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Only 2nd run of "IMARA Tug", my lad did the shaky video. (O well) Nice model lots of ballast, batteries, MARX Hectoperm motor for huge power reserve. Running on electric but Cheddar Proteus steam plant also fits in instead with ABC boiler control. plan for the future to try this never run not even on air yet!
great job on the model.Runs nice too.Nice to see lots of lights.Will look great at night.BTW anybody check to see if the Canada geese had their passports.
Modav Huntsman 31 - Posted: 6 months ago by Will-I-Am
mdlbt.com/45519
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Built originally in 1973 from a modav kit and powered by an Enya 35bbiii. Now running a 3548 brushless motor and 5800 3 cell lipo. Model in video was running an x35 prop with +/- 20 degrees of rudder, very sensitive on turns. Today's run was on x40 prop considerably faster with reduced rudder throw of +/- 15 degrees. Current draw was 30 amps max watts 376. Still too sensitive on turns.
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.
Looks the same as the one in my Sea Scout William. For size idea; the prop is 35mm. And it works beautifully, see trial vid. https://youtu.be/zPgYicA0yGw Cheers, Doug 😎
Hi William, S, X35 !? No idea😲 I assume they are terms from the racing world which I have no particular interest in. My intention wasn't to make her into an offshore racer. As it is she's well over scale speed, but fun to run, and that's what counts ain' it? 😉 Gives a good long run time, 1 hour plus, using a Propdrive 2830 BL and a 3S 4Ah battery. All up weight 1974gm. LoA 24", beam 8.5". My prop is simply a 35mm ca 14 pitch from Raboesch. Actually wanted the one with a blunter hub but they weren't available when I wanted it. The pointed hub variant is actually more like as fitted to larger naval units in WW2. Sorry🤔 Cheers, Doug 😎
Doug, Thanks for the reply, as far as I was aware the S type plastic props were less pitch than the X type plastic props. If your 35 mm metal prop is 1.4 pitch then it is similar to the X35 plastic prop I used in the first video. I think I need to investigate diameters and pitch a little more. Last week running my Huntsman I had an X40 plastic prop on and it was too large and way too fast, a friend running a 34 inch fire launch runs an X 35 so I may go back to look at a 😎35 mm dia metal prop and look at the pitch. Regards Ian
Aha! Now I've learned something too👍 Thanks William Actually I've been busily changing all my 'frayed' 😲 plastic props for cast brass ones. Cheers, Doug
Tug Brooklyn Tub Test! - Posted: 6 months ago by figtree7nts
mdlbt.com/45449
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Just a 2 minute tub test. While adding her ballast! She's a beast! She must weigh in at 9 or 10 pounds!😲
Eat more spinach Ed😁 I know, I know - I hate it as well😉 Would be glad to help but - wrong side of the pond 😭 Build a trailer for her and I'll send you an RC Beach Buggy to pull it! Happy pond trials, cheers, Doug 😎
Thanks Ron. I have tried to be most particular with scale speed and waterline. I used 1.2kg of ballast carefully laid out whilst hull was floating in the bath. Once in place I secured it with expanding foam.
yes, and the more there is the more to go frustratingly wrong !! i keep promising myself to keep things simple but being an inventive sort of chap things inevitably get more complicated. My original Explorer steam boats were the best.....simple boiler and oscillating steam engine. Ah.. lovely.
yes Doug, and when the computer and printer wont do what you want and your tax return or companies house documents are due urgently but refuse to go through and you tear your hair out and swear violently , you wish life was much simpler ! I thought these machines were supposed to help us. When i was a trainee engineer they told us that in the future we would all have so much leisure time because machines would be doing all the work !!! Got that wrong didnt they !!!
You're dead right there Leslie, First we have to get the damn things to DO the work, and do it RIGHT!
The department printer would always go kaputt on Friday evening when I wanted to print a 130 page system description and the courier was stamping up and down outside 😡 "Brave New World" !! Cheers, Doug 😎
Envy Jane belongs to my granddaughter Evy Jane. It is sailed regularly at the Surrey park Dive, which is an old quarry in the city of Box Hill in Victoria Australia. We have a great facility and club house with approximately 130 members, we welcome new members and visitors and meet Sundays and Wednesdays.
