172S and 172SP same or different airplanes?

flhrci

flhrci

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David
The 172SP I teach in is registered as a 172S. Tail number is N785SP. I have seen references to 172S models on the net and I have seen supposed 172SP models without the SP in the tail number. Are they the same or different?

David
 
Same. Model number is 172S. Marketing nickname is "Skyhawk SP", supposedly meaning "special performance" or some such inane thing, to differentiate it from the 160 hp Model 172R "Skyhawk".

The 172R was dropped from the catalog a couple of years ago, so the 172S is now just called "Skyhawk".

There is no model number "172SP".
 
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Same. The SP is the marketing designation for the 172S much like Hawk XP is the marketing term for the R172K. I can't remember what the "SP" meant though...
 
Cessna model numbers are perfectly logical and follow a precise pattern.

A retractable 172 is a Model 172RG. A retractable Cardinal is a Model 177RG. So of course a retractable 182 is a ... nope, it's a Model R182. But a Model R172 is a fixed-gear 172 with a bigger engine. And don't confuse the Model R182 with the Model 182R (or an R172 with a 172R). Or the Model 182T, or a turbocharged Model T182. You could also have a fixed gear Model T182R, but the turbo'ed retractable is the Model TR182. Still with me?

Another big-engine 172 was the Model P172, but a Model P206 had the same size engine as the other 206's but with nicer seats. And a Model P210 was a 210 with pressurization.

Put an 'A' in front of a Model 150 or 152 (A150/A152) and you've made it aerobatic. Put an 'A' in front of a 185 Skywagon or 188 Agwagon and you've made it with a bigger engine. Put an 'A' in front of a 182 and you've made it ... in Argentina!

:dunno: :D
 
172 SP is a lycoming IO-360 180HP

Re-start cessnas. our club rents them for $100/hr wet. About 850lb useful, "car" seatbelts, KAP autopilots w altitude pre-select and garmin 650s
 
dell30rb said:
172 SP is a lycoming IO-360 180HP

Re-start cessnas. our club rents them for $100/hr wet. About 850lb useful, "car" seatbelts, KAP autopilots w altitude pre-select and garmin 650s
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I don't get it.....

an 0-360 is already a 180 HP with a carb...:dunno::confused::confused::confused::confused::confused:
 
N801BH said:
I don't get it.....

an 0-360 is already a 180 HP with a carb...:dunno::confused::confused::confused::confused::confused:
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And a fuel-injected Lycoming IO-360 could be 200 hp, or it could be de-rated to 180 or 160 hp. When Cessna restarted with the 172R in 1996, they wanted to go to all fuel-injected engines. The only carbureted Cessnas since then have been the handful of 162 Skycatchers.
 
Pilawt said:
And a fuel-injected Lycoming IO-360 could be 200 hp, or it could be de-rated to 180 or 160 hp. When Cessna restarted with the 172R in 1996, they wanted to go to all fuel-injected engines. The only carbureted Cessnas since then have been the handful of 162 Skycatchers.
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God knows I am the MASTER of derating a motor....I took a 840 HP one and made it a 400 HP one.......

How does the certified world work ???:confused:...:confused:
 
saulico said:
Same. The SP is the marketing designation for the 172S much like Hawk XP is the marketing term for the R172K. I can't remember what the "SP" meant though...
Click to expand...

I thought the XP was 200+ HP CS prop, only 172 I've ever seen that could pull off being put on floats.

Why would anyone who doesn't own a flight school buy a 172 or 152, nice planes but you can have alot more fun for the same money in a 7ECA, PA18, S108, C170 etc.
 
James331 said:
I thought the XP was 200+ HP CS prop, only 172 I've ever seen that could pull off being put on floats.

Why would anyone who doesn't own a flight school buy a 172 or 152, nice planes but you can have alot more fun for the same money in a 7ECA, PA18, S108, C170 etc.
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Yup.. A 6 cyl Conti too....
 
Pilawt said:
Cessna model numbers are perfectly logical and follow a precise pattern.



