given 5
108 Total Posts
Sailing Locations
Darlington and District
Since: 10th Mar 2018
Harbour
HMS Sabre, Scimitar-class preceded by Archer-Class
Type: Naval Ship
RAF ASR 1942
Type: Naval Ship
RAF Fireboat (vintage) Aero
Type: Fire Boat
Jet Boat
Type: Pleasure Craft
+7 More
Fleet Admiral!
Ranks Points
Fleet Admiral 1000
Admiral 800
Captain 600
Commander 400
Lieutenant 200
Sub-Lieutenant 100
Chief Petty Officer 50
Petty Officer 25
Seaman 10
Apprentice 2
Recruit 0
Top Ranking Member!
Points
Activity Worth Awarded
Boats in Harbour 8 88
Forum Thread 5 35
Forum Post 2 58
Event 8 0
Photo Gallery 10 60
Photos Response 3 9
Video Post 15 45
Video Response 3 3
Build Blog 20 180
Blog Post 5 210
Blog Response 3 33
Sailor 8 8
Guestbook Post 8 0
Liked Posts 1 5
Received Likes 2 362
1096 Total Points
United Kingdom
Recent Posts
W1 by CB90 Fleet Admiral!   Posted: 20 days ago
A very neat boat, planking the hull must have taken some time.

20th Scale ELCO 80ft PT boat part 11 by CB90 Fleet Admiral!   Posted: 20 days ago
In the words of Delboy, 'What a Planker, Rodney!' Added more sheets ply in diminishing sizes. now down to 1cm planks for the bow. Found I'm allergic to superglue fumes.

Change motor by CB90 Fleet Admiral!   Posted: 20 days ago
Changed motor to a lighter out-runner with same shaft dimensions. Specification: Kv: 3700KV Max current: 32Amps Max Power: 330watts Idle current: 3.6Amps Resistance: 0.0185Ω Shaft: 3.175mm Weight: 75g Suggested ESC: 40A Cell count: 2-4s Lipoly (Voltage) Bolt holes spacing: 16mm Bolt thread: M2.5/M3

20th Scale ELCO 80ft PT boat part 10 by CB90 Fleet Admiral!   Posted: 20 days ago
Quick picture of Motor Fans installed. (Black plastic is to protect motors from the glue.)

20th Scale ELCO 80ft PT boat part 9 by CB90 Fleet Admiral!   Posted: 20 days ago
Hi thanks for your input The pictures do not show the mini fans now attached to each motor which were robbed from PC cooling fans. The boat is not a performance craft I will hopefully only pull 20 to 30A from each of the low kv motors. Spec. 2808 1400KV 14 Poles Brushless Motor Max Watt: 350W Voltage range: 7-15V Max amps: 35A No load: 1.2A

20th Scale ELCO 80ft PT boat part 10 by CB90 Fleet Admiral!   Posted: 20 days ago
This Boat is a bit experimental the main goals where for it to be light in weight, and also a more correct hull shape, also to keep cost to a minimum and as scale as practically possible. To answer the question about not using one single skin, is that ply will not bend in two directions, the sides of the hull have curves to them, the length of the hull is also curved, especially the bow but also curves to a narrower stern/ transom. The best way to skin the boat is by 60 degree planking in two alternating layers but this would make the hull too heavy for me to transport, due to back problems.

20th Scale ELCO 80ft PT boat part 10 by CB90 Fleet Admiral!   Posted: 27 days ago
Putting on the bottom skin of 0.8mm birch ply, in ever diminishing lengths. I changed my glue from PVA (502) to Gorilla glue.

Old Sails and Rigging by CB90 Fleet Admiral!   Posted: 27 days ago
Some pictures of the original sails and rigging, to my surprise the carbon fibre mast was in two sections, there is no mention of this in any manual or information regarding this boat. It could be a replacement (Perhaps a fishing rod!).

Undercoat by CB90 Fleet Admiral!   Posted: 1 month ago
Undercoated first with grey primer then with white. the top coat colours have not arrived yet. Added a drain plug just in case.

Clean up and sand down by CB90 Fleet Admiral!   Posted: 1 month ago
Ok start by removing all I can from the hull, rudder, mast, stickers, stays. etc a) Sand down the hull and wash with white spirit. b) Fill scratches and re-sand. c) Reinforce mast position surrounding area.

Restore An American Nirvana Yacht by CB90 Fleet Admiral!   Posted: 1 month ago
I have by luck, not judgement acquired a second hand 'Nirvana' Yacht, it is a sloop rigged craft that was only sold in America and retailed between $250 and $350 according to the revision version and the year brought. This was a bit of a surprise to me as I only paid £10 for it. The Nirvana RC Sailboat was first produced by Megatech in 2002. and is 32in long and the hull& deck are ABS plastic. The quality of the boat is unmatched in the price range, with such features as a lead keel ballast, superior polyester sails that won't mildew, stretch or tear, and fittings that make the boat a dream to sail. The mast and booms are made of carbon reinforced composite that is light and very strong. The Boat hull is in sound condition just a few scratches, there is a hairline crack in the mast area, no radio gear at all. and sails are usable but really need replacing.