We should live so long Ed 😉 I may have the machines necessary to make a steam engine, but I sure don't have the expertise necessary🤔, like Hammer 👍 for instance does have! Anyone out there making mini marine diesels???? Cheers, Doug 😎
yes, my mate has added a lot of weight on top compared with the original so consequently has ended up a bit lower in the water. Bob was firing up his Explorer next to me and couldn't get the radio to work as he had plugged the servo into the wrong slot!!
U-181 is a Type IX D2 U boat of the German Kriegsmarine. It is one of the largest U-boats. It is a heavily modified Engel kit. 1/45 scale. It took about 1 1/2 years to build.
Excellent job Reilly 👍 Great video and music 👍 I see you decided after all to drown the crew😁 I decided the same for my U26! Not painted or fixed yet 🤔
Looks like you have a very similar dive system as my Akula II from Engel, or do you have two tanks? Main and trim or fore and aft? I also used perspex (5mm) for the access hatch on U26, with a silicone rubber gasket. Same basic construction, with detachable deck / upper hull, due to the hull design in those days; pressure hull and outer flooded hull. The Akula is a slightly different kettle of fish. Being a more modern nuclear sub round design all the innards are mounted in a tube and sealed in with a bayonet fixed bulkhead in the bow. No scope for external decoration like the WW2 boats. Cheers, Doug 😎
There are 2 ballast tanks 750ml each - allowing nearly 1.5kg of ballast. I have only fixed half the crew to the boat, and only some key ones in the conning tower. You cannot see them when at a distance and certainly not underwater, so a calculated view. They do stand out on the photos so it looks more realistic. I think the newer tube internals allow for smaller subs but there is hardly any space left within this model.
Hi Haig, you're right 👍 My Akula II is only half the size of your boat at about 35" x 4 1/2" beam. So only one 750ml ballast tank. Trimming could be tricky! Although I also bought the Engel Pitch Control module. The tube is going to be pretty well packed but sliding it out will make servicing and adjustment easier (I hope😁) With the Akula's typical USSR enclosed bridge there's not much scope for crew. Could put one lookout with his head stuck out of the top hatch I suppose. Hmm! Where to get 1/125 people? As for the 1/72 U26 crew; I've got a deck gun crew set, a CO and tower lookouts & Flak gunner set, and of course I can't resist the guy peeing overboard - must remember to keep him on the lee side 😲 Happy diving👍 Cheers, Doug 😎 BTW: I believe there is a mod kit for working periscopes, must look into that. Would add a little more interest.
My crew were made by Shapeways. Somewhat expensive, but I needed an unusual scale. I asked a question and the designer got back to me. I was able to select from a few different groups and he also did a few pose mods. The crew is available as U-181. I think they can be scaled down to any scale, although the Revell U-boat crew are also available and a lot cheaper. Some of them now sail on my 1/72 Z39 destroyer. So far I have put 9 crew members onto the U-boat and I have 3 remaining. They are for the front 105mm gun. My periscope has a very simple working method. A balsawood cylinder at the bottom of the periscope. Sub dives and the periscope comes up. Sub surfaces and the periscope goes down.
Great minds think alike Haig👍 I've been wanting to have a go at Z38 for a long time. Those 1936 / Narvic classes had nice lines. Sea keeping wasn't so hot in the originals apparently! Like the 'scope idea, will try it on my U26. Saves having to break into the pressure hull👍 Which was always my biggest problem on COMMS system designs for 'toys' for the 'big boys'; minimising the hull breakthroughs! With such a simple float how do you make it so 'free running' that it doesn't bind? Cheers, Doug 😎
Hi Doug, I have used the floating periscope on my other submarine too. On that one there are two sets of two. If the periscope tubes slide easily and the float is big enough then it will work. I have used aluminium tubes on the HMS Triumph. The U boat scopes are both aluminium. They are loose so I can put one or both in before sailing. The floats are balsa wood and painted for sealing.
