Olarry Posted July 13, 2014 Report Share Posted July 13, 2014 Does anyone know how high the Flight Design CTLS and CTLSi is capable of ? Link to comment Share on other sites More sharing options...
Roger Lee Posted July 13, 2014 Report Share Posted July 13, 2014 18K+. I know for a fact, but that also depends a little on the prop pitch. Link to comment Share on other sites More sharing options...
FastEddieB Posted July 13, 2014 Report Share Posted July 13, 2014 18K+. I know for a fact, but that also depends a little on the prop pitch. Olarry, Service ceiling is more a defined performance parameter - 100 fpm climb at max gross at fwd CG on a standard day. Your question seems to be asking about absolute ceiling, which I think is what Roger is responding to. Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted July 13, 2014 Report Share Posted July 13, 2014 Olarry, Service ceiling is more a defined performance parameter - 100 fpm climb at max gross at fwd CG on a standard day. Your question seems to be asking about absolute ceiling, which I think is what Roger is responding to. When you start talking the flight levels in a CT you are going past absolute ceiling in into the realm of wave soaring. Link to comment Share on other sites More sharing options...
FastEddieB Posted July 13, 2014 Report Share Posted July 13, 2014 True, As a data point, my Sky Arrow was still climbing a bit the one time I took it up to 13,500' - back when I still had my medical. Link to comment Share on other sites More sharing options...
Olarry Posted July 14, 2014 Author Report Share Posted July 14, 2014 I was looking for a ballpark number the aircraft is capable of. Doesn't matter to me what you call it, point is, it will go much higher than we should go without oxygen. Also curious if the fuel injected version would show any difference. Link to comment Share on other sites More sharing options...
FastEddieB Posted July 14, 2014 Report Share Posted July 14, 2014 Doesn't matter to me what you call it... I do not know your level of experience, and don't want to come across as preachy, but... ...in aviation, correct terminology really helps with communication. Imprecise terminology can lead to confusion, and can even be hazardous in some cases. Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted July 14, 2014 Report Share Posted July 14, 2014 Service Ceiling on CTSW is 14,000' The current CTLS and CTLSi should be the same. As they begin getting more power out of the injected engine I expect it to go up a little. Link to comment Share on other sites More sharing options...
Roger Lee Posted July 14, 2014 Report Share Posted July 14, 2014 Rotax states 16K, FD 14K. but rarely is a published POH limit the aircraft's or engine limit. I remember when an Ultralight back in the 80's set a 27+K recorded. I have a friend who just went to 18K (talked to him last night) in a CTSW (has done it a few times) and took approx. 45 min. Climb is slow up there, but it does climb. He has a special purpose for that altitude. Enough said. Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted July 14, 2014 Report Share Posted July 14, 2014 Rotax states 16K... Service ceiling (altitude where max climb is 100fpm at full gross) is airframe dependent. What does Rotax call this 16k limitation? Link to comment Share on other sites More sharing options...
FastEddieB Posted July 14, 2014 Report Share Posted July 14, 2014 Rotax states 16K, FD 14K. but rarely is a published POH limit the aircraft's or engine limit. True. But for others, its best to remember that if its published under "Limitations", its a legal limit. For the non-turbo Cirrus, for example, 17,500' is published as a "Maximum Operating Altitude" under "Limitations". The plane is still climbing well at that altitude, but that's irrelevant - if Cirrus did not certify it for higher, that's a hard limit. And there may be good reasons. For one, unpressurized mags can begin to miss. ROTAX's don't have that issue, but may have others. In any case ROTAX simply may have only tested to 16,000' for whatever reason. Beyond that, a pilot puts on his or her "test pilot hat". Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted July 14, 2014 Report Share Posted July 14, 2014 The CTLS and CTLSi service ceiling at MTOW is density altitude 12,150 (POH 2.9). The absolute ceiling (or max operating altitude) is density altitude 13,780. At service ceiling climb is reduced to 100fpm. At absolute it's zero. Is "(or max operating altitude)" from the POH or did you add it? Absolute ceiling without it would not be a hard limit where max operating altitude ( under limitations heading ) would. At least that would be my interpretation. Link to comment Share on other sites More sharing options...
FastEddieB Posted July 14, 2014 Report Share Posted July 14, 2014 CT, the POH doesn't use the term max operating altitude, that's just another term for the absolute ceiling. No, it's not, as already explained. Link to comment Share on other sites More sharing options...
Olarry Posted July 14, 2014 Author Report Share Posted July 14, 2014 Don't mean to come across as a SA but again I was only looking for a ballpark number as I couldn't find it anywhere. I agree on proper communication and terminology and above all, flying safe. As far as experience, I have a current medical, Instument rating, 4000 plus hours, never an accident or incident and currently fly and own a twin Cessna 340, A Schweizer 300C helicopter, an experimental Aeroprakt A 20 Varlet with a Rotax 912 that I built 10 years ago and recently took delivery of a new Flight Design CTLSi Jubilee edition. Link to comment Share on other sites More sharing options...
Olarry Posted July 14, 2014 Author Report Share Posted July 14, 2014 As a further comment on the new CTLSi, I love it. What a joy to fly and a lot of fun to! Link to comment Share on other sites More sharing options...
Doug G. Posted July 14, 2014 Report Share Posted July 14, 2014 Congrats, and welcome! Where do you hangar? Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted July 14, 2014 Report Share Posted July 14, 2014 Yes. It is. The max operational altitude is the Absolute Ceiling. Absolute ceiling is about performance and max operational altitude might be about a limitation. Link to comment Share on other sites More sharing options...
N89WD Posted July 15, 2014 Report Share Posted July 15, 2014 Roger, when flying through FL180 do you file IFR prior to departure, or do you air file? Link to comment Share on other sites More sharing options...
Roger Lee Posted July 15, 2014 Report Share Posted July 15, 2014 I don't fly up there. I just know this person. Link to comment Share on other sites More sharing options...
N89WD Posted July 15, 2014 Report Share Posted July 15, 2014 Just funnin' with ya Roger.....any drones flying your place with all the border snafu's? Link to comment Share on other sites More sharing options...
Roger Lee Posted July 15, 2014 Report Share Posted July 15, 2014 I believe there are drones at the boarder above 18K' Link to comment Share on other sites More sharing options...
Ian Posted July 15, 2014 Report Share Posted July 15, 2014 Interesting information - does the FAA put any altitude restrictions on aircraft when using MOGAS? Over here in the UK there is a blanket restriction of 6,000' imposed by our Civil Aviation Authority - this document explains why: www.caa.co.uk/docs/33/20120117SSL04.pdf I have happily cruised along at FL90 but of course I'm sure I had some AVGAS in the tanks Link to comment Share on other sites More sharing options...
FastEddieB Posted July 15, 2014 Report Share Posted July 15, 2014 Interesting. My one foray to 13,500' was on MOGAS, to no apparent ill effect. Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted July 15, 2014 Report Share Posted July 15, 2014 Ian, no restriction, we routinely fly our 912s above 10,000' and our 914 above 16,000 using nothing but mogas. Link to comment Share on other sites More sharing options...
CT4ME Posted July 15, 2014 Report Share Posted July 15, 2014 Many of us, especially in the West, do much flying above 10, 11, & 12K. 'Never heard of a problem. Most MoGas here also has Ethanol. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.