The latest technology in soft mounts from Merle Hyde, is an extremely light mount that incorporates the nose ring (see above) that is supported from the firewall. Building a structure in the sides of the engine compartment to support the nose ring is no longer necessary.

Not only does this save weight, it makes a much cleaner and simpler installation of the engine.

Also, there is a threaded stud that protrudes from the back of the mount with a red plastic threaded knob. This makes it much easier to align the mount during the initial installation to the firewall.

Simply attach your engine to the mount, and drill a hole in the firewall large enough to allow some movement of the threaded stud approximately where the mount will be located.  With the plastic knob loosened up enough to allow movement, shift the assembly around until the engine is aligned with the nose, and reaching in from the backside of the firewall, tighten the knob.

Remove the engine and drill the holes in the firewall exactly where they should be.

It couldn't be any easier.

Firm Idle Mark III Series mounts includes exclusive Hyde Safety Features which prevent pull-apart failure very common with other brands. Built to perform where others fail, the Firm Idle Series offer excellent idle properties and reliable rubber bonding. 

HYDE'S "FIRM IDLE" MOUNTS provide better protection than competing "soft" mounts.  The Mark III series mounts reduce dangerous vibration approx. 35%.

All Hyde Mounts are rigorously tested against other brands of "soft" engine mounts.  In test after test, other brands fail in several respects.  First, they fail to adequately protect RC aircraft from dangerous engine vibration at high rpm speeds.  Out of 14 other brands tested, vibration reduction only reaches from 0% to 15%.  This means that some mounts are not offering any protection at all, and the best competitor's brands are only reducing vibration by 15%.  Even worse, some other brands actually pull apart in mid-flight, destroying valuable aircraft.

• MKIII Type CR  (wt. 3.0 oz.), for use with a Nose Ring, fits the following engines:

YS120-170, OS140, OS160, OS200, OS120AX, SE, II, III, 3M140-170, WEB120-160, ST2300, SAITO 120, 150, 180

• MKIII Type C  (wt. 3.0 oz.) requires no Nose Ring, and fits the following engines:

YS120-170, OS140, OS160, OS200, OS120AX, SE, II, III, 3M140-170, WEB120-160, ST2300, SAITO 120, 150, 180
 

* All other Hyde Mounts reduce damaging high RPM vibration from 60 to 90%.

HYDE MOUNTS ARE PROVEN BETTER