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>> Home > Tags > graupner

Classic by Tica Sub-Lieutenant   Posted: 3 days ago
[Score: 9/10] 22"/1000g Classic Single Propellor (3 Blade 30mm) Direct Drive to a Graupner Compact 260Z 1380KV (3 Blade) Powered by LiPoly (7.4v) 2Amp/h Batteries Controlled Through Graupner 18A (10Amps) ESC - Comments: This is a aero-naut Classic and I would say that it's a second revision, as there has been changed several items, compared with the one my wife build 3 years ago. 1: The wind shield is now fixed in slots in the deck and not just glued to the edge of the cockpit opening. 2: There are now padding and leather for the seat included. 3: There are a few etched details for the instrumentation, steering wheel and step plates for the deck. 4: There are notches at the break off parts that will help in fixing the sides when gluing them in place. I used the same set-up as my wife's which is: Graupner BL Compact 260Z 1380KV with a Graupne ESC 18A FWD and REV. The shaft is replaced with a Robbe 4mm (no 1442) as the one provided is a flimsy part that will not withstand the motor set-up. Prop is a 33mm Graupner racing item. It will be running on LiPo 2S but if one need a rocket it can run on 3S. Great fun to build and performs great on the water

850 Brushless by RNinMunich Fleet Admiral!   Posted: 11 days ago
Hi Andy, what you might call a FAQ!! Have a look at the info here to help filter the plethora of motor specs and find something close to the MFA850 performance - or better as the brushless motors are more powerful size for size and LiPo batteries much lighter. As a guide here is a table of the Graupner brushless specs for you to compare with the 850 spec. There is no conversion table as such, especially since with many brushless and ESCs you can alter the performance by adjusting timing at the ESC! Turbo!! Happy hunting, cheers Doug 😎

Ebay Horrors by bilzin Lieutenant   Posted: 13 days ago
I saw an ad on Ebay listing a now discontinued Graupner kit of the Leanne Tön 12 shrimper and thought as it was no longer available I'd give it a try............mistake number one ! WHEN it finally arrived the box (water damaged) contained what the president of our model boat club described as 'a bag of bits' with about 40% of the parts missing and those that weren't were damaged in some way ie water damaged and warped. To cut a long story short, the seller was quite rude when I contacted him/her and refused point blank to refund my payment or accept a return. Furthermore I was accused of not sending true photographs of the contents of the package and denying other potential buyers the opportunity of bidding on this item. Finally, Ebay have considered this case and have ruled that not only is the item not as it was described , but that a refund must be made including the original postage fee. I realise that many unscrupulous sellers are of the mistaken belief that "NO RETURNS ACCEPTED" in their listing means just that, and that any old tat can be auctioned, but unfortunately for this seller that is not the case. I sincerely hope that this person has learnt the lesson that is not wise to attempt to " bullshit a bullshitter!" Lesson over !

Happy Hunter by Dave M Fleet Admiral!   Posted: 18 days ago
NPJ The Happy Hunter was produced and sold by Robbe. They ceased trading some years ago as did Graupner so you may find it difficult to purchase and the additional fittings kits if sold sold separately may no longer be available. I have seen a model built professionally for a local supplier and the kit made a superb model. It is, in my opinion, more suitable for a builder with several models experience. It's good to hear you are so inspired to take on the next challenge but this may be a step too far at present. There is a buid post at Good hunting

Predator (Aeromarine Laminates USA) by BOATSHED Captain   Posted: 28 days ago
Hi can you tell me how your Predator performs on the water with the brushless outboard please. What water surface is best with a tunnel hull like yours and brushless outboard. I have got a Graupner Rhode Island F1 Tunnel Hull with a similar outboard. I have not run her yet as unsure of what water conditions she would like plus too many other things have been going on during this summer. I am hoping to get to run her next spring. But would like some advice on this. I look forward to your help please.

46" Firefloat What Motor/Battery by jarvo Fleet Admiral!   Posted: 28 days ago
HI JJ. Your question about a safety bag, Damaged / overcharged lipo's can catch fire, think of the Boeing scandal that grounded the fleet last year. Charging in a safety bag is advised the bag is fire retardant material, which will contain any problem. Your remarks about the boat not coming onto the plane is down to the weight of the battery, my fireboat started with 7.2v NimH packs 1 for each motor, Graupner 700bb's, good cruise but not quick, but short run time, 10mins. I have re-wired to allow 3s lipo's, but not had chance to test it yet, but should go like stink. With a fast hull, weight is important, 4 x lipo packs, 1kg, half the weight and possibly 6 times the power delivery. In your first post you mention 600 motors on 6volts, they are probably rated at 8.4volts, same as my 700's hence the lack of performance, also the battery, at 12ah it should last about 30mins, was it fully charged??? and is it showing at least 6volts, ie not got a duff cell??? Canabus, in his post described an ideal set up with brushless motors, 1600 watts is just over 2 hp, 750 per horsepower so you can see the difference in performance with different motors and battery set up's

