Update on Tank-gear-reductions

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=80 BGCOLOR="#000000" TEXT="#F7F7FF" bgproperties="fixed" background="03800500dvldtc.png"> <div> <FONT SIZE="5" COLOR="#FFCC66" FACE="Arial" ><B> Wild Willy Racing  Custom R / C models Tamiya </B></FONT><B>     |     </B><A HREF="index.htm" TARGET="_top" TITLE=" Wild Willy Racing Custom R / C models "><B>home</B></A></div> <div> <A HREF="index.htm" TARGET="_top" TITLE=" Wild Willy Racing Custom R / C models "><B><IMG SRC="03b0e0e0.png" border=0 width="14" height="14" ALT="up" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></A><B>  </B><IMG BORDER="0" SRC="1x1.gif" HEIGHT="14" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" WIDTH="14"><B>     </B><A HREF="id455.htm" TARGET="_top" TITLE="Tank gearreductions"><B><IMG SRC="03a0e0e0.png" border=0 width="14" height="14" ALT="previous" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></A><B>  </B><A HREF="id498.htm" TARGET="_top" TITLE="Tiger 1 with New King Tiger gearboxes"><B><IMG SRC="03c0e0e0.png" border=0 width="14" height="14" ALT="next" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></A></div> <div> </div> </td> </tr><tr> <td valign="top" width=210 BGCOLOR="#000000" TEXT="#F7F7FF" background="039d2c00dvldtc.png"> <div> <B>back to :</B></div> <div> <B>NEW : </B><FONT SIZE="3" COLOR="#FFFFFF" FACE="Arial" ><B>Gearreductions for :</B></FONT></div> <div> <A HREF="id498.htm" TARGET="_top" TITLE="Tiger 1 with New King Tiger gearboxes"><B>Tiger 1 with New King Tiger gearboxes</B></A></div> <div> <B>NEW :</B></div> <div> <A HREF="id498_lower_rpm_380_motors.htm" TARGET="_top" TITLE="Tiger 1 with New King Tiger gearboxes"><B>lower RPM 380 motors</B></A></div> <div> <B>and motor-pinion's</B></div> <bR> <div> <A HREF="id455.htm" TARGET="_top" TITLE="Tank gearreductions"><B>Tank gear-reductions</B></A></div> <bR> <div> <A HREF="id494.htm" TARGET="_top" TITLE="Installation tankgearreductions"><B>Installation tank-gear-reductions</B></A></div> <bR> <div> <A HREF="id495.htm" TARGET="_top" TITLE="Installation gearreductions New King Tig"><B>Installation gear-reductions New King Tiger</B></A></div> <bR> <div> <A HREF="id496.htm" TARGET="_top" TITLE="tank chassis reenforcmentplates"><B>tank chassis re-enforcment-plates</B></A></div> <bR> <div> <A HREF="id493_m.htm#pricing_and_ordering_" TARGET="TRLX_Middle" TITLE="Update on Tankgearreductions"><B>Pricing and Ordering </B></A></div> <bR> </td> <td valign="top" height=400 width="100%" BGCOLOR="#000000" TEXT="#F7F7FF"> <div> Update on Tank-gear-reductions</div> <div> <B>o</B></div> <div> <B>Update on gear-reductions for Tamiya 1/16 R/C tanks</B><FONT SIZE="3" COLOR="#FFFFFF" FACE="Arial" >                 5 June 2003</FONT></div> <div> <B>From Willy / CustomRCmodels</B></div> <div> <B>see also :</B></div> <div> <A HREF="http://www.customrcmodels.com/Tanks" TARGET="_top" TITLE="http://www.customrcmodels.com/Tanks"><B>www.CustomRCmodels.com/Tanks</B></A></div> <div> <A HREF="http://www.customrcmodels.com/Tanks/id78.htm" TARGET="_top" TITLE="http://www.customrcmodels.com/Tanks/id78"><B>http://www.customrcmodels.com/Tanks/id78.htm</B></A></div> <bR> <div> <B>for the true "Tanker" most of the available 1/16 tank's are way to fast .</B></div> <div> <B>WW II tank's didn't had the "rocket" speed as some of the today's tank's .</B></div> <div> <B>a Tiger I max speed was just around 38 km/hr = about 24 miles/hour,</B></div> <div> <B>( in some documentation's I read also around 40 km/hr = about 25 miles/hour )</B></div> <div> <B>with an average off-road speed from 25 km/hr = about 16 miles/hour </B></div> <div> <B>a King Tiger's max speed was 35 km/hr = about 22 miles/hour</B></div> <div> <B>a Sherman's max speed was 38 km/hr = 24 miles/hour ,</B></div> <div> <B>( I always thought the Sherman was faster as the Tiger I , but maybe just off-road ,</B></div> <div> <B>I will get me more detailed data on that )</B></div> <div> <B>I believe the  T-34 was the fastest with 55km/hr = 34 miles/hour</B></div> <div> <B>anyway's , no matter if my data here is absolute corrected one thing is a fact ,</B></div> <div> <B>the gearing of most of the available tank-kit's is way to fast .