Those are all good points, but besides Chucky (USA Trains) no one has really given it a go in a production model that resembles a full scale version. After getting into this I can see why, too expensive!
But, here's where I'm at so far.
I had some parts on order and they arrived on Thursday, so here's what going inside.
This is the DeWalt Hammer Drill Motor Block and 3 Stage GearBox and 3 inch shaft what will insert directly into the Kirby Blade.
This mounting kit allows the conversion of a DeWalt series 3-speed transmission and the DeWalt series 18 volt hammer drill motor into a finished, ready-to-use gearmotor with 3 selectable speeds, a 1/2in. keyed output shaft riding in dual ball bearings, and adjustable torque clutch setting using the existing gearbox clutch. Which can be adjusted or changed from an external screw.
Below is the Kirby (original) vacuum metal motor blade that fit's in the early (1954-ish) models of the Kirby vacuum. This version was altered a bit from the original; we removed the 3 inch metal extension from the front of the blade that held the fan assembly to the rubber belt. This is where our 1/2" shaft from the DeWalt motor assembly will fit and be welded to the propeller.
I will probably make 2 - 3 snow throwers (all-ready sold) and then put together a kit that anyone can purchase and install themselves from our instruction manual. This version is going into a FB-1. The kit may only come with the newer version hard plastic Kirby blade?
I'm testing two different kinds of battery-packs, the first is a 18V NC2500SCR NiCd HRD pack from Sanyo. The second is a 18.5V 3000mah IMR26700A HRD Lithium-ion battery-pack with a 60A discharge rate. My guess is that the NiCd pack will perform better in all types of weather temperatures.
I'm also planning on adding an additional FB-1 unit behind the snow thrower; this unit will have two RailLinx 900 10amp throttles, one to power both locomotives and the other to power the DeWalt assembly kit.
Once I have it all assembled I will take pictures and upload a video for everyone to see.
This will also be on display at my booths (RCS America) during the ECLSTS in York, PA this year.
Cordless Renovations, LLC