Thread Tools
Jun 18, 2019, 03:31 PM
pnc
pnc
Registered User
pnc's Avatar
Thread OP
Help!

Lehner motor


I have a Lehner 1930 8D 16S and have no idea how many cells or what prop o can run with it it has a gearbox and a 6mm shaft..
Help please

Pete Hoeve
Sign up now
to remove ads between posts
Jun 18, 2019, 03:43 PM
homo ludens modellisticus
Ron van Sommeren's Avatar
Is it configured in delta/triangle or star/wye?
Kv_Δ = √3 Kv_Y

www.lehner-shop.com/en/inrunner/series-19/1930.html
→ Products description: Operating instruction and specifications, RPM-Table, Motor calculator & Performance diagram, FAQ

Vriendelijke groeten Ron
Last edited by Ron van Sommeren; Jun 18, 2019 at 04:51 PM.
Jun 18, 2019, 04:46 PM
Registered User
Hi,
the pic show the 1930/8 delta. That has 2613 kv but not free runing , itˋs at load and 15 degree timing set up.
http://www.lehner-motoren.com/doc/rp...en_11_2013.pdf
See the description for soldering the bridges from delta to star.
http://www.lehner-motoren.com/doc/ma...en_11_2013.pdf .
The gear is a Reisenauer gear to know what reduction you have to mark the motor shaft at the backplate and also set a mark at the 6mm shaft from the gear. And than turn the 6 mm shaft and count how much revolution does the shaft doing one revolution at the gear. Simplee math and all are happy.

Happy Amps Christian
Jun 19, 2019, 12:04 AM
pnc
pnc
Registered User
pnc's Avatar
Thread OP
So it sounds like I can run a 135 mezon and a 17x21 gm prop on 8 cells or 6 cells .
I might start with a rfm 1618 thin and see where I'm at for amps .I will figure out the gearbox ratio tomorrow thanks to both of you for the expertise
.. Pete
Jun 19, 2019, 10:53 AM
pnc
pnc
Registered User
pnc's Avatar
Thread OP
Its around 6 to 1 gearbox
Jun 19, 2019, 11:37 AM
homo ludens modellisticus
Ron van Sommeren's Avatar
Christian is the expert, after all, he designed the Lehners (all types??)
I merely know where to find the knowledge/experts.

Vriendelijke groeten Ron
Jun 20, 2019, 10:52 AM
pnc
pnc
Registered User
pnc's Avatar
Thread OP
Thank you to both of you

Pete


Quick Reply
Message:

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question Lehner motor STEVEAIR2 Electric Ducted Fan Jet Talk 2 Jun 05, 2017 01:09 PM
Discussion lehner motor for schubler 120 fan Eddy Large EDF Jets 10 May 16, 2017 04:00 PM
anyone know how many pole motor are Lehner Motors? Splash Power Systems 5 Apr 26, 2005 10:54 AM
"Lehner" motors. Kimble_Schmitz Electric Sailplanes 19 Mar 01, 2002 11:09 AM
Lehner 15-15-15 , bl motor misskimo Electric Heli Talk 1 Oct 28, 2001 10:33 AM