A retractable 172 is a Model 172RG. A retractable Cardinal is a Model 177RG. So of course a retractable 182 is a ... nope, it's a Model R182. But a Model R172 is a fixed-gear 172 with a bigger engine. And don't confuse the Model R182 with the Model 182R (or an R172 with a 172R). Or the Model 182T, or a turbocharged Model T182. You could also have a fixed gear Model T182R, but the turbo'ed retractable is the Model TR182. Still with me?



Another big-engine 172 was the Model P172, but a Model P206 had the same size engine as the other 206's but with nicer seats. And a Model P210 was a 210 with pressurization.



Put an 'A' in front of a Model 150 or 152 (A150/A152) and you've made it aerobatic. Put an 'A' in front of a 185 Skywagon or 188 Agwagon and you've made it with a bigger engine. Put an 'A' in front of a 182 and you've made it ... in Argentina!



:dunno: :D
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Haha, I love it!
 
Ron Levy said:
IIRC, the original 172XP had a 195HP Continental IO-360, but there were STC's to upgrade it to 210HP.
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Correct. Continental IO-360K and IO-360KB on the R172. I've done a fair bit of instructing in one - they certainly climb a little better than the 160 HP but really aren't the best trainer. They're fairly nose heavy and students are prone to land pretty flat as a result.

172 w/ the O320 are far better trainers for primary IMO.
 
N801BH said:
God knows I am the MASTER of derating a motor....I took a 840 HP one and made it a 400 HP one.......

How does the certified world work ???:confused:...:confused:
Click to expand...

Redline got moved. Different markings and swap out the prop to meet the new/actual redline and you have an STC'd 172R with 180HP.
 
James331 said:
I thought the XP was 200+ HP CS prop
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The R172 series is the 172 airframe with the six-cylinder Continental IO-360 (same engine as found in the C-336/337 Skymaster). The R172 series was built under the same type certificate as the old C-175, rather than the 172's TC.

The Army's T-41B Mescalero trainer is a model R172E.

cessna_r172e_t41b.jpg


In 1968 Cessna's French affiliate started building a civilian version, the FR172E "Reims Rocket" with the engine rated at 210 hp/2800 rpm, as on the T-41B. They were not offered on the US market.

cessna_fr172g_1970.jpg


With the Cardinal program winding down in the mid 1970s, Cessna introduced an Americanized version of the Reims Rocket, called Model R172K, to fill the gap in the US catalog. Its advertising nickname was "Hawk XP" (not "172XP", not "Skyhawk XP"). It had the same engine as the French version, but de-rated to 195 hp/2600 rpm for noise abatement (though an STC allows restoring the full 210 hp). Production of the R172 series, both in the US and in France, ended after the 1981 model year.

cessna_r172k_1981.jpg
 
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James331 said:
I thought the XP was 200+ HP CS prop, only 172 I've ever seen that could pull off being put on floats.

Why would anyone who doesn't own a flight school buy a 172 or 152, nice planes but you can have alot more fun for the same money in a 7ECA, PA18, S108, C170 etc.
Click to expand...

Because the insurance costs of a 172 or 152 are going to be vastly lower than a tailwheel plane.
 
KSCessnaDriver said:
Because the insurance costs of a 172 or 152 are going to be vastly lower than a tailwheel plane.
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With around 100tt my insurance (with 35k hull) was under 1k a year for my first plane that I built my CPL hours in.

I doubt I could ever bring myself to own a trike unless it was a 182 making money dropping tandems.
 
With 4,000 hours total and about 300 tailwheel, the insurance premium on my Sport Cub was triple that for my C-172N.

I understand your feeling, though. I had a blast with the Cub, but the 172 is just more practical for our mission.
 
James331 said:
With around 100tt my insurance (with 35k hull) was under 1k a year for my first plane that I built my CPL hours in.

I doubt I could ever bring myself to own a trike unless it was a 182 making money dropping tandems.
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Different strokes for different folks.
 
Pilawt said:
No such thing as a "172SP". It's registered as "172S".

The 172R had the same Lycoming IO-360 engine, just de-rated to 160 hp.
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Or you could have a 172R with the Great Planes STC, that gives you an IO360 without the derate, back to 180hp. Ours trues out quite reliably at 120KTAS in the 6000-8000' range, pretty good for a 172.
 
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