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Graupner B28
Good morning everyone
I found a Graupner B 28 model as per the attached photo but without the engine. I thought of using the engine of which I also attach photos that I have at home and used in model airplanes. I ask if from your experience this engine could be good for the B 28 model. I am not looking for the super speeds typical of these models but a speed sufficient to have fun. I'm not an expert in boat models, so I'm asking. The engine should be a 550 at 12V. If I can use this engine, how can I find an engine support to fix internally to the model? What type of support to use? Thanks all of you
fulmic
2 months ago
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๐ Graupner B 28 Speed Boat
2 months ago by
๐ฎ๐น fulmic (
Petty Officer 2nd Class)
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Good morning everyone
I found a Graupner B 28 model as per the pictures attached but without the engine. I thought of using one spare engine of which I also attach photo. I have such motor at home and was used in a model airplane. I ask if from your experience this motor could be good and utilized for the B 28 model. I am not looking for the fast speeds, typical for these models but a speed sufficient just to have fun and of course more than a Krabbe model that i have already. According to my previous mail you can undrstand theat I'm not an expert in boat models and for this reason I'm asking to all of you before to make mistakes. The engine should be a RS 550SW T9 at 12V but my idea is use it at 7,4 Volts with LIPO 2S. My idea if is possible is to avoid to buy a new motor but use this one or a Graupner Speed 500 Race. What is better? In my opinion the RS 550SW motor is better also because the boat data are the following:
Length approx. 950 mm (Around 37 1/2")
Overall length approx. 1050 mm (Around 42")
Width approx. 330 mm (Around 13")
Total weight with RC components approx. 3.2 kg
If i will instal the motor RS 550SW which kind of engine support i need to utilize to fix it inside the model? just a flange infront? or a dobble support (front flange and back side motor support)?
Last matter to develop is the size of ESC, For sure will be an ESC for brushed motor but how many Amperes need to be the ESC? thanks and sorry for all my questions but other way i can not start my new project. Thanks Fulvio
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๐ Graupner B28
2 months ago by
๐ฎ๐น fulmic (
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๐ battery
2 months ago by
๐ฎ๐น fulmic (
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BobbyN thanks for the clarifications i will check your way.
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๐ battery
2 months ago by
๐ฎ๐น fulmic (
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Good Morning, I have one question regarding the battery power for a ship.
I have an Elke Graupner boat and I use a battery Pb 6V to run the ESC and the RX in the same time. Same of the time the Tx show me the message "low voltage at the Rx".
In this case can I add a battery NiMh 6V on the channel 6 of the RX just for power of the RX and keep in the same time the main battery for the ESC on the channel 1? thanks Fulvio
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๐ Comtesse Robbe sail boat
4 months ago by
๐ฎ๐น fulmic (
Petty Officer 2nd Class)
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Good morning to all of You. I have a 22 years old Comtesse boat from Robbe and i would like now to add for fun an electric motor + battery pack 6V + ESC for Brush motors.
I have spare from my airmodel activity 1 motor Graupner Speed 400 brushed. I would like to ask if this motor with a propeller with 3 blades with 35 mm diameter can be suitable.
The scope for me is to utilize the motor if no enough wind and in this case to back close to me with the model. I suppose the Speed 400 motor is too powerfull but in case i can use just half of the engine stick stroke. What do you think? can i do it. Thanks Fulvio
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๐ Graupner Torpedo Boat "DACHS"
1 year ago by
๐ฎ๐น fulmic (
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Herman Thanks super.
Perfect, i can now print myself is enough.
If you have also the manual will be super.
Thanks
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๐ Graupner Torpedo Boat "DACHS"
1 year ago by
๐ฎ๐น fulmic (
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Thanks LewZ
You done a grest job. The informations are really suitables. Thanks
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๐ Graupner Torpedo Boat "DACHS"
1 year ago by
๐ฎ๐น fulmic (
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Good Morning Team, i would like to ask if some of you have the drawings of the Torpedo Dachs by Graupner. Will be fantastic also pictures of the original drawings just in order to understand all the detail. Will be goos also manual of any type of document related with such model. I attach here also the picture of the model. Thanks Fulvio
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Doug thanks I lost su ho post now is clear at least better leds than bulbs. Bulbs utilize more power but I will need to use at least 2 of them but I will switch few minutes a for this reason will be not creatival I suppose. I will back to you as soon model will be finish or almost finish in order to show you result of project. Thanks and sorry for stress provided you but at least now due to your help and of some other team members I have basic knowledge on topic. Thanks Fulvio
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Doug good evening but just to understand at the end of all our discussion is not clear for me if is better utilize LEDS or light maybe Leds has long live more than lights? And can I use in the same group led and lights?
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Doug good morning
Your explanation is cristal thanks job done.
