10 Dec 2019, 01:40 [ UTC - 5; DST ]
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Post subject: Re: Otto Aviation Celera 500L Flew This Week  Posted: 14 Nov 2019, 16:10 |
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Joined: 11/03/08
Posts: 9547
Post Likes: +12328
Location: Stoke-on-Trent, UK
Aircraft: in storage
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Username Protected wrote: In the case of the SMA the turbo is turning in the ballpark of 16,000 RPM... I highly doubt that. I haven't seen any of their mapping but generally speaking something that size should be spinning maybe ~7X that fast
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Post subject: Re: Otto Aviation Celera 500L Flew This Week Posted: 14 Nov 2019, 18:57 |
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Joined: 02/20/18
Posts: 65
Post Likes: +13
Company: Paramus Flying Club
Location: KCDW
Aircraft: C182 PA18 B75N Z242
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Username Protected wrote: In the case of the SMA the turbo is turning in the ballpark of 16,000 RPM... I highly doubt that. I haven't seen any of their mapping but generally speaking something that size should be spinning maybe ~7X that fast
You are correct sir, 146,000 RPM is the published limit for the gen 1 engine. So ~9x what I said.
https://www.google.com/url?sa=t&source= ... iyZdDGkmFz
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Post subject: Re: Otto Aviation Celera 500L Flew This Week Posted: 14 Nov 2019, 20:30 |
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Joined: 05/01/14
Posts: 284
Post Likes: +572
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Username Protected wrote: Grob G850 set the altitude record for pistons at 60000ft, so it's not impossible to imagine a scenario where a diesel engine could reach the same altitudes. I believe the Grob used a piston turbine hybrid engine. The props were also huge making a high wing configuration all but necessary.
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Post subject: Re: Otto Aviation Celera 500L Flew This Week Posted: 15 Nov 2019, 11:50 |
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Joined: 11/08/12
Posts: 11234
Post Likes: +4000
Location: Jackson, MS (KHKS)
Aircraft: 1959 Travel Air
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Username Protected wrote: Grob G850 set the altitude record for pistons at 60000ft, so it's not impossible to imagine a scenario where a diesel engine could reach the same altitudes. No but it sure makes regular ops at FL650 a stretch.
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Post subject: Re: Otto Aviation Celera 500L Flew This Week Posted: 15 Nov 2019, 13:47 |
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Joined: 11/20/14
Posts: 3843
Post Likes: +2179
Aircraft: V35
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I liked the earlier comment about autonomous freight ops, point to point. Seems like a good mission for this type of airplane.
Take the human out of the equation, and go as high as you want. Being slower than an airliner and taking a hour to climb are less of a problem.
Maybe a human pilot in a pressure suit for proof of concept, then take the human out when the tech and regulators are ready.
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Post subject: Re: Otto Aviation Celera 500L Flew This Week Posted: 27 Nov 2019, 10:15 |
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Joined: 01/31/12
Posts: 1167
Post Likes: +1358
Company: Aerial survey (not my cessna)
Location: France/Germany
Aircraft: Cessna T-303
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Username Protected wrote: Grob G850 set the altitude record for pistons at 60000ft, so it's not impossible to imagine a scenario where a diesel engine could reach the same altitudes. No but it sure makes regular ops at FL650 a stretch.
Which makes Concorde an even more incredible bird/ops.
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Post subject: Re: Otto Aviation Celera 500L Flew This Week Posted: 27 Nov 2019, 11:14 |
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Joined: 06/24/18
Posts: 10
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Aircraft: bonanza
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Username Protected wrote: I was at KVCV last night.
I asked the ramp guys if they see the OTTO flying much.
They said yes it's been flying regularly. Surprising that there's no video of it flying yet...
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Post subject: Re: Otto Aviation Celera 500L Flew This Week Posted: 06 Dec 2019, 22:38 |
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Joined: 02/08/19
Posts: 19
Post Likes: +11
Aircraft: C-172
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I don't know how much of the "paper airplane" is actually making it into hardware, but they have at least 7 US patents on various concepts..... Generally described in the specification, here: https://patents.google.com/patent/US953 ... o+AviationSerial numbers for the group: Child Continuity Data 14/154,321 filed on 01-14-2014 which is Patented claims the benefit of 61/753,215 14/154,353 filed on 01-14-2014 which is Patented claims the benefit of 61/753,215 14/154,415 filed on 01-14-2014 which is Patented claims the benefit of 61/753,215 14/154,469 filed on 01-14-2014 which is Patented claims the benefit of 61/753,215 14/154,661 filed on 01-14-2014 which is Patented claims the benefit of 61/753,215 14/154,702 filed on 01-14-2014 which is Patented claims the benefit of 61/753,215 14/154,756 filed on 01-14-2014 which is Patented claims the benefit of 61/753,215 - Reams
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