20th Scale ELCO 80ft PT boat part 9 by CB90 Fleet Admiral!   Posted: 1 month ago
Installed the three out-runner motors, I hope I never have to replace them. They have rubber mounting washers and nylock nuts and spring washers in M3. They are about half inch apart took a few hours to install with full access as currently boat has not been skinned. I hope to add small fans to the prop hubs to keep them cool Now have received the rudders and water scoops. they will be installed after the bottom skins are on.

Modav Huntsman 31 by CB90 Fleet Admiral!   Posted: 2 months ago
Very nice boat I am in the process of restoring one myself. Could you reduce the size of the rudder, may increase straight line speed, and calm the turns.

Chinese props by CB90 Fleet Admiral!   Posted: 2 months ago
After all this chit chat I bet 'Westquay' will say by the way the propeller was made of stainless steel. Cheers Roy.

Re CB90's Scimitar (Archer-Class) by CB90 Fleet Admiral!   Posted: 2 months ago
The RN would not be seen dead with sharks teeth on their craft.

Chinese props by CB90 Fleet Admiral!   Posted: 2 months ago
https://www.rcgroups.com/forums/showthread.php?2454547-Metal... "Downside to metal props is the fact they need to be balanced and sharpened, which is a lot of work and not without health issues due to the beryllium used in some brass alloys. Berillium is highly toxic, read up on the stuff and take the appropriate measures." and https://www.rcgroups.com/forums/showthread.php?1267378-Dange... I know you cannot trust all you read on the internet, but better safe than sorry!

Re CB90's Scimitar (Archer-Class) by CB90 Fleet Admiral!   Posted: 2 months ago
Funny how this web site completely destroys any form of formatting (layout) you put in. Any tips on formatting. see picture of grab, and of original format. Thanks Roy

Chinese props by CB90 Fleet Admiral!   Posted: 2 months ago
Hi Please be careful with copper/brass alloy propellers as they often contain beryllium which is is highly toxic, read about the dangers and take the appropriate safety precautions. Before you work on these propellers, such as balancing, sanding, polishing or repairing.

tugboat keel by CB90 Fleet Admiral!   Posted: 2 months ago
http://voith.com/corp-en/drives-transmissions/voith-schneide... Try the above link for the drive system there is some software available to simulate it operation.

tugboat keel by CB90 Fleet Admiral!   Posted: 2 months ago
DIESEL TUG TIRRICK Plans by Sarik Hobbies, Schneider powered tug1:50th scale. Model is 740mm loa & 230mm beam and intended for power by model VS units. Unusual hull form but no model construction data. Featured in: MM NOVEMBER 1994 https://www.sarikhobbies.com/product/diesel-tug-tirrick/

HMS Sabre, Scimitar-class preceded by Archer-Class by CB90 Fleet Admiral!   Posted: 2 months ago
[Score: 5/10] 26"/1400g HMS Sabre, Scimitar-class preceded by Archer-Class Capable of 12mph and a runtime of 15mins Single Propellor (3 Blade 35mm) Direct Drive Powered by LiPoly (7.4v) 3Amp/h Batteries Controlled Through China 60A (30Amps) ESC - Comments: Just finish this little boat, need to have its first trial on the water to measure current draw and perhaps modify the prop size. Make sure water cooling works, and the thing steers ok, as rudder is off set. and may have to be move into the prop wash. The Motor 3650 4Poles 3060KV Brushless RC Motor for 1/10 RC Car Boat 1. 4Poles design, high torque and high efficiency. The overall efficiency exceed 90 percent. 2. Low heat production, long lifetime, strong overload protection and it can function 95% of its features without any heat sink appliance. 3. High quality materials adopted: high intense aluminum alloy anodizing shell , front and back cover , high-performance temperature-resistant magnetic steel and imported high-speed bearing. Specifications: Model: XTI-3650/4.5D Dimension: 50 * 36mm KV(RPM/V): 3060KV Poles: 4 Max Power: 1300W Max Voltage: 19V Max Amps: 68A Shaft Diameter: 3.2mm Shaft Length: 15mm Connector: 5.0mm Banana Connector. The real boat Builders: Halmatic Operators:  Royal Navy Preceded by: Archer class In commission: 2003 – Active: 2 General characteristics Type: Patrol boat Displacement: 24 tonnes (24 long tons) Length: 16 m (52 ft 6 in) Beam: 3.1 m (10 ft 2 in) Draught: 1.2 m (3 ft 11 in) Propulsion: 2 × MAN 2480LXE diesels, 2 shafts Speed: 32 knots (37 mph; 59 km/h) Range: 260 nm (480 km) at 19 kn (35 km/h) Complement: 5 (1 officer, 4 ratings) Sensors and processing systems: Racal-Decca Bridge-master 360, I band navigation radar Armament: 2 × General purpose machine guns (stern-mounted)