46" Firefloat What Motor/Battery by moormedic Seaman   Posted: 29 days ago
Hello chaps. I'm very new to this but have just finished scratch building a 46" Vosper Firefloat in the old Aerokits fashion (ie all wood) to the point where I've primered it, fitted a radio and couple of motors (Graupner 600 chosen at random cos they looked adequate!) and a Lead Acid 6v 12Ahr battery. Tried it on the local canal today and two problems. 1: its underpowered...nearly gets on the plane with a fresh battery but not quite. 2: The battery only lasts about five minutes. I'm an old git and don't understand "Lipids" or the benefits of "Brushless Motors" etc and would appreciate any help or advice any of you experienced guys could offer me please on motor/battery choices to get the thing planing and running for more than five minutes. Many thanks in anticipation Cheers John

Voltage step down by jarvo Fleet Admiral!   Posted: 30 days ago
Hi Brian, I would suggest 2 x 6volt NimH cell packs with a parallel 'Y' lead, the reason is you can use each pack to alter the trim of the hull. with a big hull like the Fire Boat, you could even put 4 x 6v cells in for longer duration. a single 12v does not give you a lot of maneuvering room regards balance etc. I have just changed my 48" Fireboat to 3s lipo's from 7.2v NimH packs, this is with Graupner 700bb motors with twin 50mm 3 blade brass props, not tested yet due to poor weather and shift patterns, but it sounds great on the bench. Mark

Graupner Optimist by Berty Seaman   Posted: 1 month ago
[Score: 8/10] Powered by NiCad (4.8v) Batteries - Comments: Just acquired a Graupner Optimist ..,Have not made a yacht since Marblehead racing days so looking forward to an interesting build. Came with full accessory kit , plans and all wood in good condition even though it's 40 ? Years old

Albion by Baggie Captain   Posted: 1 month ago
The figures I have are not by LEGO. I searched on the internet. I think they are Graupner ( or something similar). The dog, barrel and logs I got from a local model shop - Hobbies at Revingham. Enjoy searching!

Motor problem by pmdevlin Fleet Admiral!   Posted: 1 month ago
for the purpose of testing, don't go out and buy expensive props, just buy cheap plastic two blade ones, I always use "x" blade, they are a coarser pitch, "s" blade are less pitch. Get a few to test, 35mm, 40mm, 50mm. Fit, short run, see how hot things are. Whilst you don't want to go fast, don't forget this is a big heavy old girl, its better to be overpowered than under powered. If it was me, I would get a graupner 700, watercool with a cooling coil, probably settle with 45 to 50mm two blade "x" prop, run on 12v, this will give some speed and durability. Don't assume that just because the model shop suggested it, its the holy grail, many many times we have seen evidence of very poor advice given by so called experts😡

Motor problem by reilly4 Lieutenant   Posted: 1 month ago
Hi Richard, If each blade is 30mm from the shaft centre, it is a 60mm diameter propeller and is far too big for that size motor. For performance you need a larger motor say a Graupner 700 and I would still recommend a smaller propeller.

Aero kits Sea Queen by Rex3644 Sub-Lieutenant   Posted: 2 months ago
[Score: 8/10] 46" Aero kits Sea Queen Single Propellor (2 Blade X Type 45mm) Direct Drive to a 3650 watercooled (2 Blade X Type) Powered by Lead Acid (12v) 7Amp/h Batteries Controlled Through Hobby wing 100 amp w/c (100Amps) ESC - Comments: I felt the need to build something large from scratch having built Sea Nymph Sea Rover aero kits Swordsman kit. Many GRP based I/C powered before converting many of them to Brushless power. In Feb 2017 I bought plans from ebay in readiness for a family trip to Wales. My brother in law has a well kitted workshop in which he produced Sailing dingy kits before retiring. The aim was to produce this boat for the least possible cost. Thankfully there are lots of ply off cuts in Wales plus an 8x5 sheet of 1.5mm so I set about making my own kit during the time I was there. The motor was to be a Marx Decaperm selected from my bits box which I chose to set up using the geared drive. On the first launch performance was lacking to say the least so the motor mount was adjusted to direct drive but alas performance was not much better then everything stopped. The wires on the commutator had become unsolder end a common problem apparently I've now fitted a 3650 brushless stolen from an early attempt of a Huntsman 31 built for my Grand daughter which had replaced the Graupner 600, she is now 19 and interested in other things beginning with B. Having fitted the brushless a lot of vibration was experienced his was traced to a misaligned coupling,next outing will be with a huco type of fitting just to check it out roll on Thursday.

NorStar Kingfisher by Dave M Fleet Admiral!   Posted: 2 months ago
The Graupner 600 motor can run hot especially under load so I would suggest something like a brass 35mm 3 blade prop would be a good starting point. If you have or can borrow a Wattmeter this would help measure the current whilst holding the model in the water. There are different variants of the motor so you need to Google your actual motor details to get the correct specs. If you have a selection of props then you could just try different ones on short runs to see the performance and check the temperature. I do believe you corresponded with Robert on this site regarding his NoStar set up, perhaps he could advise which prop size he used.

NorStar Kingfisher by Grandpa Captain   Posted: 2 months ago
I installed a Graupner brushed 600 motor in my boat but am not sure the best size of prop to match up with it. How do I make a wise choice?