Just one more topic. Is possible on the same group of lights utilize LEDS and Lights? Or is better keep separate Leds from Lights?
Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Doug what do you think that if i utilize a switch as per your specifications and the second one that i need for the second group of leds i utilize the switch that i attach here the picture? i used this for a brush motor for a air model time ago. He get signal from RX and then has the direct connection with battery and connection with possible electrical motor that in this case i connect with second group of leds. I ask you because at least i re utilize this switch other way i do not use any more. Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
Petty Officer 2nd Class)
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Doug good morning
Clear the concept of the 2 switch independently for the 2 groups of LED.
Or even better the switch that you suggest to me 1 switch for 2 groups.
Now just to be sure
The LEDS of one group have to be connect between them in Parallel?
Moreover i understood well that finally is more reliable utilize LEDS with resistor than Lights at 6V? is this correct?
Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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I send you again the picture of switch is 8 amperes. I show you this because I founded it in amazon. Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Dave I fell I understood well I need to use a switch with the auxiliary connection from the main battery in order to get power from battery and signal from RX. Correct? In this case if I have 2 groups of lights to control indipendente I need 2 switch. Correct? Moreover finally is better Leds or lights? If I understood well Leds are better. Of course Leds with the relative resistor. The leds have to be connect in parallel between them for each group of Leds? Last question Marca 300 is the name of the producer of switch? What I show you in my picture is for 9 amperes is too big?
Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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I forgot to replay you that I do not have other equipment installed only lights I would like to add on my model but as wrote devised in 2 groups one group is the position light and the second group is working light to make light on the bridge for the figures that works with fish. Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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This are the 2 types of switchโs mentioned before by me. Which one I need to use? Thanks you really support me
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๐ Different between leds and lgbts for boat
2 years ago by
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Good Morning Doug and Dave, sorry for delay in replay but i was busy on the job. I understood your comments, i suppose better to make pictures of the different equipments and also i will prepare a new scheme of connection. I can now confirm that i bought the LEDS already with the resistor applied. I still wait for the leds because i ordered.
Tomorrow morning i will post the info. Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Dave maybe i understood i need to use the switch that has 3 cables. One for Rx one connection for Leds and one connection directly from main battery in this case RX control the signal and the power come from battery in this case RX is safe from extra load in terms of current. Correct?
Vice versa without the direct battery connection with battery (switch with 3 cables) and i have a switch with one connection to Rx and the other side i connect to leds i can use just one led or maximum 2 Leds connected together on the same switch in order to not suck to much power via RX. Correct? Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Dave i utilize a Graupner MC16 at 2,4Ghz. I have free channels over the 4 proportional one. In this case i can utilize the switchs for control the lights.
The switch to utilize is the same of the attached picture? in this case of course one side i plug inside the RX at the channel 5 for example but at the other side of the switch can i connect 3 leds for example? of course i jont 3 led in one female plug to connect with the switch but the topic is this switch can supply 3 leds in one time or i switch is only for 1 led?
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Thanks Len for upgrade
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Dave thanks for remarks in part are clear for this reason i try to resume with my words. First you need to know that 25 years ago i started with air model and i still fly with my models (18 Models) but few months ago i started with the idea to have a couple of boats just in case. I like fishing boats because i like the details.
Based on it i bought a Graupner Krabbe 12Ton old but still in box. I started to assembly and to paint now the model is almost finish from the structure point of view and i start to approach the light topic.
In the model i will use a RX Graupner GR12 and a battery Pb 6V to supply power to RX via the ESC of 10 Ampere due to the fact that the motor a Graupner Speed 280 utilize max 2 Ampere.
In this case i already tested Esc, Rx, Motor and battery all works perfect.
Now i start with lights.
I bought LEDS 6V diameter 3mm. I bought green, red and white color.
My concept is to split the lights in 2 groups. One group the so call position light (green, red, 1 white inside cabin and 1 white color in the back of the model. Second group i would like to put 3 o 4 LED white color around the boat as working lights in order to make light on the brig where the people operate with fish. In this case first group of lights just to move the model and second to work. I need to consider that group 1 and group 2 of the led can be ON in the same time.
On the draft that i send you before in priciple you can see the 2 groups of LEDs. Up to now i set up to exit from the main battery. One live to the ESC just for motor and RX. The second wire exit from main battery always 6V will be to connect the full LED system. Now if i devide the LEDS in 2 group how i control the 2 groups? i understood is better do not go true the RX and this is clear. An so how i can do? I can use a switch to connect to RX and in the other side of switch i connect a group of LEDS? but in this case as you wrote can be a problem for RX because to much leds on each group. This is my actual situation and understanding on the topic. Maybe i need some different device or switch that can support more leds for each group? in a previous model of boat that also i bought months ago (Graupner ELKE) the lights was installed already (leds) but the system in part done included the solution to utilize servos (regular servo) to close the contact circuit in this case the power was not truogh the RX but was indipendent line only for light but i utilized 2 servo as switch. Now in this new model what is better to do?
Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Good Morning Dave
Thanks for your clarifications, but due to my school knowledge i am far for eletrical topis. For this reason i need to ask you almost the same things but in my way. I will utilize for my Graupner Krabbe 12T a battery 6V Pb at 2,8 A/h. With the same battery i would like to energize the LEDS.
Here i attach you can find what is my project in order to understand how many Leds i will install. I understood from the posts that is better in Parallel. But what for example is not clear why you mentioned 2V for LEDS. I have a battery 6V and i bought the LEDS for 6V with 3mm diameter. In this case can i Use at 6V?. Moreover can i use for example 4 leds and all 4 leds jont in a single connection that i connect to channel 4 for example of my RX? in different way can i connect more than one LED on a single channel of the RX powered always from the main battery at 6V? I atatch to the present mail the draft of my project in order to have your techncial opinion.
Thanks
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๐ Different between leds and lgbts for boat
2 years ago by
๐ฎ๐น fulmic (
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Good evening I would like to ask which is the different between Led at 6V and light at 6V with the same shape of the LEDs. Because if I use light I do not need to apply as on the Led the resistor. Thanks
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๐ GRAUPNER SPEED PROFI 25 REGULATOR
2 years ago by
๐ฎ๐น fulmic (
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Good Morning Doug, Just a couple of more clarifications.
Of which material i need to use the thrust washer between the prop and the tube? Copper? Brass?
Please can you indicate me where to find on the web a Low Battery Alarm Buzzer for 6V battery Lead? because i can find only for LiPo batteries.
Which one is the different between LED at 6 Volts and the lights at 6Volts?
Because i can find LED and Lamps with the same shape of the LEDS. The question is generated becausee if i utilize the lamps i do not need to utilize the resistors as on the LED. Thanks
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๐ GRAUPNER SPEED PROFI 25 REGULATOR
2 years ago by
๐ฎ๐น fulmic (
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Doug here i attach the picture of what i mentioned in the previous mail
The Switch to connect to the RX and the group of Leds, in this case i need to switch of this one for one gruop of leds and the second for the second group of leds. Moreover i attach the picture of the ESC that i founded in order to utilize the PB battery. This esc works with NiCd batteries and i suppose can works with Pb. Thanks and i hope in your help and also that the informations are enough to make you a clear picture of my project.Ciao
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๐ GRAUPNER SPEED PROFI 25 REGULATOR
2 years ago by
๐ฎ๐น fulmic (
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Dear Doug, thanks for replay but i become your nightmare because now i need to finalize all the information on the realization of the project.
I attach here 2 pages where i resume the situation. On page 1 i rappresent the total situation related with all the equipments to be utilize on my Krabbe 12Ton Graupner. On the Page 1 i rappresent also the location and the number of Leds that i would like to utilize on the boat. On the page 2 i show the Leds and the relative Resistors to utilize according the color.
I would like to ask you to check if the Resistors mentioned by me are corrects according the Led Color. Moreover always on page 2 i ask in which way to connect the LEds if in Series or Parralel or one by one and in this case each of them with one Resistor that is suppose is the best way. Moreover i would like to switch on in the same time by the same switch the 2 white leds on the Mast Plus the 2 White leds *one infrom of the cabin and 1 on the back of cabin. Moreover by a second channel i would like to switch on by the same switch the Red ] Green Led and the Led inside the cabin. Now what i really do not know is how to power this 2 groups of Leds. I would like to use the same battery that i use for the main motor ( Pb 6V with 4200 mA/h) but how to switch on the to groups indipendently on from the other? I need to utilize to Switch to connect in 2 different channels of the RX for example channel 5 and 6? But can i use a switch connected with RX to switch for example the 4 white leds all in one time? what i need to jont the 4 wires (-) and the 4 wires (+) of the leds to joint the switch? please see page 3 of the attached document. and in the same way i can use a secontd switch to connect to an other channel of the RX where i joint 1 led white+1 led red+1 led green? Morever the main battery can support motor plus leds. Of course i do not keep the leds ON for all time just for example 10 minutes considering that such battery for my 280 Speed motor can supply power for at least 60 minutes (only for motor). Thanks
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๐ GRAUPNER SPEED PROFI 25 REGULATOR
2 years ago by
๐ฎ๐น fulmic (
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Thanks Doug for your complete explanation. I will follow your concepts for sure. One more topic the ESC 10 amperes normally for brushes motor is suggested for Lipo and NiMh battery. Can I use it with Pb battery? I suppose yes. Thanks and happy Xmas to you and your family. Ciao
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