CT4ME Posted January 26, 2018 Report Share Posted January 26, 2018 From Sport Expo 2018.... https://www.avweb.com/avwebflash/news/Sport-Expo-Flight-Design-Reviving-the-C4-230217-1.html Audio podcast 8+ minutes, with Peghiny talking about the status of the company and the C4 project https://www.avweb.com/podcast/Podcast-Flight-Design-General-Aviation-Revives-C4-230218-1.html Link to comment Share on other sites More sharing options...
Cluemeister Posted January 28, 2018 Report Share Posted January 28, 2018 I think the 915 could be a great option for that aircraft. Link to comment Share on other sites More sharing options...
SportFlyer1 Posted January 28, 2018 Report Share Posted January 28, 2018 I do too, albeit I don't really care cuz I'm a sport pilot ... Link to comment Share on other sites More sharing options...
FlyingMonkey Posted January 28, 2018 Report Share Posted January 28, 2018 915 will be lighter weight, butl less power than the original IO-360. So it depends on whether you want more power or better fuel efficiency which one you would want to go with. Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted January 28, 2018 Report Share Posted January 28, 2018 25 minutes ago, FlyingMonkey said: 915 will be lighter weight, butl less power than the original IO-360. So it depends on whether you want more power or better fuel efficiency which one you would want to go with. The 915 is going to deliver best speed at improved economy. The turbo is a game changer, with it in the mix more power <> better top speed Link to comment Share on other sites More sharing options...
FlyingMonkey Posted January 28, 2018 Report Share Posted January 28, 2018 3 hours ago, Ed Cesnalis said: The 915 is going to deliver best speed at improved economy. The turbo is a game changer, with it in the mix more power <> better top speed More power will mean better speed all things equal. But at higher altitudes the turbo engine might make better power than the IO-360. So then is comes down to what altitudes you are operating at. Link to comment Share on other sites More sharing options...
Roger Lee Posted January 28, 2018 Report Share Posted January 28, 2018 The 915 will cost around $38K plus about $10K in accessories for it. Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted January 29, 2018 Report Share Posted January 29, 2018 4 hours ago, FlyingMonkey said: More power will mean better speed all things equal. But at higher altitudes the turbo engine might make better power than the IO-360. So then is comes down to what altitudes you are operating at. Thats kinda the point, things aren't equal and the 915 doesn't have the fall off in power as altitude increases. Even with the IO-360 best speed will be at 7,500' and it will likely win at that altitude if its weight doesn't negate its advantage but above 10,000' and especially above 16,000' the 915 config will find its best speed and advantage and I bet its pushing 200mph. Link to comment Share on other sites More sharing options...
FlyingMonkey Posted January 29, 2018 Report Share Posted January 29, 2018 At 7500ft the 180hp engine making reduced power will still be making more than the 135hp engine making full power. So the cruise speed will be higher at that altitude for the IO-360. Most folks east of the Rockies have no desire to fly at 16000ft when they can get similar speed at 7500ft. So I stand by my statement that it will depend on where you fly which engine suits you best. Plus the $15k+ price premium for 40 less horsepower just to get the turbo is a little tough to swallow. Link to comment Share on other sites More sharing options...
JLang Posted January 29, 2018 Report Share Posted January 29, 2018 12 minutes ago, FlyingMonkey said: Plus the $15k+ price premium for 40 less horsepower just to get the turbo is a little tough to swallow. Compared to the IO-360, the 915 also burns much less fuel, can run on autogas, and is lighter. Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted January 29, 2018 Report Share Posted January 29, 2018 7 hours ago, FlyingMonkey said: At 7500ft the 180hp engine making reduced power will still be making more than the 135hp engine making full power. So the cruise speed will be higher at that altitude for the IO-360. Most folks east of the Rockies have no desire to fly at 16000ft when they can get similar speed at 7500ft. So I stand by my statement that it will depend on where you fly which engine suits you best. Plus the $15k+ price premium for 40 less horsepower just to get the turbo is a little tough to swallow. You don't have to cruise at 16, to get the benefit. Above 10,000' this powerplant will begin to realize the advantage. People will cruise at altitude for the speed and all the more so in a 4 passenger plane. You keep making statements as thought we are only talking power and not power to weight. Link to comment Share on other sites More sharing options...
Tom Baker Posted January 29, 2018 Report Share Posted January 29, 2018 11 hours ago, JLang said: Compared to the IO-360, the 915 also burns much less fuel, can run on autogas, and is lighter. The AF in the Continental IO-360-AF stands for alternate fuel. It is also designed to run on auto fuel. Link to comment Share on other sites More sharing options...
Tom Baker Posted January 29, 2018 Report Share Posted January 29, 2018 One thing to remember is that the design promised to be able to carry a payload equal to its empty weight which was around 1600 pounds. I think 135 HP at sea level would be a little underpowered with that goal in mind. Link to comment Share on other sites More sharing options...
ralarcon Posted January 29, 2018 Report Share Posted January 29, 2018 Talked to Tom over the weekend, apparently the C4 will be out very soon, he also told me you will see Gyrocopters at FD.'s booth , at Sun and Fun. Cheers Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.