Request for comments....

[n468ac]

Originally Posted by N941WR

While doing a story for KitPlanes some back, I interviewed a guy who made an aluminum hoist for his son. The cool thing was it came apart and would fit in the baggage compartment of his Highlander.

Let me know if you want his contact info.

thanks, the system we are looking into will come apart and fit in the baggage compartment of the RV6, it is fully contained and self powered. So far the total weight looks to be around 36 lbs. We are in the discussions with the manufacture ... our only real hurdle is the system mount on the firewall.

As we work the issues I will post more information for everyone.

[TomVal]

Any chance of posting a photo of the apparatus that will attach to the pins?

I also like Mike's idea.

Regards,

[n468ac]

Originally Posted by TomVal

Any chance of posting a photo of the apparatus that will attach to the pins?

I also like Mike's idea.

Regards,

As soon as I get a good picture I will post it.

[TomVal]

Another idea...temporarily secure the dual pin bracket through the cowl like a tie-down fitting. Have two bolts running thru the vertical bracket and engine cowl passing into a threaded anchor block affixed to the firewall. Then you would only have two bolt holes through the cowl which could be covered with snap in caps for flight. Then you can detach the pin apparatus for flight.

[n468ac]

Originally Posted by TomVal

Another idea...temporarily secure the dual pin bracket through the cowl like a tie-down fitting. Have two bolts running thru the vertical bracket and engine cowl passing into a threaded anchor block affixed to the firewall. Then you would only have two bolt holes through the cowl which could be covered with snap in caps for flight. Then you can detach the pin apparatus for flight.

I really like this idea!!!

[Low Pass]

Originally Posted by n468ac

I really like this idea!!!

This is a better idea. Should be fairly straightforward to do something inside the fuselage/cowling envelope. But to answer your original question, based on the size, shapes and locations of camera mounts I've stuck to my plane, you'll ever know that bracket was there when flying.

[Mike S]

Originally Posted by n468ac

thanks, the system we are looking into will come apart and fit in the baggage compartment of the RV6, it is fully contained and self powered. So far the total weight looks to be around 36 lbs. We are in the discussions with the manufacture ... our only real hurdle is the system mount on the firewall.

As we work the issues I will post more information for everyone.

Been thinking about the loads and stresses that something like this will impart to the airframe. Lots of questions/concerns floating around between my ears

Question-------is there going to be a support leg/outrigger that sits on the ground?? or is the entire load going to be cantilevered off the mount attached to the firewall??

A ground leg to carry the vertical load, and a firewall mount to locate the lift, and stabilize the loads seems like it may be a good way to go.

Are you looking to hoist someone up in front of the wing, then swing them around to above the wing, then finally to the cockpit?? If so, the load vectors go all over the place. How many pounds do you plan to lift?? How far from the mount will the arm go??

I would suggest you have an aeronautical engineer take a look at this, and how to transfer the load to the airframe safely. Both safety for the person being hoisted, and safety for the aircraft.

Good luck, homebuilt/experimental aviation at its best.

[BillL]

Originally Posted by N941WR

While doing a story for KitPlanes some back, I interviewed a guy who made an aluminum hoist for his son. The cool thing was it came apart and would fit in the baggage compartment of his Highlander.

Let me know if you want his contact info.

Is this the one that was behind the Vans tent at OSH?

The base was mounted to the bulkhead behind the seat, and carbon fiber tubes were sections that fit within each other. A skyhook hung out of the top and had an electric hoist. The Aluminum section was a ball bearing pivot.

Yes, Mike, it picked up the passenger from a wheel chair, hooked onto the hooks you see hoisted. It then perfectly fit right over the seat. I did not see it in use, but the owner used it for a paraplegic passenger. It did not look very heavy and he erected it from the baggage compartment in a few minutes with no tools.
That section of the fuse forward is pretty torsionally stiff. Think of the weight just on the steps.

[n468ac]

Question-------is there going to be a support leg/outrigger that sits on the ground?? or is the entire load going to be cantilevered off the mount attached to the firewall??

--> not sure at this point ... but I've too though about this


Are you looking to hoist someone up in front of the wing, then swing them around to above the wing, then finally to the cockpit?? If so, the load vectors go all over the place. How many pounds do you plan to lift?? How far from the mount will the arm go??

--> correct in front of the wing, swing over the wing, then into the cockpit. the mount will be braced across the front of the firewall, maybe in a "<" v connecting to the far side engine mounts. The arm will be between 45 and 54 inches long to allow for the lift from a wheel chair and then lower into the seat. Lifting weight will be 180lbs.

I would suggest you have an aeronautical engineer take a look at this, and how to transfer the load to the airframe safely. Both safety for the person being hoisted, and safety for the aircraft.

--> point taken

[n468ac]

Originally Posted by BillL

Is this the one that was behind the Vans tent at OSH?

The base was mounted to the bulkhead behind the seat, and carbon fiber tubes were sections that fit within each other. A skyhook hung out of the top and had an electric hoist. The Aluminum section was a ball bearing pivot.

Yes, Mike, it picked up the passenger from a wheel chair, hooked onto the hooks you see hoisted. It then perfectly fit right over the seat. I did not see it in use, but the owner used it for a paraplegic passenger. It did not look very heavy and he erected it from the baggage compartment in a few minutes with no tools.
That section of the fuse forward is pretty torsionally stiff. Think of the weight just on the steps.

Ours will be a different design, but his setup got me thinking! I've also talked to that gentleman last week and have gotten more pictures from him.