</B></div> <div> <B>Tamiya's Tiger I ( with a gear-ratio from 46:1 , old type DMD drives ... )</B></div> <div> <B>equals to a scale speed from about 69 km/hr = 43 miles/hour .</B></div> <div> <B>You could say now , that why we have a throttle on our remote-controls ,</B></div> <div> <B>what is true , but if you run your model like the Tiger I only with 1/2 speed ,</B></div> <div> <B>you never get the max out of the engine-sound .</B></div> <div> <B>Solution , gear-reduction and slower motor's .</B></div> <bR> <div> First the <B>Tiger 1</B> with the <B>old type DMD gearing</B> </div> <div> 10 tooth motor-pinions  , 46:1 original gear-ratio </div> <bR> <div> as I mentioned before I can not do all the different gear-ratios stated on my website ,</div> <div> since I could not get the required gears .</div> <bR> <div> so far the only option for the Tiger 1 is the 120:1 overall gear-ratio .</div> <div> in addition to that I can over now also a 142:1 gear-ratio , but first have to test that ,</div> <div> since I am using here a 11 tooth output-gear was is quite small to be fit on an 4mm shaft .</div> <div> to secure it better on the shaft I also have to glue it , since I don't trust the setscrew alone</div> <div> in this case , what makes the disassembling of this gear-reduction more difficult . </div> <bR> <div> so far recommended setup 120:1 and if slower speed is required the use of additional slower motor's , like the Zagi's  ( I am testing right now a few different type motor's ,</div> <div>                                                                   results out of that to a later time )</div> <div> as an additional option , the new King Tiger gearboxes can also be used in a Tiger 1 </div> <div> ( but you have to use the gearbox-mounts / studs from the Tiger 1 gearboxes ,</div> <div> or I can supply you with these studs ….)</div> <div> with the use of the new King Tiger gearboxes in a Tiger 1 , more gear-ratio options are possible, see below “New King Tiger with new type gearboxes”</div> <bR> <div> <B>older King Tiger</B> with <B>old type DMD gearing</B> </div> <div> 12 tooth motor-pinions , 37:1 overall gear-ratio</div> <bR> <div> gear-ratio available so far 97:1 , if 10 tooth motor-pinions are used it's  116:1</div> <div> as alternative I am testing the 11 tooth output-gear setup ( see Tiger 1 ) ,</div> <div> what would give with the stock 12 tooth motor-pinions a 114:1 overall gear-ratio .</div> <div> with the use of 10 tooth motor-pinions it would be 137:1</div> <bR> <div> so far recommended setup 116:1 with the use of 10 tooth motor-pinions </div> <div> and if slower speed is required the use of additional slower motor's , like the Zagi's</div> <div> ( I am testing right now a few different type motor's ,</div> <div> results out of that to a later time )</div> <bR> <bR> <div> NEW  gear-reductions for new type gearboxes </div> <div> <B>New King Tiger </B>with <B>new type gearboxes</B> ( with the black covers ) </div> <div> 10 tooth motor-pinion's overall gear-ratio about 60:1</div> <div> possible options </div> <div> output-gear             final overall</div> <div> ( gear-reduction )     gear-ratio</div> <div>     20 tooth………….102:1</div> <div>     19 tooth………….107:1</div> <div>     18 tooth………….113:1 tested scale speed 16.8 miles / 26.8 km / hour on-road </div> <div>                                                 and 15.6 miles / 25 km / hour off-road ...</div> <div>     17 tooth………….120:1</div> <div>     16 tooth………….127:1</div> <div>     15 tooth………….136:1 tested scale speed 13.8 miles / 22.3 km / hour on-road</div> <div>     14 tooth………….146:1</div> <div>     13 tooth………….156:1</div> <div> recommended setup here the 120:1 to get the same speed like the older Tiger's .