P85 - A New Aircraft

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Jeffd

Well-Known Member
Joined
Dec 15, 2011
Messages
115
Location
Overland Park, Kansas USA
Started the P85 engine for the first time, just after completing the dual purpose (ground/air) engine run stand wiring and plumbing. (Looks a lot like an airplane:)).

Engine run video can be seen on our all new website:

Home - Altitude Group LLC

As seen on the website we are doing a fundraiser to help move the P85 program along - "P85 First Flight Sponsor". Kind of like our own version of a Kickstarter campaign, with the exception that we are much further along with substantial progress to date, and the "rewards" are assured. This one is a real aircraft. Any interest and consideration is certainly appreciated.

Jeff Ackland
AltitudeGroupLLC.com
 

RJW

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Joined
Feb 9, 2011
Messages
708
Location
Wisconsin and Kansas
Wow Jeff! The motor sounds very good. And your installation is looking excellent. Keep at it man!

We got our shirts! They are very cool and a lot of fun. We are very happy to be first flight sponsors.

So how about a few other HBA P-85 first flight sponsors? Jeff works very hard and is experimenting for us free of charge. His results will help make all our auto conversions successful. And all of his work, from the Legend to the P-85, has been a huge inspiration to thousands of us. So what do you say? Buy a t-shirt from this guy. It’s fun and will help Jeff put another of his beautiful designs into the air. It’s for all of us.

Thanks,
Rob
 

Jeffd

Well-Known Member
Joined
Dec 15, 2011
Messages
115
Location
Overland Park, Kansas USA
Thanks for the nice comments!

Just a handful of flights so far (weather could be more helpful). After looking over the airframe and engine after the first flight all we had to do for the next flight was to add fuel. Even with all the pitch built into the fixed pitch prop, takeoff and climb performance is much better than anticipated. I'll have accurate numbers a bit further into Phase I test ops.

Jeff
 

RJW

Well-Known Member
Joined
Feb 9, 2011
Messages
708
Location
Wisconsin and Kansas
That airplane can’t fly. The prop turns in the wrong direction! ;)

Seriously, thanks for the video. Beautiful airplane. Excellent work.

Rob
 

Jeffd

Well-Known Member
Joined
Dec 15, 2011
Messages
115
Location
Overland Park, Kansas USA
A nice write up by EAA.

Very accurate given all the noise and commotion going on at our parking spot on the flight line. The quote at the end of the article was just a bit off though - I actually said that a less than exotic engine could push the P85 to 300 mph straight and level. The present mildly built engine and re-drive combo looks like it will get us to 285 mph, so it is likely that some more normally aspirated "oomph" will do it.

Jeff Ackland
 

Toobuilder

Well-Known Member
Log Member
Joined
Jan 19, 2010
Messages
4,666
Location
Mojave, Ca
Jeff,

What kind of numbers are you seeing now that you have some cross country time on it? Specifically, fuel burn, speed, climb rate. In other words, how does it compare to the original Radial Rocket or similar "aircraft" engines.

Definately watching this one and wishing you the very best!
 
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