- #1495 of 1583
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Re: Drop in gas milage [carysbluesky]
by johndix60
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Jan 29, 2008 (6:09 am)
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Replying to: carysbluesky (Jan 28, 2008 8:23 pm)
Pilots will also comment that the aerodynamic drag on a vehicle is, among other factors a function of the square of the vehicle velocity and the density of the air. Colder air equals higher density air and hence higher drag for any given speed.
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- #1496 of 1583
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The Square Root of Drag
by carysbluesky
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Jan 29, 2008 (11:13 am)
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You must be a CFI; and, you put it well. Keep the Blue side up...unless you're part of an airshow. 
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- #1497 of 1583
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Re: The Square Root of Drag [carysbluesky]
by johndix60
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Jan 29, 2008 (6:28 pm)
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Replying to: carysbluesky (Jan 29, 2008 11:13 am)
CFI-yes, and an engineering test pilot at a major helicopter company for 39 years. We used to say: " keep the greasy side down" !!
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- #1498 of 1583
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Re: The Square Root of Drag [johndix60]
by carysbluesky
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Jan 29, 2008 (6:41 pm)
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Replying to: johndix60 (Jan 29, 2008 6:28 pm)
Started in the OH-23 myself (Ft. Wolters 69-41) Retired in 99 and familiar with greasing the skids, especially when flying a loaded UH-1C. Just retired from the FAA myself w/30 years.
In any case, I believe our FEH driver now knows all about why his fuel consumption goes up in cold Wx. Not even mentioning the additional drag if he doesn't remove the snow prior to departure. Take care. 
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- #1499 of 1583
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Re: The Square Root of Drag [carysbluesky]
by supercub43
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Jan 29, 2008 (7:57 pm)
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Replying to: carysbluesky (Jan 29, 2008 6:41 pm)
That's what I figured, but I didn't think it would make that much difference, what with all the computers/electronic on the newer cars, which I haven't seen to many on cont or lycs with........just plain ole Mags and carbs or maybe fuel injected. Oh ya, I've only been a CFII, MEI, BGI, AGI, ATP, SEL, MEL, SES......and 135 Chief Pilot for about 33 years. I do appreciate the input. Will be interesting when the warmer weather comes around to see if the mpg returns to the 36 range. Thanks again
PS........check my name out and that well give you a hint of the airplane I own too.
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- #1500 of 1583
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Re: FEH in the snow. [mecheng1]
by wisill
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Mar 08, 2008 (6:22 pm)
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Replying to: mecheng1 (Dec 04, 2007 7:56 am)
The 05 thru 07 AWD Hybrid models do not have a light on the dash that indicates power going to the rear wheels.
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- #1501 of 1583
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Re: Hybrid revs. [mschmal]
by wisill
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Mar 08, 2008 (6:29 pm)
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Replying to: mschmal (Dec 06, 2007 6:45 am)
Mark, the hybrid engine does not "rev" up to heat the cat converter. The cat converter quickly heats up to normal temperature within 30 seconds. I have a Scangauge II unit that demonstrates this.
The hybrid engine does not "rev" up to heat the hybrid battery. There is a heating element inside the hybrid battery pack.
The hybrid engine does not "rev" up while the vehicle is undergoing braking regeneration unless it's state of charge (SoC) is full and this is a topic by itself.
The "rev-up" of the engine is due to the electronic continous variable transmission (eCVT). Hybrid owners learn to "fake shift" (temporary lessen pressure on the gas pedal) to lower the RPMs and to improve fuel efficiency.
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- #1502 of 1583
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Re: order andabot wait? [keegs54]
by wisill
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Mar 08, 2008 (6:31 pm)
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Replying to: keegs54 (Dec 26, 2007 1:54 pm)
The 2008 Ford Escape Hybrid is sold out. You can start ordering the 2009 models with the new engine and other enhancements sometime in April 2008.
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- #1503 of 1583
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Re: Electric Assist [carysbluesky]
by wisill
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Mar 08, 2008 (6:37 pm)
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Replying to: carysbluesky (Dec 21, 2007 7:22 am)
Baloney. You need to read some more information on how hybrid owners can hypermile and stay with the flow of traffic. 
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- #1504 of 1583
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Re: Towing [mschmal]
by wisill
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Mar 08, 2008 (6:45 pm)
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Replying to: mschmal (Aug 18, 2007 5:54 am)
I am aware of an individual who towed a 14 foot Shasta trailer from Kansas City to Washington D.C. with his Escape Hybrid. This is several hundred pounds more than the 1000lb limit. This drive included the numerous long hills in West Virginia. There is a thought this 1000lb limit exists because there is no reverse in the transmission. Yes, the power to move rearward does not orginiate from the internal combustion engine but the generator and hybrid battery pack. There is a cold weather testing research area West of Denver and Escape Hybrids have been seen going up the Rockie Mountains with trailers and several individuals inside of them.
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