</div> <div> right now I am testing the 136:1 with the 15 tooth output-gears</div> <bR> <div> New Sherman  ( Updated 6 July 2003 )</div> <div> 18 tooth output-gears with 12 tooth motor-pinions ( original 10 tooth )</div> <div> gear-ratio 94:1 , tested true-scale speed  15.6miles / 25 km / hour</div> <bR> <div> <B>Pershing </B>, not checked yet ……</div> <bR> <div> I will post more updates as soon testing is done …….</div> <bR> <div> <B>New item:</B></div> <div> <B>Chassis re-enforcement-plate for Tiger 1 and old and new King Tiger</B> </div> <div> A known problem with the wear of the old style gear-boxes is the design of the gearboxes, and the relatively flimsy chassis . </div> <div> By stiffen the chassis the life-expectance of these gear-boxes can be extended .</div> <div> For the old style gear-boxes is a gear-box-re-enforcement-kit available ,</div> <div> ( as I used it in my old King Tiger , see photos ).</div> <div> Since there is nothing for the new style gear-boxes , I made chassis-re-enforcement-plates</div> <div> For the Tiger 1 and old and new King Tiger .</div> <div> The chassis-plates bolt to the tank from the bottom with counter-sunk-screws , what gives a smooth bottom without having any screws sticking out .</div> <div> These plates are made from 1/8 ( 3mm ) Alloy and have all holes to mount any gear-box in any tank , means you could use new King Tiger gearboxes in a Tiger 1 …..</div> <div> Every hole from the original chassis are in these plates plus the extra holes for the different type gear-boxes…..</div> <div> ( see photos ) </div> <bR> <bR> <div> <B>UPDATE as of 06-26-2003</B></div> <bR> <div> <B>New King Tiger with new type gearboxes ( with the black covers ) </B></div> <div> <B>10 tooth motor-pinion's overall gear-ratio about 60:1</B></div> <div> possible options </div> <div> output-gear             final overall</div> <div> ( gear-reduction )     gear-ratio</div> <div>     20 tooth………….102:1 ( probably not possible due space-limitations )</div> <div>     19 tooth………….107:1 ( probably not possible due space-limitations )</div> <div>     18 tooth………….113:1  tested</div> <div>     17 tooth………….120:1</div> <div>     16 tooth………….127:1</div> <div>     15 tooth………….136:1  tested</div> <div>     14 tooth………….146:1</div> <div>     13 tooth………….156:1</div> <bR> <bR> <div> <B>as comparision here the data for the old style gear-boxes :</B></div> <bR> <div> <B>Tiger 1 with the old type DMD gearing </B></div> <div> <B>46:1 original gear-ratio </B></div> <bR> <div> output-gear</div> <div> (gear-reduction)     overall gear-ratio</div> <div> 13 tooth …………100:1  12 tooth motor-pinion</div> <div>                                tested off-road speed 17.6 miles / 28.3 km / hour </div> <div> 13 tooth .............. 120:1   10 tooth motor-pinion ( original )   tested</div> <div> 11 tooth ...............142:1   10 tooth motor-pinion ( original )</div> <bR> <div> <B>older King Tiger with old type DMD gearing </B></div> <div> <B>12 tooth motor-pinions , 37:1 overall gear-ratio</B></div> <bR> <div> output-gear</div> <div> (gear-reduction)     overall gear-ratio</div> <bR> <div> 13 tooth ................ 97:1 , if 12 tooth motor-pinions are used it's    tested</div> <div> 13 tooth ...............116:1  ,if 10 tooth motor-pinions are used it's    tested</div> <div> 11 tooth ...............114:1  ,if 12 tooth motor-pinions are used it's    tested</div> <div> 11 tooth ...............137:1  ,if 10 tooth motor-pinions are used it's    tested</div> <bR> <bR> <div> 6 July 2003</div> <div> that special setup of my <B>old King Tiger </B>with the <B>old style gear-boxes</B>,</div> <div> <B>gear-reductions</B> and the <B>540 low RPM motor's</B> </div> <div> tested true-scale-speed 12.8 miles / 21 km/hour off-road </div> <bR> <bR> <div> <B>gear-ratio to true scale-speed chart :</B></div> <bR> <div> 160:1</div> <bR> <div> 150:1</div> <bR> <div> 