Which Align Motor?

[Jim5528]

I’m thinking of building a 700 and need help deciding on the motor Align 91H or 91HP motor to put in it.

Thanks

[ualdrivr]

If you are going to stick with Align, then the 91H is a more powerful motor than the Align 91HP. Both of them will do a good job flying the heli.:)

If you go with OS then 91HZ or the new 91HZ-P.:YeaBaby:

Hope this helps.

Here are some links:

http://www.align.com.tw/shop/index.php?cPath=22_88

http://www.osengines.com/engines/osmg1975.html

http://www.osengines.com/engines/osmg1973.html

[rafaelc9436]

if picking align go with align 91h , OS HZ-R and my favorite YS 91 SR oo 3ds

[TCU 02xp]

I recently purchased a 700 and went with the 91H (Black Cooling Head) I was told by many that there is absolutely no difference in the motor and power the only difference is the shape and color of the head. I liked the idea that all of the head is covered with the fan shroud on the 91H. Hope this helps.

[mrivers]

According to the manual that came with my HP, the H & HP motors are identical aside from the head.

[RobertAbles]

The HP will cool a little better and it dissipates a little more heat. Bigger heat sink and better airflow through the sink with the way the 700 fan shroud is designed.

I am currently flying the 91H / MP6, Rotor Rage 30% in Dallas at 100+ degrees and its making great power with very good cooling as well. I have the blue head and will maybe try it and see what temps change as a baseline..

[rafaelc9436]

i saw a picture that then align 91h has a bigger crankshaft then the HP , which is for better performence:thumbup:

[Jim Hansen]

I have both motors and there is absolutely no difference ! Except the head ,like robmoney stated . Hope that helps ,

Also i run the r conversion carb kit on both:thumbup: