Lehner 2250/8 motor and Swordfish 300HV KBB Lite ESC New out of box

[complacent_one]

I just purchased this, last week with ideas of building another boat. Looks like it will be a while, an I will likely just go with cheaper stuff to keep the old lady happy.



The motor is 1480kv loaded, with 8mm shaft and fan option. Motor has not been spun connected, just 8mm male bullets installed.

I am asking SOLD in the us for the lehner and SF300 Lite0404151937.jpg0404151937a.jpg

Bill, payment received and will provide tracking for USPS priority shipping tomorrow 4/17/15.

Thanks,
JS

[complacent_one]

Will entertain partial trades too.

-Neu 1521 1Y 8mm
-Neu 1527 1.5D 8mm
-TP 4070 3Y or 5D
-MGM Compro ESCs
...who knows what else??

[nichismo]

Are you interested in selling just the ESC? I also have a refurbished Swordfish 240amp HV, however its a slightly older model. Id be more than wiling to offer plenty of cash and the ESC for your ESC

EDIT* sorry, didnt realize the red text

[meangenesracing]

I'm not familiar with these motors what size boat would this be a good fit for and what lipos

[complacent_one]

I would ask that someone with bit more knowledge in the subject answer this question.

I can tell you that you can rev this 2 poles quite a bit higher. So if running on 6S, you are looking at appx 32K RPM 8S would be 43K RPM, add around 10 to 11% for the unloaded rpm.

I was going to put in my 33" Mono, you could likely power a larger mono than that too. In a cat, you could run anything from a 25" if you can squeeze it in to a 37" or so. Again, this is not based on personal experience. Either way, you will want an ESC that is up to the task.

I have read quite a few posts about going with higher lipo count and smaller diameter prop to keep the amp load down.

Anyone else that has better info, please feel free to chime in.

Thanks...

[JMSCARD]

I would ask that someone with bit more knowledge in the subject answer this question.

I can tell you that you can rev this 2 poles quite a bit higher. So if running on 6S, you are looking at appx 32K RPM 8S would be 43K RPM, add around 10 to 11% for the unloaded rpm.

I was going to put in my 33" Mono, you could likely power a larger mono than that too. In a cat, you could run anything from a 25" if you can squeeze it in to a 37" or so. Again, this is not based on personal experience. Either way, you will want an ESC that is up to the task.

I have read quite a few posts about going with higher lipo count and smaller diameter prop to keep the amp load down....

Anyone else that has better info, please feel free to chime in.

Thanks...

Here are the size and specs off KBB..

http://keithbradleyboats.com/product/lehner-2250/

its a 44mm X 81mm motor, the 2250 is a powerhouse.... it makes for a ballistic single motored boat in the 30-37" range, and will run as a single motor setup in lightweight electric hulls up to the 40" variety, years ago I had a 40" DF mono and ran it on 8s with a 2250/12... it was a Very great combo, except I severely overpropped in the last run seeking more speed and burnt up a fancy motor when I should have been happy with mid 60's speed... NEWB mistake.... the Lehner can spin some pretty serious RPM, and it will keep amp draw down which is what I should have stuck too! I see many guys also run them in the larger 45" - 50" twin cats as well (2) 2250's with some VERY good outcomes.

Here is the RPM table via LMT

http://www.lehner-motoren.com/doc/rpm_all_en_11_2013.pdf

KV is 1480 on the 2250/8, so as I assume a 6-8s motor is what is being offered here is suitable for a 5s 6s and possibly 7s small prop high rpm single motor setup... and 6s to 8s in a twin format boat...

also to note is lehner lists the KV as a "loaded" kv... so being a 1480kv motor it is more comparable to others brands who rate the motors unloaded (being all others then lehners) so the 2250/8 actual kv is comparable to a 1650kv ish - NEU/Leopard/TP etc.

I'm not a professional, so maybe the other more well versed guys will chime in... but I think this info is pretty good based on my experience with the lehners, and from reading wayyyyy to much :)

[Roy Van De Sande]

Here are the size and specs off KBB..

http://keithbradleyboats.com/product/lehner-2250/

its a 44mm X 81mm motor, the 2250 is a powerhouse.... it makes for a ballistic single motored boat in the 30-37" range, and will run as a single motor setup in lightweight electric hulls up to the 40" variety, years ago I had a 40" DF mono and ran it on 8s with a 2250/12... it was a Very great combo, except I severely overpropped in the last run seeking more speed and burnt up a fancy motor when I should have been happy with mid 60's speed... NEWB mistake.... the Lehner can spin some pretty serious RPM, and it will keep amp draw down which is what I should have stuck too! I see many guys also run them in the larger 45" - 50" twin cats as well (2) 2250's with some VERY good outcomes.

Here is the RPM table via LMT

http://www.lehner-motoren.com/doc/rpm_all_en_11_2013.pdf

KV is 1480 on the 2250/8, so as I assume a 6-8s motor is what is being offered here is suitable for a 5s 6s and possibly 7s small prop high rpm single motor setup... and 6s to 8s in a twin format boat...

also to note is lehner lists the KV as a "loaded" kv... so being a 1480kv motor it is more comparable to others brands who rate the motors unloaded (being all others then lehners) so the 2250/8 actual kv is comparable to a 1650kv ish - NEU/Leopard/TP etc.

A lehner is a 2-pole motor. A TP4050/4060 would have more torque and more power than the lehner but the lehner is the highest quality motor you can get. For a mono, the 6s setup is great for sport running. The 8s setup for a mono is a SAW setup. Don't expect long runtimes because the Lehner will pull some serious amps especially when you prop too big. Make sure you use a good esc for this motor! Good motor for a 33'-40' mono if you are in for some straight speedruns.

[kfxguy]

I'd like to add that these motors are smooth as silk. I'm a neu/castle fan myself but I'm slowly converting over to these motors. They are much smoother (vibration wise) than any other motor I've dealt with. So far mine has been a powerhouse and I'm impressed with it.

[meangenesracing]

Would this be a good choice for a mlboatworksrc.com 1/8 scale Winston eagle lobster extreme hydro?

[complacent_one]

That may be beter answered in the hydroplane section.

Looks like 55mph on a 42mm 1.4pitch prop on 6S.

I think most are spinning a larger prop on lower kv motors with 8s and 10s...but that is not with lehners..

[nmnorth]

is this still for sale ??

[complacent_one]

yes, it is for sale, and I will likely go ahead and sell the sf300 lite too. perfect combo..

[nmnorth]

ok, lets start with the 2250, i don't mean to insult you , or low ball you but you have not been paying attention to the euro these days and you can get a brand new 2250 lehner fot $392 .00 , so i will offer offer you $275.00 max shipped to me . As for the sf300 i'll do $225.00 for a total of $500.00 for it all shipped , let me know , Bill

[oscarel]

yes, it is for sale, and I will likely go ahead and sell the sf300 lite too. perfect combo..

What are you wanting for the Swordfish esc? What MGM controllers are you looking for?

[complacent_one]

ok, lets start with the 2250, i don't mean to insult you , or low ball you but you have not been paying attention to the euro these days and you can get a brand new 2250 lehner fot $392 .00 , so i will offer offer you $275.00 max shipped to me . As for the sf300 i'll do $225.00 for a total of $500.00 for it all shipped , let me know , Bill

Not insulting, but certainly low. Please consider that if you purchase one from a local dealer, you will pay the 392, plus the upgrade for the fan, and the VAT and shipping to the US, plus you will pay shipping to your door. Put one in your cart at LMT and add shipping. Anyhow, $460 is a fair asking price, I am negotiable, but not that much. The best i would do on the package is $700 at this point.