• If You Are Having Trouble Logging In with Your Old Username and Password, Please use this Forgot Your Password link to get re-established.
  • Hey! Be sure to login or register!

Olibuilt 's New Cub project

First level the plane to cruise attitude. Your rear cables are too long.The rear cable length controls the ski position in flight.

Glenn


Rear cable are as short as they can be, in flight position, suspension fully extended... Ski down

Just like the AtleeDodge drawing.

But I did it with a smart level, assuming my firewall is perpendicular, door bottom and fuselage fitting parallel.


IMG_3756.jpg



Ski down is the easy part. Ski up do change the angles, but I think I can live with that
 

Attachments

  • IMG_3756.jpg
    IMG_3756.jpg
    63.8 KB · Views: 212
I know it's no help now but when I put my skis on I can get a video of how mine are rigged and work.. you are going to need a tail wheel. Here's what I made and it's retractable
IMG_20200227_085921.jpeg

Sent from my Pixel 2 using SuperCub.Org mobile app
 

Attachments

  • IMG_20200227_085921.jpeg
    IMG_20200227_085921.jpeg
    73.8 KB · Views: 190
What about a sacrificial skid instead of the tail wheel?

I was thinking the same thing. a strip of 1/2" UHMW should do the trick. we cross roads and even drive down them on snowmobiles towing sleighs that weigh half of an entire plane and the UHMW strips on the bottom of the sleigh last's quite a while. with the little weigh on the tail of the ski while wheels are down I wouldn't have any trouble trying a wear pad, even if you had the change them twice a year the stuff is so cheap I wouldn't complain.
 
Still on bushwheels, not much snow around here yet...


I've went with retractable little and heavy wheels.

Travel is now set to maximum, but can easily be adjusted.



IMG_3781.JPG


IMG_3784.JPG

IMG_3783.JPG



Hope it works...
 

Attachments

  • IMG_3784.JPG
    IMG_3784.JPG
    179.5 KB · Views: 186
  • IMG_3783.JPG
    IMG_3783.JPG
    184.9 KB · Views: 169
  • IMG_3781.JPG
    IMG_3781.JPG
    199.7 KB · Views: 191
Hi Olie

I'm a good friend of Dan Poirier, i'm buying his old Citabria wich is all apart, i'm planning to rebuild it in the experimental category with enough mods to comply
with the 51% rules.

I have a question for you: Did you loose any top speed with the installation of the slats on your cub? I'm looking into that for my rebuilt.

Franky
 
another question for Oli, is that a home made fuel belly pod? do you have another thread detailing it out of curiosity?
 
another question for Oli, is that a home made fuel belly pod? do you have another thread detailing it out of curiosity?

No. Only Dacron fabric and Velcro speed fairings.

Gear leg fairings started to tear, right behind the rear gear leg tube, so I removed them for future reinforcement...


But the belly cargo thing has help up good and very helpfull.



IMG_0409.jpg


IMG_0408.jpg

IMG_0410.jpg

IMG_0451.jpg
 

Attachments

  • IMG_0409.jpg
    IMG_0409.jpg
    203.8 KB · Views: 200
  • IMG_0408.jpg
    IMG_0408.jpg
    218.9 KB · Views: 211
  • IMG_0410.jpg
    IMG_0410.jpg
    58 KB · Views: 185
  • IMG_0451.jpg
    IMG_0451.jpg
    80 KB · Views: 207
Fluidyne Fli-Lite 3000 skis are working good. 12" stroke, 450lbs force, IP69M Model PA-10 Electric linear actuator that I bought from progressiveautomations are doing the job so far.

I even went to a local airport to land on bare asphalt, wheels down.... It was a first time for me on small wheels with this Cub.

Actuators are strong enough to push the wheel plates under the wheels on flat ground.



IMG_3885.jpg

IMG_3897.jpg

136699092_10157370143935443_7774212686433055054_o copie.jpg

137085877_108366521210255_2395226394923963325_o copie.jpg
 

Attachments

  • IMG_3885.jpg
    IMG_3885.jpg
    105.9 KB · Views: 198
  • IMG_3897.jpg
    IMG_3897.jpg
    246.4 KB · Views: 198
  • 136699092_10157370143935443_7774212686433055054_o copie.jpg
    136699092_10157370143935443_7774212686433055054_o copie.jpg
    53.5 KB · Views: 239
  • 137085877_108366521210255_2395226394923963325_o copie.jpg
    137085877_108366521210255_2395226394923963325_o copie.jpg
    155.3 KB · Views: 193
They are fairly cheap, at least the somewhat similar ones on my Datums, and I like to keep a spare just in case. I had a bit of a learning curve before I learned NOT to taxi up to a berm and then make the actuators have to haul the plane uphill in effect. Stupidly holding brake when using them is another thing I've learned to avoid! Level surface, no problem. I've tested them every way possible I think, on purpose and accidentally, and the concept in general is viable v. hydraulic retracts., good to see Oli's use of them.
 
Last edited:
Datum actuators are $500 each, American, at least for the 2000’s. Progressive Automations PA-10 that Oli bought are $179. The PA-17, rated at 800 lbs is $305. The PA’s can be retrofitted easily to Datums with a ruler and a Tig welder and you don’t have to deal with Jean Marc
 
Yes, source them yourself and modify if necessary, works for me also. I don't have a problem with Jean at all, it's the frigging border BS I don't like.
 
Decide to go with the same brake setup of my white cub. They work perfectly with double puck calipers and 35''. Strong enough to lock the wheels but weak enough to land with the brakes on for short landings.

Wagaero homebuilt brake pedal and master kit. Speed holes to save more than half a pound....


View attachment 5484


They fit right over the brake reinforcing channel.

View attachment 5485

Just a heads up for Oli (and everyone else enthralled with this build thread):

I took your lead and started converting my brake system over so this exact kit. Wag Aero is still producing the mounting brackets, however they no longer have any stock of the pedals they used for decades. I was able to purchase the last right pedal to use as inspiration to start drawing my own system. This is just a heads up for anyone in the future who goes down this road (like I did).

Wag Kit like yours:

ieGpvcpxwxHDg5SvdoHnNdQERXBWqRcyyKQAJuSo8nVQnbgEv6IiEC3aPoeEonC2Gqdz_qLsZ3QGyBgLHQN4jlRZAXhN_Au_.jpg

New pedal design:

cc_heelbrakes_pedal.jpg

I incorporated a parking brake right into the base bracket so I don't need an external bar to maintain pressure on the pedals:

cc_heelbrakes_render.png

CNC'd ready for master cylinder installation (and 3D print used during test fitment):

cc_heel_brakes_assembly.jpg

This thread and your creativity has given me so many ideas for my own build. I really appreciate you continuing to post up all of your fabrications.
 

Attachments

  • ieGpvcpxwxHDg5SvdoHnNdQERXBWqRcyyKQAJuSo8nVQnbgEv6IiEC3aPoeEonC2Gqdz_qLsZ3QGyBgLHQN4jlRZAXhN_Au_.jpg
    ieGpvcpxwxHDg5SvdoHnNdQERXBWqRcyyKQAJuSo8nVQnbgEv6IiEC3aPoeEonC2Gqdz_qLsZ3QGyBgLHQN4jlRZAXhN_Au_.jpg
    184.9 KB · Views: 148
  • cc_heelbrakes_render.png
    cc_heelbrakes_render.png
    560.5 KB · Views: 143
  • cc_heelbrakes_pedal.jpg
    cc_heelbrakes_pedal.jpg
    290.1 KB · Views: 124
  • cc_heel_brakes_assembly.jpg
    cc_heel_brakes_assembly.jpg
    383.1 KB · Views: 152
Last edited:
These are front seat?

Yes.

Oli had the original idea which sparked me to rethink (then sh!tcan) my entire existing setup in favor of something much simpler and lighter. Of course, we are experimental so we can make these changes. My new front floorboard is a work in progress, but will be close to this:

NewFloorboard.png
 

Attachments

  • NewFloorboard.png
    NewFloorboard.png
    607.9 KB · Views: 174
Retractable skis are working perfectly. They make concrete hangar floor to snow operations easy and friendly. Yes they are heavy, but I cannot feel the added weight. In fact, longer and wider than my previous skis, I feel they float more.

Actuators are strong enough to ''push the ski plate'' under the tire on hard and flat ground. Have not yet tried to lift the plane with it....



 
''Porter style'' suspension is now removed. Acme Pros 9''x3'' may come one day.

The ''Porter style'' was incredibly soft and absorbing, and I hope I wont be disappointed with a more conventional setup...
But the Porter style suspension was very unstable in crosswinds and side hill issues were a real concern for my changing mission.

The main official reason the suspension was removed was because I was afraid to break my knees on the cross tube in an accident scenario.
My mission has also changed to a camping and travel plane, so a full size belly pod addition will be very handy.



You can see the 1"X.0625" cross tube and gussets: (now removed)

Événements - 12986 copie.jpg



86" ground adjustable Sterna Propeller is great. My 86x36 Catto too.. Sterna is faster but more fragile to rocks and sand.
Sterna will go back on the plane soon.

IMG_4251.jpg









I found a used CarbonConcept cargo pod locally for a very good price. I installed it on the plane last week. I need to apply a clear coat to make it shine again.


IMG_5491.jpg

IMG_5599.jpg

IMG_5615.jpg
 

Attachments

  • Événements - 12986 copie.jpg
    Événements - 12986 copie.jpg
    81.9 KB · Views: 965
  • IMG_4251.jpg
    IMG_4251.jpg
    132.8 KB · Views: 980
  • IMG_5599.jpg
    IMG_5599.jpg
    125.4 KB · Views: 945
  • IMG_5491.jpg
    IMG_5491.jpg
    64.6 KB · Views: 944
  • IMG_5615.jpg
    IMG_5615.jpg
    102.1 KB · Views: 965
Last edited:
Back
Top