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>> Home > Tags > fireboat

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Vintage Aerokits Fire Boat by rolfman2000 Fleet Admiral!   Posted: 2 months ago
It's nice to see vintage Fireboats running anytime. But running with original motors is unusual, and makes this even nicer. Thanks for sharing, as I am halfway through a rebuild of an original Aerokits boat as well. I think mine had a 10cc glow in, but not for long, as its not full of goo like some are. Im putting an equivalent brushless motor in, and hope to have it wet by the end of summer. Best wishes, Dave W 😊

47" Fireboat power question by rolfman2000 Fleet Admiral!   Posted: 3 months ago
Thanks Ron. I always though the I'v times the voltage gave the prop revs. As my G-60 is only a 500kv, then my 4s at 14volts should be sufficient, but a 3s might be a bit short at 11.1v. But I will give the Graupner 50mm hydro a try, which at the least is a place to start from. Once again, thanks for the advice Ron. Happy sailing, Dave W😊

47" Fireboat power question by ronrees Sub-Lieutenant   Posted: 3 months ago
Hi Rolfman, This one is for you.....I wouldn't fit a 6 cell Li-Po to run your 47 inch fireboat!..It would be uncontrollable almost, even if you throttled back. That relates to an output speed in excess of 11,000 rpm at the prop. Safer to try a 5 cell (9,250rpm) or even a 4 cell (7,400) initially. Also see my message to Shaun. I use a G60 in mine with 4 cells which is ample, the extra battery pack in Shauns will double the running time. I only use 1 cell. I use a 50mm two blade Hydro Graupner prop (From Gliders UK), it could handle a bigger one but everything starts to get a bit warm!! Cheers......Ron.

47" Fireboat power question by ronrees Sub-Lieutenant   Posted: 3 months ago
Hi Shaun, This design of hull forces the craft higher and higher the faster it goes. When it is high on the plane and almost hanging on the last few inches of propshaft it can fall off the plane either way, usually to the right (Starboard) side because of engine torque. The full size boats were fitted with 2 or 3 engines to help counteract this. The British Powerboat Company, who originally designed the hull that Vospers copied back in the 1930s/40s also noticed this which led to double skinning the hull with 1 inch thick mahogany for extra strength against pounding and falling on the waves. Lowering the drive angle of the propellor shafts and adding more weight from the C of G back to near the stern. We build this 3 screwed designed hull with one mainshaft usually so do not have the benefit of shaft rotation to stabilise the boat at speed. It was in the 1960's that Fairey engineers had the same problems (Swordsman,Huntsman etc) They came up with large transom mounted powered Trim Tabs. Their boats had similar problems and only one shaft in the main. I suggest you try fitting 2 x 2 inch wide by 1 inch deep trim tabs at the very bottom of your transom midway between the keel and the chine as well as move your battery packs forward a bit initially. Try some fast tests with this, you only need 2 to 4 degrees of down on the tabs initially. Add removeable weights near the CG as needed, a bit at a time but don't stop the bow lifting up onto the plane. Have fun, best of luck. Ron Rees

47" Fireboat power question by Flack Admiral   Posted: 3 months ago
Hi Dave, Definitely in parallel to give the duration. I have just moved home and all my boats are in storage so unfortunately I can't give you the prop size at the moment. Cheers Shaun

47" Fireboat power question by rolfman2000 Fleet Admiral!   Posted: 3 months ago
Thanks Shaun, I intend being careful with it. The boats were originally fitted with 10cc glow engines, so an equivalent electric motor should be ok. But I can always reign it in on the throttle side of the esc curve. Are your 2 LiPo's in series of parallel ? I expect parallel, as series would give 8s which would be crazy. You still didn't say what size prop you were using. Best wishes, and good sailing, Dave W 😊

47" Fireboat power question by Flack Admiral   Posted: 3 months ago
Just a word of caution - I fitted my 47 inch fireboat with a JP Energ I.C. 60 O/R 670 (C50-20) Brushless Motor which is similar to the one you are considering fitting. I use it with a Fusion hawk 120 amp electronic speed controller and it is powered by two 4s LiPo batteries. The performance is exciting to say the least and I find that once it is on the plane it becomes unstable and prone to capsizing. Shaun.

47" Fireboat power question by rolfman2000 Fleet Admiral!   Posted: 3 months ago
I have a 47" classic Fireboat which I would like to use my G-60 500kv electric motor with a 6s Lipo battery and a 120 amp watercooled esc. I wondered if anyone could give me anyone idea of what prop size to start with experimenting to give best power anyone and endurance ? I am told the G-60 is the electric equivalent of a 10cc glow engine, so what size would go on that might be a start. Thanks in anticipation, Dave W 😊

RAF Fireboat (vintage) Aero by CB90 Captain   Posted: 3 months ago
[Score: 9/10] 34"/2500g RAF Fireboat (vintage) Aero Capable of 12mph and a runtime of 40mins Single Propellor (2 Blade X Type 45mm) Direct Drive to a Bullet 30 (2 Blade X Type) Powered by LiPoly (11.1v) 5Amp/h Batteries Controlled Through 24v 15A Electronize (15Amps) ESC - Comments: Ebay job £50 Old Vintage Aero kit 34in Fire boat needing a lot of attention, with delaminating plywood, old glue, old glow-plug engine mounts with electric conversion, and after removing a metal shield I discover an vintage (1970,s Ripmax Bullet 30 Motor the dogs bollocks of electric racing of its time capable of running 24v at 15A. 300W for a brushed motor. Started by revamp rear pit by lowering servo and rudder and building sub deck, storage lockers, tow hook and ladders. Remount the motor with an aluminium mount with custom screw positions. Block windows with 1mm ply. Foam front half of hull to make unsinkable. Make centre decking area. Repair and build up on cabin roofs and walls to centre deck. Rewire add ESC and servo. Remove broken and unusable fittings such as large vents, some missing unable to match again. Problems with old gloss paint crazing the modern spay paints. Build some fittings eg Water cannons, life belts, Build new battery trays, Painting the boat now in progress as of 20/04/2018 Boat has be roughly painted but is not finished, as fittings are now required, added a RC system an gave it a test run. the performance was adequate on 14.4v and great on 17.2v see latter pictures on the pond. the motor did get hot after about half hour of use. the motor is rated at 24v but I think a smaller prop will be required for that voltage. Excellent performance from a brushed motor. Added some stickers and I have now added a 12v fan and ventilation between cabins as the motor required some cooling and was in a sealed compartment.

Perkasa by Lauriem Lieutenant   Posted: 3 months ago
This is a 49" Perkasa built from a ply Precedent kit - the build blog is on this site. Videoed from a 46" Fireboat on a lake in Western Australia. Neither boat is running at top speed, which is spectacular but overscale! Both boats have identical brushless motors. Apologies for the video being a bit long, and for the water on the lens, but this is a first attempt and I hope you enjoy the music.

EeZeBilt Fireboats... by DodgyGeezer Sub-Lieutenant   Posted: 3 months ago
Just found this old thread on a search while I was re-jigging the web pages - thought I'd update the link, which has changed to: http://eezebilt.tk

site surgestions by Fireboat Fleet Admiral!   Posted: 3 months ago
It's a good idea and I can see how this is useful on mobile platforms. I'm currently working on a new website so will take it into consideration. The new site is being built from the ground up to support any device and any screensize. One thing you can do on iPhone and iPads at least, is tap the top status bar where the clock is displayed. This will scroll to the top of the page you're viewing. In the blog section it's also possible to view newest posts first, although this makes less sense for forum threads so they're likely to stay in chronological order. Not at a point to release more details on the new website, but I think you'll all be very pleased with it when it arrives! As Doug says we are a volunteer run website, so sometimes things take a bit more time, but we get there! Thanks for the feedback. Stephen

Aerokits Patrol Torpedo Boat by jarvo Fleet Admiral!   Posted: 4 months ago
Hi Mate, there was an offer on ebay £5 each for 2200mah 3s lipo's, so i took the plunge, bought 8 of the beasts, 2x2 in my Fireboat, with twin 700BB motors, thinking of swapping to brushless but SWIMBO has ideas for the garden!!!! Mark

Ranking System by Fireboat Fleet Admiral!   Posted: 4 months ago
Hi All, see the attached proposal for the new ranking levels and insignia. Logos will become square, so I've tried my best to replicate any official insignia into the bounds of a square logo. Hopefully these will be understandable. In general, the more stripes the higher the rank. Also black backgrounds are higher ranking than blue backgrounds. Let me know what you think. The scoring will remain at 1000, although there will be changes to the worth of posts, likes etc. So at some point later in the year all members will be given a new rank against the new structure. Thanks for the feedback so far. Stephen

Ranking System by RNinMunich Fleet Admiral!   Posted: 4 months ago
Hi All, 1st, 2nd and 3rd Sea Lord is an option but we'd have to invent some insignia. 😉 1st Sea Lord is usually an Admiral of the Fleet, occasionally 'just' an Admiral, as the current one Sir Philip Jones. 2nd, 3rd, 4th and 5th (yep there are so many 😲 all with different departments such as Logistics, Fleet Air Arm etc) are all various 'minor' Admirals with no specific seniority. Poster and Excel file of RN Ranks (& equivalent NATO Codes) and suggested 'Rankings' attached. 20 ranks as in your original list Fireboat. Cheers Doug 😎 (Honorary Comandante of the Ecuadorian Navy!)