Fairey Hunsman renovation part 4 by CB90 Fleet Admiral!   Posted: 2 months ago
Pictures Rubbing down hull, Close ups of hull repairs Drill holes in transom for the exhaust pipes (water cooling outlets). Added spray rail to side of hull. Have found that I am having bad reactions to the fumes from Gorilla Glue.

Fairey Hunsman renovation part 3 by CB90 Fleet Admiral!   Posted: 2 months ago
Thanks to ChrisF I am able to rebuild the boat with a different superstructure, but using the Huntsman 31 hull, he informed me of a Sport version of the 31 that had similar cabin as the 28. With some investigation. The New boat will now be '2017 Huntsman 31 Cockpit', this is a modern remake of the original design by a new setup. https://www.faireymarine.com/new-boat-showrooms/huntsman/201... Fairey 2017 Huntsman 31 cockpit, 2 berth classic sports cruiser Length: 31’3” Beam: 9’6” Draft: 2’10” Displacement: 4.5 Tons

Fairey Hunsman renovation part 2 by CB90 Fleet Admiral!   Posted: 2 months ago
The boat was free but I gave a small donation to the club,(Darlington & District Model Boat Club). Started by removing all hardware, motor mounts, prop shaft, rudder, water-scoops and outlets. Next fill the holes I have made, remove some excess wood. roughly sand down hull. Foam bow area, and glue crack in deck. Find a lot of damage to the fibreglass hull, large chips out of the gel coat and associated stress fractures, and other spider web cracks. Drimmel all crack lines and open up chips and dents, then fill with a filler. an experimental mix of P38 and Araldite, hope it works. Start planning drive options I have a number of items that I have brought and not used that will be put in this boat, otherwise they may never find a home. last picture shows drive option to use up components.

Fairly Hunsman renovation part 1 by CB90 Fleet Admiral!   Posted: 2 months ago
Fairey Huntsman 31 aft cockpit 2 berth classic sports cruiser it will be then, sorry about the spelling will correct if possible. Length: 31’3” Beam: 9’6” Draft: 2’10” Displacement: 4.5 Tons

Model hovercraft plans by CB90 Fleet Admiral!   Posted: 2 months ago
Hi Mzee, Have a look at these sites:- http://www.astounding.org.uk/ian/hovercraft/index.html or http://www.aeroglisseur.com/Plans_e.htm#Plans

Graupner Jumbo 540 motors by CB90 Fleet Admiral!   Posted: 2 months ago
Sorry but when you said 6v I assumed it was a SLA so your NiMh, must be a 5 cell as they come in multiples of 1.2v. So I agree the simplest solution is a Rx battery pack and disconnect the BEC supply. (May need to remove +ve wire from ESC(s) plug?)

20th Scale ELCO 80ft PT boat part 7 by CB90 Fleet Admiral!   Posted: 2 months ago
Hi RNinMunich, Should not be too bad as will cut ply slit/profile from tubes to the transom then reinforce inside under rudder compartment. rest of the tubes length are already supported. I really wanted to make sure the motors and shafts were in excellent alinement, and being able to see through the hull is a good advantage. (note. do not have facilities to make alignment tools). In previous models I have left it towards the end of the build to fix motors couplings and have found alinement to be a bit difficult, especially on smaller boats.

ELCO 80ft PT boat Jumping the gun by CB90 Fleet Admiral!   Posted: 2 months ago
Sorry about delay in reply, Yes I did buy them from Amazon : big Un =£17.17 Little Un £11.82 https://www.amazon.co.uk/gp/product/B075XCSNDS/ref=oh_aui_de... https://www.amazon.co.uk/gp/product/B075XJ1MRL/ref=oh_aui_de... Paste above into browser Next purchase shown in picture brought three of them a bit OTT

Graupner Jumbo 540 motors by CB90 Fleet Admiral!   Posted: 2 months ago
I think it would be worth the risk of running the DC Motors at 7.2v (NiMh) or second choise 7.4v (Lipo) and get rid of the 6v lead acid battery. The chance of damaging the motor is limited, the battery packs will be lighter than an equivalent lead acid, but will need to by a charger as well. Always put a fuse in line rated 5 amps below that of the ESC. Or buy two higher voltage motor? only £6.99 each plus P&P link copy and paste into browser address:- https://howesmodels.co.uk/product/graupner-speed-600-8-4v-mo...