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Author Topic: KNK RC Boat Jupiter P550  (Read 6144 times)

norry

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KNK RC Boat Jupiter P550
« on: February 08, 2010, 02:43:04 pm »

...Hi Guys...

I have this Cruiser in my collection of model boats...

I was wondering if anyone knew anything about this kit...

It is made byThe CHIKYUDO MODEL Co Ltd......It is a JUPITER P 550 Cruiser...

Length 550mm... Width 180mm ... Gross Weight 1.8kgIt is made from heavy Plastic...

It has been built rather roughly...All the parts except the Radio Box for inside are there...

If anyone can give me any info on this boat please get in touch...

...Best Regards...Norry...
« Last Edit: February 08, 2010, 02:47:58 pm by norry »
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DickyD

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Re: KNK RC Boat Jupiter P550
« Reply #1 on: February 08, 2010, 03:20:37 pm »

Google translation of the Japanese.

Electric Boat ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Radio Control
※オールパーツ入り(船体,モーター,スクリューセット,船具) ※ into all parts (hull, motor, set screws, ship chandlery)
・樹脂成形:船体,甲板,スクリュープロペラ,他  ・金属部品:プロペラシャフト,RC舵,支柱,他  ・動力モーター:マブチRS540S(ノイズキラーコンデンサー,コネクター,他) , Molding: a hull, deck, screw propeller, other metal parts: a propeller shaft, RC rudder, strut, other power Motor: Mabuchi RS540S (Noizukirakondensa, connectors, etc.)
・コントローラー:KNKモーターコントローラー(低速~高速2段後進1段) - Controller: KNK motor controller (slow - fast two-stage backward one stage)
※搭載RCメカ 2チャンネル,2サボプロポ ※2チャンネルプロポ,ニッカド電池(6~7.6V)は別売(電動カー用と併用可能) ※ RC mechanism with two-channel, 2 Channerupuropo Sabopuropo ※ 2, nickel-cadmium battery (6 ~ 7.6V) is sold separately (available for use with electric cars)
※ラジオコントロール電動ボート  <RADIO.CONTROLLED Model Boat> ※ electric radio control boat <RADIO.CONTROLLED Model Boat>

METKYP550     地球堂模型店 Earth model shop Hall
<CHIKYUDO MODEL> <CHIKYUDO MODEL>
KIT NO.P550 KIT NO.P550    Jupiter Jupiter
P550 P550
ジュピター Jupiter※ Captain: 550mm
※船形:外洋クルーザー※プラスチック ABS成形船体 ※船形: ※ ocean cruiser hull molded ABS plastic

All I could find, good eh ? {:-{

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norry

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Re: KNK RC Boat Jupiter P550
« Reply #2 on: February 08, 2010, 04:25:12 pm »

...Hi DickyD...

I had already found this information on Google but it dont make much sense...

I am trying to find out things like a date of build,Cost of kit etc...

...Best Regards...Norry...
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M8dave

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Re: KNK RC Boat Jupiter P550
« Reply #3 on: May 21, 2020, 01:17:45 pm »

Di you ever find out about this as I have one that I am doing up
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Backerther

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Re: KNK RC Boat Jupiter P550
« Reply #4 on: February 22, 2021, 01:50:46 pm »

Hi
 I have the boat as shown below.
water-cooled 540 brushed motor.
but noisy due to the oldham's coupling! {:-{ :((


Larger version of Jupiter F-99 is much ,much better as silent ,fast,dynamic,etc...


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Backerther

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Re: KNK RC Boat Jupiter P550
« Reply #5 on: February 23, 2021, 08:08:46 am »

This boat ,if my memory is correct,was put into market over 40 years ago and I actually
purchased my first Jupiter P550 at 1980 when was the time just after the sale from the Chikyudoh,in Japanese 地球堂。
The price was around 15000 yen,USD144.
The second Jupiter of my own is still in service as a recovery boat for other larger boats.
But she was modified for  water-cooled using coiled pipes as the 540 motor soon gets hot in a several minutes
in my case. :(( {:-{
[size=78%]However, reborn water-cooled  Jupiter p550 is running without over heat of  the motor.[/size]
1;my first Jupiter P550
2;~my second P550 modified to water-cooled.
7;cooling water can be seen ..can you confirm it ?? %)
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Backerther

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Re: KNK RC Boat Jupiter P550
« Reply #6 on: March 09, 2021, 02:08:32 pm »

I replaced the screw prop with a home-made larger in diameter and three blade props
as well as high pitch for a higher speed.
But the test run has no been done yet so far and it will be done in coming April when my local lake will be over for
a reconstruction work.
This boat is supposed to use for recovery when another boats get stuck on the water.
She is over 40 years old and therefore cosmetic surgery seems required if she should hope to be a regular member
of my fleet formally... {-) {:-{
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Backerther

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Re: KNK RC Boat Jupiter P550
« Reply #7 on: March 10, 2021, 05:39:16 am »

And screw joint was also replaced with a hand-made one as shown simply but tough enough for its appearance. ;)
The background of the replacement was to diminish the noisy sound of the former joint.
The new one is effective to decrease the sound to some extent.And I refilled the grease into the stun tube by which
the sound became softer and milder. %% 
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warspite

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Re: KNK RC Boat Jupiter P550
« Reply #8 on: March 10, 2021, 10:00:07 am »

Would it be prudent to change the screw to the motor end of the coupling also to a 'grub' screw to reduce vibration ?
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Backerther

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Re: KNK RC Boat Jupiter P550
« Reply #9 on: March 10, 2021, 11:37:26 am »

Hi warspite;


Thank you for your question!
I found this prop by chance in my parts box and this one is larger and largely twisted blades than present one.
That's because I simply installed it for a test in coming April if she could run faster.
The new joint contributes to decrease the noise of present one clearly on the table test.
I am anxious about the noisy sound of the joint where is apparently  the very source of the sound and vibration. {:-{
After changing the old joint,it has become more silent than ever before clearly, by which I am satisfied with it
to some extent. ok2


As for the fixing screw of the joint at the motor side,it is just provisional and may be changed to hollow-head screw
as in the other side of the joint.


Hope these help to understand.


 
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