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Henseleit 3DNT - Rocket - 3DMP > A few questions about engines for 3D-NT
 
 
Bonkers
Senior Heliman
Location: Virginia

Since the 91-SX-HGL is no longer available, I might be looking to buy a YS-91SR.

Does the YS-91SR come with the lengthened shaft required by the 3D-NT?

Who sells this engine?

Can a Lotterle carb be used with any engine?
11-07-2007 03:50 PM
 
 
rotor- shark
Veteran
Location: uk

it is extremely unlikely that any ys engine will fit this helicopter because the shaft has to be a heim shaft.if you can't get an os 91 sxh c spec heim,then the only alternative is a webra engine either forward or reverse rotation,or the original os 91 fxh.I don't know of any other heim engines.

all comments are my opinion only!
11-19-2007 01:22 PM
 
 
Bonkers
Senior Heliman
Location: Virginia

Could I get your input on something?

Dave from MotorsAndRotors dropped the price of the OS 91-SX HGL engine to 225-GBP (around $465). So, I bought one.

Well, I get the engine today, and I find two things different about it:

1. The crankcase is silver rather than black (but still says "OS Max SX" on the side).

2. It comes with the 60L carburetor rather than the 60K carburetor.

Is it possible that I got screwed???

What could possibly account for these changes?
12-04-2007 11:16 PM
 
 
helinutz
Senior Heliman
Location: Bournemouth, Dorset, UK

Nope, you got exactly what you should get.
This isnt a C Spec engine, its an older SX motor, so the L carb and silver body are standard.
Nearly everyone who has owned an NT using the OS engine used a lottle carb.
There are a few people who have had success with a Webra 90 with reverse rotation crank, but my only experience is with the OS.
It will fly absolutely fine on the OS, although a bit more power would not go amiss, but you can get the lottle carb with needle set for up to 30% nitro if you need more power, just remember to use only 12% oil though.

Think of how stupid the average person is, and realize half of them are stupider than that
12-05-2007 01:10 AM
 
 
rotor- shark
Veteran
Location: uk

you have ordered the sxh version instead of the sxh c spec version.but with a heim crank.it will still work.don't worry.

all comments are my opinion only!
12-21-2007 12:26 AM
 
 
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Henseleit 3DNT - Rocket - 3DMP > A few questions about engines for 3D-NT
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