Search found 280 matches

by Gerhard Michel
Thu Jan 23, 2020 11:53 am
Forum: Armortek Owners
Topic: Maximizing Run Time?
Replies: 30
Views: 694

Re: Maximizing Run Time?

Oh, IMHO it is not a bad thing to observe the weight of a battery, because in my Jagdtiger the difference between lead acid and LiFe was more than 18 kgs! The lower the weight, the longer the run time; especially in rough grounds! Please remember the headline of this thread...... :wink: Some towing ...
by Gerhard Michel
Mon Jan 20, 2020 12:13 pm
Forum: Armortek Owners
Topic: Maximizing Run Time?
Replies: 30
Views: 694

Re: Maximizing Run Time?

A BMS is a simple and comfortable thing, which e.g. seems to 'transform' a LiFePO4 battery containing four cells to a simple lead acid battery containig six cells. Then you can use a simple lead acid charger with 12 volts fitting a car battery. But most of BMS limit the peak charging voltage beneath...
by Gerhard Michel
Sun Jan 19, 2020 5:19 pm
Forum: Armortek Owners
Topic: Maximizing Run Time?
Replies: 30
Views: 694

Re: Maximizing Run Time?

Single cells are better AND cheaper, When you can spare a BMS! But single cells without BMS MUST be balanced when loading, and you need a reliable system to recognize the end of discharge of every cell (to avoid deep discharge). Complete batteries use a BMS which adds some cost and prevents the cell...
by Gerhard Michel
Sun Jan 19, 2020 11:55 am
Forum: Armortek Owners
Topic: Maximizing Run Time?
Replies: 30
Views: 694

Re: Maximizing Run Time?

This is a possible display of my transmitter. In the right side you can see the voltages of the single LiFe cells. I programmed a spoken warning for each cell deceeding a minimum voltage when not using a BMS. Another very useful screen shows the consumed capacity in amp-hours, the total voltage and ...
by Gerhard Michel
Sat Jan 18, 2020 11:13 pm
Forum: Armortek Owners
Topic: Maximizing Run Time?
Replies: 30
Views: 694

Re: Maximizing Run Time?

I'm using LiFePO4 batteries in four of my five models, with and without battery management systems. If you don't use a BMS, another kind of monitoring each single cell is mandatory for charging and discharging. Lead acid batteries should be discharged only to 50 % DoD (depth of discharge) for a good...
by Gerhard Michel
Wed Jan 08, 2020 1:16 pm
Forum: Armortek Owners
Topic: Detail parts ammo crates
Replies: 1
Views: 227

Re: Detail parts ammo crates

Nice pieces! Ammunition and its containers are interesting parts. Some years ago I ordered the ammunition for the KwK 43 L/71 (King Tiger) with its 4 kinds of shells. It was a rather expensive thing to create the CNC files and build the cartridges from brass and the shells from aluminium: https://ab...
by Gerhard Michel
Thu Jan 02, 2020 12:48 pm
Forum: Knowledge Base
Topic: Transmitter advice needed please
Replies: 17
Views: 721

Re: Transmitter advice needed please

The risk of having a runaway model is present even when using modern GHz RC equipment. In Hausen I saw until now 2 near-accidents: 1. The first model started uncontrolled out of its stop position at a public street with full speed, jumped over the kerb, missed some visitors and dashed against a tree...
by Gerhard Michel
Wed Jan 01, 2020 10:51 pm
Forum: Knowledge Base
Topic: Transmitter advice needed please
Replies: 17
Views: 721

Re: Transmitter advice needed please

I think the behaviour of a receiver missing its transmitter signal is depending on the manufacturer of the RC equipment, but most of the modern GHz receivers have a free programmable fail safe for each channel, and a modern ESC stops the motors immediately when missing a convenient input signal. Mod...
by Gerhard Michel
Wed Jan 01, 2020 12:25 pm
Forum: For Sale and Wanted
Topic: Blank Firing mechanism
Replies: 3
Views: 746

Re: Blank Firing mechanism

Hello Robert,

PM sent.
by Gerhard Michel
Thu Dec 26, 2019 12:29 pm
Forum: Motion Option Pack
Topic: New motion pack motor behaviour
Replies: 23
Views: 532

Re: New motion pack motor behaviour

Hi Oli, if there were tested 3 different transmitter / receiver combos with the same result, then I would seek the reason in the ESC module. Do you use a cross mixer option (one stick direction for driving both motors, another stick direction for steering) or do you use direct steering like driving ...
by Gerhard Michel
Mon Dec 16, 2019 11:13 pm
Forum: Recoil Option Pack
Topic: Smoke when main gun firing
Replies: 15
Views: 4487

Re: Smoke when main gun firing

Gun fire and smoke are very difficult things to show at a model. IMHO a gun recoil is some easier to realize and some more effective than gun smoke. Just have a look at 'my' M48 firing in the dusk. As its driver I could take a look from the outside. With a sharp eye you can even see the tracer of th...
by Gerhard Michel
Wed Nov 20, 2019 11:27 am
Forum: Jagdtiger
Topic: Jagdtiger prototype
Replies: 42
Views: 7866

Re: Jagdtiger prototype

Hi Lerh, thanks for reply. I am using three models with Olaf's steel tracks (one with aluminium roadwheels, two with zamak roadwheels), and I also couldn't find any excessive wearout. Only the Jagdpanther's drive train is worn out due to misfitting steel tracks. But some little wear is normal when u...
by Gerhard Michel
Tue Nov 12, 2019 11:43 am
Forum: Events
Topic: Annual tank meeting 2020 in Hausen (Germany)
Replies: 4
Views: 919

Annual tank meeting 2020 in Hausen (Germany)

Hi guys, Reinhold's annual tank meeting in Hausen am Bach (Germany) is fixed for next year. Arrival and first action will start at July 17, 2020. The main battle starts at July 18, 2020. Further details will be published when fixed. All kinds of military models in 1/6 scale and bigger are welcome. P...
by Gerhard Michel
Wed Nov 06, 2019 10:35 pm
Forum: Jagdtiger
Topic: Jagdtiger prototype
Replies: 42
Views: 7866

Re: Jagdtiger prototype

Here some further pics of the monster. I shot them in Stammheim:

Image

Image



4 x 500 watts powerplant:

Image
by Gerhard Michel
Sun Nov 03, 2019 10:33 pm
Forum: Jagdtiger
Topic: Jagdtiger prototype
Replies: 42
Views: 7866

Re: Jagdtiger prototype

It is true that the KGS 73/800/152 was used in the field and not only on prototypes, because Olaf's single-link (the original) was found near the Eifel, and it was a worn one (today it is part of the wheatcroft collection). Therefore I think that at least some king tigers were equipped with these tr...