140:1</div> <div>                                                                                                               x</div> <div> 130:1</div> <bR> <div> 120:1</div> <div>                                                                                                      x</div> <div> 110:1</div> <bR> <div> 100:1                                                                               x</div> <bR> <div>   90:1</div> <bR> <div>   80:1</div> <bR> <div>   70:1</div> <bR> <div>   60:1</div> <bR> <div>   50:1</div> <bR> <div>   40:1                    x</div> <bR> <div>   30:1</div> <bR> <div> scale speed  70             60             50             40              30              20 km/hr</div> <bR> <bR> <bR> <div> <B> <A NAME="pricing_and_ordering_"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><B>Pricing and Ordering :</B></div> <bR> <div>  1 set ( 2 ) gear-reductions $ 95.-</div> <div> direct bolt on , no holes to drill or any other type of machining ,</div> <div> as simple as replacing the motor's …..</div> <div> when ordering please indicate for what tank and what type gear-box </div> <bR> <div> Chassis-re-enforcement-plates   $ 65.- </div> <div> Comes with all new stainless-steel-countersunk screws …</div> <div> Please indicate for which tank …..</div> <bR> <div> Just send me an email to : <A HREF="mailto:customrcmodels@cs.com" TARGET="_top" TITLE="mailto:customrcmodels@cs.com"><U>customrcmodels@cs.com</U></A> , or <A HREF="mailto:willy@customrcmodels.com" TARGET="_top" TITLE="mailto:willy@customrcmodels.com"><U>willy@customrcmodels.com</U></A></div> <div> Or you can call me at : 860-836-4652</div> <bR> <div> As payments I can accepted credit-cards only via Paypal ( <A HREF="http://www.paypal.com" TARGET="_top" TITLE="http://www.paypal.com"><U>www.paypal.com</U></A> )</div> <div> Or money-orders or personal check .</div> <bR> <div> Please add $ 7.- for shipping within the US ,</div> <div> international $ 10.- to $ 20.- depending ......please ask ..... </div> <bR> <div> Please indicate in your order-email which way you like to pay …</div> <bR> <div> If you pay with Paypal , please add 4% ( 5% for international orders ) of the total ( Paypal-fee's )</div> <div> My Paypal id/email is : <A HREF="mailto:customrcmodels@cs.com" TARGET="_top" TITLE="mailto:customrcmodels@cs.com"><U>customrcmodels@cs.com</U></A> ( for NON-credit-card-payments )</div> <div>                                        Or  <A HREF="mailto:willyloewer@cs.com" TARGET="_top" TITLE="mailto:willyloewer@cs.com"><U>willyloewer@cs.com</U></A> ( for credit-card-payments )</div> <bR> <div> Upon receiving your order-email , I will send you an invoice with the total </div> <bR> <div> All my items are custom hand made ( no mass-production ) and tested for function and proper fit before shipping .</div> <bR> <div> If you don't like it for any reason , you will get a full refund after returning the parts ,</div> <div> ( as long they are not damaged and can be re-used ) minus the shipping-charges .</div> <bR> <div> I ship priority-mail insured with delivery-confirmation , </div> <div> If you prefer any other shipping , please let me know . </div> <bR> <div> For any questions , please feel free to contacted me at any time </div> <div> Via email : <A HREF="mailto:customrcmodels@cs.com" TARGET="_top" TITLE="mailto:customrcmodels@cs.com"><U>customrcmodels@cs.com</U></A> or <A HREF="mailto:willy@customrcmodels.com" TARGET="_top" TITLE="mailto:willy@customrcmodels.com"><U>willy@customrcmodels.com</U></A> </div> <div> or via phone : 860-836-4652 ( cell-phone )</div> <bR> <div> <B>Willy</B></div> <div> <A HREF="mailto:customrcmodels@cs.com" TARGET="_top" TITLE="mailto:customrcmodels@cs.com"><B><U>customrcmodels@cs.com</U></B></A></div> <div> <A HREF="http://www.customrcmodels.com" TARGET="_top" TITLE="http://www.customrcmodels.com"><B><U>www.CustomRCmodels.com</U></B></A></div> <div>   </div> <bR> <bR> </td> </tr></table></body>