When you order Zenith amphibian floats you have to chose between operating your retractable wheels either by a hand pump or electric pump. Zenith does not price either pump differently...but if you want a hand pump to back up the electric version its an additional $1000. The hand pump must be mounted between the pilots legs so it can be operated by the pilot. The electric pump can be mounted in the rear and operated with a single switch. Both pumps weigh the same. Do any of the builders have opinions or experience with either of these set ups?

Views: 1010


You need to be a member of Zenith Aircraft Builders and Flyers to add comments!

Join Zenith Aircraft Builders and Flyers

Comment by Bob McDonald on May 16, 2011 at 1:55pm


My friends C-180 Amphib has Wipline floats that were originally "electric operated"... too many problems when mixed with water, very unreliable. That is why they were converted by Wipline to hydraulic operated by a hand operated pump.

Comment by Andre Levesque on May 16, 2011 at 12:54pm

Normand! what about a backup system?? -:)

With an electical problem you may be looking for a lake when your intentions were to land on asphalt and vice versa. Unles that's your backup plan.

I know having two system may be adding weight but better safe than sorry. 

My opinion.

Comment by Normand Lambert on May 16, 2011 at 11:43am

Hi Bob,

Sorry, I misread your post. Actually, I'm not using any kind of pump ! The wheels retract using electricity only. The air/hydraulic system was removed and electric actuators were installed instead of the old retract system. No air/hydraulic leaks here ! Just get 12 volts current to all wheels and let electricity do its thing. Works very well and the retract mecanism design locks the wheel up/down. 


Comment by Bob McDonald on May 16, 2011 at 1:10am
THe CH701 usually has the flap handle located in front of the pilots seat, the hydraulic pump crowds this area.... but the CH750 has electric flaps so this area is clear to mount a hand pump in this location. The electric pump can be mounted behind the pilot seat or some where else.
Comment by Bob McDonald on May 14, 2011 at 10:57am


I assume you miss read the post. I was refering to the pump for hydraulic operation of the wheel retraction or extension....not the bilge pump. Your floats are the earlier version which uses compressed air to operate this same mechanism. You have an "electric" air compressor to charge a tank to operate the gear. A friend of mine has a C180 on amphibian floats.... the big bird has a hand operated hydraulic pump to raise of lower the gear (35 pumps!).

Comment by Andre Levesque on May 13, 2011 at 6:07pm

Are you building the #1450 floats bob?


Comment by Andre Levesque on May 13, 2011 at 6:06pm

My opinion is that I would use both. Maybe a bit more weight but a safty net is required deep in the bush.

They are they same price??  wow

New from Zenith:

Zenith Planes For Sale 

Classified listing for buying or selling your Zenith building or flying related stuff...


Weather Maps

Custom Instrument Panels
for your Zenith

Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, power distribution panel, Approach Fast Stack harnesses, Dynon and Garmin avionics, and more.

Custom Upholstery Kits for your Zenith Aircraft:

Zenith Vinyl Upholstery Kits

Zenith Apparel from EAA:

Zenair Floats

Flying On Your Own Wings:
A Complete Guide to Understanding Light Airplane Design, by Chris Heintz

Builder & Pilot Supplies:

How to videos from HomebuiltHELP.com

Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.

Aircraft Insurance:


West Coast USA:

Pro Builder Assistance:


Transition training:

Golden Eagle Aviation

Pianosa Flying Farm

Aircraft Spruce & Specialty for all your building and pilot supplies!

© 2020   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service