Thanks Thanks:  0
Likes Likes:  0
Results 1 to 7 of 7

Thread: I need a new project

  1. #1
    cgoldy's Avatar
    Join Date
    Apr 2009
    Location
    Moogerah Queensland Australia
    Posts
    406
    Post Thanks / Like

    I need a new project

    Can I build my own floats?
    Can they be amphibian?
    Where do I start?
    What would it cost?

    ( experimental back country cub)

  2. #2
    pfjay52's Avatar
    Join Date
    May 2007
    Location
    Port Lincoln, South Australia
    Posts
    148
    Post Thanks / Like
    Col,
    what about long distance running?? Or pushing those cows around the farm?
    seriously, there is a new thread here on 'Montana' float kits, and 'Zenith' sell amphib kits.
    I'll come over in the new Cub and help!

  3. #3
    skywagon8a's Avatar
    Join Date
    Mar 2008
    Location
    SE Mass
    Posts
    9,655
    Post Thanks / Like
    Yes.
    Yes.
    http://montanafloat.com/
    I have two friends who have or had these floats. One bought a factory built set for his Glastar and the other built a kit which we installed on his Super Cub. I have flown both planes and found that the floats perform very well on both types of planes. The water and flight characteristics are excellent, better than some production types (in my opinion). They compare favorably with the EDO 2000 floats. There were some initial nose wheel shimmy problems on both installations which were resolved with a redesign. The factory supplied the altered parts for no charge. Good folks to deal with.

    The nose wheels are too small (in my opinion) for soft fields, beaches, taxing out of the water etc. Most all available amphibs have this same too small nose gear. Larger nose wheels have two drawbacks, more weight forward (where you don't want it) and more difficult to control shimmy.

    If you plan on operating in salt water, building a kit will give you an opportunity to maximize corrosion protection. There is a lot of work involved as you will be building the equivalent of two fuselages.
    N1PA

  4. #4
    cgoldy's Avatar
    Join Date
    Apr 2009
    Location
    Moogerah Queensland Australia
    Posts
    406
    Post Thanks / Like
    Those wheels look awfully small!!!

  5. #5
    skywagon8a's Avatar
    Join Date
    Mar 2008
    Location
    SE Mass
    Posts
    9,655
    Post Thanks / Like
    They all have small nose wheels. Nose wheels need a good footprint since they need to support a lot of weight while taxing in soft ground with high engine power. On soft ground they tend to dig in. Some of the larger amphibs, such as my EDO 3500s, have large 5:00-5 nose wheels. None of the smaller floats have large tire floatation on the nose wheels. Small nose wheels on amphibs act like 6:00-6 main wheels on a Cub landing in the tundra or on soft beaches, very poorly.

    http://www.clamarfloats.com/2200a.htm
    http://www.wipaire.com/myaircraft/pi...100_floats.php
    http://www.zenairfloats.com/1700-1900-2200-2500.html
    N1PA

  6. #6
    cgoldy's Avatar
    Join Date
    Apr 2009
    Location
    Moogerah Queensland Australia
    Posts
    406
    Post Thanks / Like
    Thanks Pete,

    I can't see myself spending that much and not being able to taxi across the padock to the hangar. What was I thinking!

    Phil,

    Anna has just completed back to back marathons! I can't keep up with that so it looks as if I will just have to chase cows for now.

    Colin

  7. #7
    this would be a title NimpoCub's Avatar
    Join Date
    May 2006
    Location
    Nimpo Lake, BC . . . AKA "the Floatplane Capital of BC"
    Posts
    3,024
    Post Thanks / Like
    Here's what a comrade over here did (aeronautical engineer) when building his amphibs from scratch. Says they don't flip when landing gear down! Maybe you can build the mains recess bigger? Some details of floats that don’t flip.

    # 1 – Wheel extension – 5 1/2 inches
    # 2 – Compound spray rails
    # 3 – Fuel tanks out of the wings and into the floats, located forward of the step
    # 4 – Flaps – large slotted flaps with a control lip or fowler-type flaps
    # 5 – Float struts – only long enough to give 30 inches prop clearance to the water
    # 6 – A lightweight three-blade variable pitch propeller with a minimum diameter of 80 inches
    # 7 – A very gentle chine and keel line to give more floatation to the forebody
    # 8 – CG (centre of gravity) located ten inches forward of the step. CL (centre of lift) – a line drawn 12 degrees forward of the step should cross the centre of lift located at 25% from the front of the wing cord. (Angle of incidence) – minus 2 degrees for the floats, plus 2 degrees for the wings, plus 3 degrees for the wings with poor or no flaps.

Similar Threads

  1. On to my next project PA-12
    By MT12 in forum Cafe Supercub
    Replies: 4
    Last Post: 08-27-2012, 09:49 PM
  2. E-2 cub project
    By bogey in forum Cafe Supercub
    Replies: 40
    Last Post: 05-30-2012, 03:31 AM
  3. PA 12 project
    By AKTED in forum Cafe Supercub
    Replies: 0
    Last Post: 05-08-2005, 12:48 AM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •