Carb Spring brackets

[Dave Holl]

Does it not also depend on whether you fit the air box not?

[Dave S]

Dave H,

That is correct......with the airbox in place the carbs are completely secured and cannot move....no need for the retaining springs.

The attached photo from the front of the plane shows a clamp in the center front of the airbox which affixes the airbox to the engine ring.

The second photo from the side shows (on the far side) the airbox tube attaching to the carb with a rubber hose and clamps.

With the three points attached - the carbs are completely locked in place.

The Airbox is not cheap; but in addition to securing the carbs it permits the engine to develope its rated 100 hp - according to Rotax, without the airbox the engine is rated at 95 HP (according to rotax)

The Airbox also provides switched inlet air for either carb heat or alternate air....mine is currently hooked up as alternate air from under the cowl with a screen in place to keep the foreign matter out of the system.

Sincerely,

Dave S
KF7 trigear
912ULS Warp Drive