Hill Helicopters HX50

Joined: Nov 2018
Posts: 240
Likes: 50
From: San Diego, CA
For what it's worth, Magni is an Italian gyroplane manufacturer that does have a factory build-assist program that is recognized by the FAA, even though the factory is in Italy. US buyers fly there, build their gyro in Italy, and then it is shipped to the US. So it is obviously possible for the FAA to approve that outside the US since they have already done so.
Joined: Apr 2025
Posts: 6
Likes: 3
From: United States
For what it's worth, Magni is an Italian gyroplane manufacturer that does have a factory build-assist program that is recognized by the FAA, even though the factory is in Italy. US buyers fly there, build their gyro in Italy, and then it is shipped to the US. So it is obviously possible for the FAA to approve that outside the US since they have already done so.
Joined: Apr 2009
Aviation Qualifications: Non-Aircrew
Posts: 1,581
Likes: 673
From: DM33

Joined: Oct 2006
Aviation Qualifications: A&P
Posts: 1,348
Likes: 271
From: USA
Does Hill have a US dealer?
Joined: Apr 2025
Posts: 6
Likes: 3
From: United States
I stopped briefly with the Hummingbird program back in 1996 to concentrate on building a helicopter for Lockheed Martin and development and FAA certification of the Whisper Jet for Papillon Grand Canyon Helicopters.
Yes, we are currently working on a hybrid with Verdego, and a Deltahawk diesel install. Battery technology is not there for a practical electric powerplant. A turbine has already been installed.
I recently bought the Type Certificate (CAR6) from Sikorsky so I will be introducing the Hummingbird to the commercial market with big changes.
Back to my original question.
To get the HX50 kit evaluated by the FAA would require a dealer or distributor in the US to have a kit on hand, with build manuals and packing list of the kit. This is how conformity is shown. This is the process to show eligibilty to the 51% rule. The FAA evaluation is not required, however if not, the builder must prove that it meets the 51% rule. The check list must be used.
Some are saying it's not sold as a kit.
To be eligible for 21.191(g) it has to be plans built or kit built. From there you can get commercial assistance,factory assistance in Hills case. Even with the FAA bill of sale the word aircraft is "X"'d out and "Kit" wrote in.
Customers are placing orders with the understanding they will show up for a couple of weeks and build a HX50. It appears there currently is no build program in place that is eligible meeting the 51% rule. I hope I'm wrong.
A kit helicopter competitor RotorX (previously Rotorway) recently took customer orders for three years and never delivered anything. Then they shut the doors. This hurt my business indirectly. I don't want to see this again. Again, I wish Hill all the support, however, please make sure it is being done under the spirit of the rule.
Yes, we are currently working on a hybrid with Verdego, and a Deltahawk diesel install. Battery technology is not there for a practical electric powerplant. A turbine has already been installed.
I recently bought the Type Certificate (CAR6) from Sikorsky so I will be introducing the Hummingbird to the commercial market with big changes.
Back to my original question.
To get the HX50 kit evaluated by the FAA would require a dealer or distributor in the US to have a kit on hand, with build manuals and packing list of the kit. This is how conformity is shown. This is the process to show eligibilty to the 51% rule. The FAA evaluation is not required, however if not, the builder must prove that it meets the 51% rule. The check list must be used.
Some are saying it's not sold as a kit.
To be eligible for 21.191(g) it has to be plans built or kit built. From there you can get commercial assistance,factory assistance in Hills case. Even with the FAA bill of sale the word aircraft is "X"'d out and "Kit" wrote in.
Customers are placing orders with the understanding they will show up for a couple of weeks and build a HX50. It appears there currently is no build program in place that is eligible meeting the 51% rule. I hope I'm wrong.
A kit helicopter competitor RotorX (previously Rotorway) recently took customer orders for three years and never delivered anything. Then they shut the doors. This hurt my business indirectly. I don't want to see this again. Again, I wish Hill all the support, however, please make sure it is being done under the spirit of the rule.
Last edited by T28B; 24th May 2025 at 12:48. Reason: added white space for easier reading of a very informative post

Joined: Nov 2018
Posts: 240
Likes: 50
From: San Diego, CA
When I bought (and built) my gyroplane with factory assist, there was no kit. Later on, a dealer in Texas wanted to sell kits, so the factory eventually developed one, but it took time and effort - they had to write detailed instructions, make sure it counted as 51%, deal with packaging, etc. They apparently hadn't done that for the factory build-assist gyros. Maybe their local FSDO was more lenient...? They also counted as light sport, so maybe the FAA just doesn't scrutinize that as much.
Still, I can't imagine Hill is doing this without ensuring he can sell the HX50 because otherwise it's all pointless. (Well ultimately certification is the goal but that takes forever.)
Still, I can't imagine Hill is doing this without ensuring he can sell the HX50 because otherwise it's all pointless. (Well ultimately certification is the goal but that takes forever.)

Joined: Apr 2000
Aviation Qualifications: ATP+Mil
Posts: 10,959
Likes: 1,814
From: EGDC

Joined: Sep 2022
Posts: 139
Likes: 79
From: EGBO
Joined: Apr 2009
Aviation Qualifications: Non-Aircrew
Posts: 1,581
Likes: 673
From: DM33
The FAA documents include form 8050-88 which is an Affidavit of Ownership and form field "Class" was entered as "Airplane". For a Hill factory assist build "Rotorcraft" would be entered in his field.
The form also requires an affirmation of the construction method -

Note that no bill of sale was required.
https://www.faa.gov/forms/index.cfm/...mentid/1019931
Last edited by EXDAC; 25th May 2025 at 14:56.

Joined: Nov 2010
Posts: 880
Likes: 225
From: Australia
Joined: Apr 2009
Aviation Qualifications: Non-Aircrew
Posts: 1,581
Likes: 673
From: DM33
A bill of sale was not required for, and was not applicable to, the initial ownership and registration of my plans built aircraft. (This despite the misleading post saying a Bill of Sale would need to be altered to specify kit.)
Joined: Jul 2024
Posts: 35
Likes: 22
From: South Africa
Affordable: HX50's Approach to Helicopter Ownership (latest video)
Must be the most delusional video ever made.- HX50 has 0h of operation yet he guarantees the engine for 5k hours.
- Hill will sell HX50 based on what you can pay, not based on supply and demand.
- On top of that he now plans to provide Hill insurance on HX50.
This guy is an even bigger con artist that Elizabeth Holmes.
I am currently trying to figure out how to set up a betting pool on HX50.

Joined: Feb 2004
Posts: 603
Likes: 65
From: South of UK
Affordable: HX50's Approach to Helicopter Ownership (latest video)
Must be the most delusional video ever made.- HX50 has 0h of operation yet he guarantees the engine for 5k hours.
- Hill will sell HX50 based on what you can pay, not based on supply and demand.
- On top of that he now plans to provide Hill insurance on HX50.
This guy is an even bigger con artist that Elizabeth Holmes.
I am currently trying to figure out how to set up a betting pool on HX50.
More holes than a Swiss cheese.











