Outdoors
Sponsored by

Unofficial Record: 37,000+ feet in a 160 horse Carbon Cub

1,967 Views | 8 Replies | Last: 14 days ago by Gunny456
eric76
How long do you want to ignore this user?
AG
https://www.aopa.org/news-and-media/all-news/2025/october/31/carbon-cub-ul-climbs-above-altitude-record
This is amazing:



Indicated airspeed: 61 kinots
True airspeed: 113 knots
Groundspeed: 127 knots

From https://cubcrafters.com/carboncub

Quote:

The Carbon Cub has redefined expectations for backcountry aircraft. It has taken the fundamentally superior design of the Piper Super Cub and reinvented it using 21st Century materials and computer-aided design. Superior engineering results in the Carbon Cub having 50% fewer parts, and weighing more than 300 pounds less, than a similarly equipped Super Cub. It can take off and land in patches that you thought were accessible only to helicopters and hikers, all while being able to take the abuse of backcountry exploration.

PERFORMANCE

All variants of the Carbon Cub exhibit unmatched power to weight ratios. The Carbon Cub has no equal in takeoff and landing performance. On an average day the Carbon Cub will climb out at 2,100 feet per minute at sea level and pass through 10,000 still climbing at a staggering rate.

The power is ideally paired with the airplane's nimble handling and slow speed manners. Carbon Cub FX and EX are further benefitted by our new G-Series flaps and ailerons. The EX-3 and FX-3, with even more power and a constant-speed prop, deliver the highest cruise speed and efficiency available in the Carbon Cub family. The Carbon Cub UL features the 160 HP turbocharged Rotax 916iS with multi-fuel technology (MOGAS & AVGAS).


From https://www.aopa.org/news-and-media/all-news/2025/october/31/carbon-cub-ul-climbs-above-altitude-record

Quote:

The turbocharged, 160-horsepower Rotax 916iS engine was operating at 100 percent power and turning 5,826 rpm at 23.2 inches of manifold pressure when the airplane topped out at a pressure altitude of 35,720 feet. Its indicated airspeed was 61 knots (113 knots true airspeed) at the top of the climb.
The Carbon Cub might have gone even higher without the relatively heavy and dr**** 29-inch Alaska Bushwheel main tires, or a cooler temperature. The standard temperature at 37,000 feet is minus 56 degrees Fahrenheit, about 5 degrees colder than the Carbon Cub recorded at its apex.

eric76
How long do you want to ignore this user?
AG
Control panel at 35,720 feet:


eric76
How long do you want to ignore this user?
AG
Here's a link to the flight on FlightAware:

https://www.flightaware.com/live/flight/N14UL/history/20251028/1700Z/KSBP/KSBP
average_joker
How long do you want to ignore this user?
AG
1. That's kinda cool.
2. I don't care how high it can fly. $430k for a two-seater is ridiculous.
BPBroadhind
How long do you want to ignore this user?
AG
And here I thought the Christen Husky was pretty cool. This is pretty amazing stuff for a Super Cub. Wow.

And I wonder what clothing the pilot was wearing at -56. Ha.
Van Buren Boy
How long do you want to ignore this user?
AG
BPBroadhind said:

And here I thought the Christen Husky was pretty cool. This is pretty amazing stuff for a Super Cub. Wow.

And I wonder what clothing the pilot was wearing at -56. Ha.

techno-ag
How long do you want to ignore this user?
AG
Should be able to handle Alaskan flights no problem.
The left cannot kill the Spirit of Charlie Kirk.
Centerpole90
How long do you want to ignore this user?
AG
Great video I watched from the team who did it. Lot's of technical info on the human/medial considerations as well as the mechanical stuff and logistics.

Gunny456
How long do you want to ignore this user?
AG
BRP (Bombardier Recreational Products) owns Rotax and Can Am recreational vehicles and Sea Doo PWC's. They were also the company that caused Evinrude Outboards demise. Rotax has been building Ultra-Light aircraft engines for many years. They also build all the engines in Can Ams recreational ATV's and UTV's.
I attended a STOL competition event and a few of the guys had the Carbon Cubs. The one fact about the 160 HP Rotax used on them is that it's operating RPM is 5800-6000 RPM to develop the HP. This is very high when compared to a Super Cubs O-320 Lycoming producing 150HP at 2700-2800 RPM.
The Carbon Cubs Rotax is turning RPM's equal to what most larger HP Outboards turn.
It also has a radiator for cooling besides air cooling the cylinders.
Refresh
Page 1 of 1
 
×
subscribe Verify your student status
See Subscription Benefits
Trial only available to users who have never subscribed or participated in a previous trial.