Landing gear fairings

A place to relax and discuss flying topics.

Moderators: GAHorn, Karl Towle, Bruce Fenstermacher

User avatar
170C
Posts: 3182
Joined: Tue May 06, 2003 11:59 am

Fairings

Post by 170C »

I have to agree with blueldr, maybe with a Continental IO-360 210hp. I think the 135/140/145 "might" be achievable. We have some members with that conversion (one in OKC & one in the Chicago area) maybe others too that could probably speak with some authority on this subject. A Lyc O-360---I don't think so. A lot of folks who have spent lots of their $$ to gain speed won't admit if they didn't gain any or very little speed. Now certainly more hp will deliver "some" additional speed, but the engineers can explain the formula for how much. Rate of climb, yea, it will improve with more hp, especially w/ a cs prop. I sure haven't seen many of those 145 mph 170's. I might believe it if I were in there with a good gps to verify it in a 4 way speed run. Just MHO!
OLE POKEY
170C
Director:
2012-2018
User avatar
Plummit
Posts: 100
Joined: Sun Dec 03, 2006 2:00 am

Post by Plummit »

I'm sure the GPS will tell the truth, but the A/C I'm looking at is _claimed_ to go 140+GPS MPH (read: over the ground) at 2450 RPM and 20 inches with an 0-360 @7000 feet. Obviously I would have reservations if the claimed speeds aren't there, but those are respectable numbers if true. You don't think I'm having my leg pulled do you? 8O :wink:

regards

~Marc
4stripes
Posts: 143
Joined: Fri Sep 17, 2004 10:02 am

speed

Post by 4stripes »

Just remember the formula that you have to square the HP to double your speed (FACT).
You may pass everything but the next fuel stop!
Cheers Eric
Image
Image
User avatar
johneeb
Posts: 1542
Joined: Thu Jun 26, 2003 2:44 am

Re: Fairings

Post by johneeb »

170C wrote:I have to agree with blueldr, maybe with a Continental IO-360 210hp. I think the 135/140/145 "might" be achievable. We have some members with that conversion (one in OKC & one in the Chicago area) maybe others too that could probably speak with some authority on this subject. A Lyc O-360---I don't think so. A lot of folks who have spent lots of their $$ to gain speed won't admit if they didn't gain any or very little speed. Now certainly more hp will deliver "some" additional speed, but the engineers can explain the formula for how much. Rate of climb, yea, it will improve with more hp, especially w/ a cs prop. I sure haven't seen many of those 145 mph 170's. I might believe it if I were in there with a good gps to verify it in a 4 way speed run. Just MHO!
Frank,
Sense you asked the man who has one, here is my spin on Cont. IO360 and speed. Indicating 140mph takes "almost", as Mr Scott used to say all she's got. In the picture below the engine monitor says the engine was developing 74% of rated power to indicate 140mph with a very slight climb. Must have been a lite tail wind as the 127kts displayed in the lower right corner of the lower GPS computes to 146mph ground speed. The fuel burn to achieve this speed is expensive around 10.8gph.

Image
John E. Barrett
aka. Johneb

Sent from my "Cray Super Computer"
4stripes
Posts: 143
Joined: Fri Sep 17, 2004 10:02 am

Post by 4stripes »

That throttle is pretty much against the stop!
I like those leather trimmed wheels. Are you holding a lot of aileron, or are they upside-down?

All kidding aside, that upgraded panel looks sharp!
Cheers Eric
Image
Image
User avatar
Plummit
Posts: 100
Joined: Sun Dec 03, 2006 2:00 am

Re: Fairings

Post by Plummit »

My gawd John, what a panel!!! And the 170 it's mounted to isn't too shabby either.... :-)

regards

~Marc

johneeb wrote:
170C wrote:I have to agree with blueldr, maybe with a Continental IO-360 210hp. I think the 135/140/145 "might" be achievable. We have some members with that conversion (one in OKC & one in the Chicago area) maybe others too that could probably speak with some authority on this subject. A Lyc O-360---I don't think so. A lot of folks who have spent lots of their $$ to gain speed won't admit if they didn't gain any or very little speed. Now certainly more hp will deliver "some" additional speed, but the engineers can explain the formula for how much. Rate of climb, yea, it will improve with more hp, especially w/ a cs prop. I sure haven't seen many of those 145 mph 170's. I might believe it if I were in there with a good gps to verify it in a 4 way speed run. Just MHO!
Frank,
Sense you asked the man who has one, here is my spin on Cont. IO360 and speed. Indicating 140mph takes "almost", as Mr Scott used to say all she's got. In the picture below the engine monitor says the engine was developing 74% of rated power to indicate 140mph with a very slight climb. Must have been a lite tail wind as the 127kts displayed in the lower right corner of the lower GPS computes to 146mph ground speed. The fuel burn to achieve this speed is expensive around 10.8gph.

Image
User avatar
170C
Posts: 3182
Joined: Tue May 06, 2003 11:59 am

145 mph 170

Post by 170C »

John, thanks for your input. Now we need Jim in Edmond, OK to throw in his data.

BTW folks, as pretty as that panel is on John's 170, the rest of the interior is just as nice and that is equalled or bettered by the exterior. Really a nice plane.

John, how about a exterior photo of it on this forum. I have several I took at Petit Jean, but haven't learned how to scan them.
OLE POKEY
170C
Director:
2012-2018
User avatar
johneeb
Posts: 1542
Joined: Thu Jun 26, 2003 2:44 am

Post by johneeb »

Frank,
Thanks for the kind words. I do nothave any real good pictures of the exterior and am to modist to post them anyway. :wink:
John E. Barrett
aka. Johneb

Sent from my "Cray Super Computer"
Post Reply
Cessna® is a registered trademark of Textron Aviation, Inc. The International Cessna® 170 Association is an independent owners/operators association dedicated to C170 aircraft and early O-300-powered C172s. We are not affiliated with Cessna® or Textron Aviation, Inc. in any way.