A friend of mine was trying to get insurance for
his cabin-class twin that he bought. His first
twin.
Insurance broker gave him credit for 400 hours of
RG time in a Challenger ultralight on floats ... with
retractable gear!
I shrugged my shoulders. Who knew? Insurance
was dirt cheap for him. I hammered on him mercilessly
about [b]REMEMBERING TO LOWER THE FUCKING GEAR[/b].
Oddly, insurance companies love me. I guess 40 years
of accident-free flying is good for something.
[img width=500 height=352][/img]
The important things are always simple.
The simple things are always hard.
C172RG - worth a checkout?
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- Posts: 3450
- Joined: Wed Apr 29, 2015 10:31 am
[quote]I dont remember the 172RG offering any performance advantages over a regular 172[/quote]
Getting rid of the gear drag is not as significant
as you might think, because the 172 doesn't go
very fast, and it's spring gear isn't actually that
draggy. Columbia and Cirrus are fixed gear, after
all, and they're a lot faster than a 172.
Retractable gear weighs more - which slows you
down - costs more, and is not as reliable, and
costs a lot more to maintain.
Maybe on a 177 or 210 that doesn't have the drag
of struts, RG might make more sense. I dunno.
I'd rather have a turbo-normalized 185 with a 530
and a kevlar O2 tank, but I was dropped on my
head as a small child.
Getting rid of the gear drag is not as significant
as you might think, because the 172 doesn't go
very fast, and it's spring gear isn't actually that
draggy. Columbia and Cirrus are fixed gear, after
all, and they're a lot faster than a 172.
Retractable gear weighs more - which slows you
down - costs more, and is not as reliable, and
costs a lot more to maintain.
Maybe on a 177 or 210 that doesn't have the drag
of struts, RG might make more sense. I dunno.
I'd rather have a turbo-normalized 185 with a 530
and a kevlar O2 tank, but I was dropped on my
head as a small child.
I always wanted a Harrier so I could drive everyone crazy landing and taking offin my back yard.
I remember three of them hovering on the beach in Belize many years ago and since then that is what I want.
I remember three of them hovering on the beach in Belize many years ago and since then that is what I want.
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- Posts: 338
- Joined: Wed Nov 04, 2015 9:04 pm
C 172 C 172 RG
SPEED
Max at SL 123 KNOTS 145 KNOTS
CRUISE
75% 8000' 120 KNOTS 75% 9000' 140 KNOTS
RATE OF CLIMB SL
700FPM 800FPM
USEFUL LOAD
980 LBS 1100 LBS
TAKEOFF PERFORMANCE
GR ROLL 890FT 1060FT
50 FT OBSTACLE
1625FT 1775FT
LANDING PERFORMANCE
GR ROLL 540FT 625FT
50 FT OBSTACLE 1280FT 1340FT
SPEED
Max at SL 123 KNOTS 145 KNOTS
CRUISE
75% 8000' 120 KNOTS 75% 9000' 140 KNOTS
RATE OF CLIMB SL
700FPM 800FPM
USEFUL LOAD
980 LBS 1100 LBS
TAKEOFF PERFORMANCE
GR ROLL 890FT 1060FT
50 FT OBSTACLE
1625FT 1775FT
LANDING PERFORMANCE
GR ROLL 540FT 625FT
50 FT OBSTACLE 1280FT 1340FT
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- Posts: 3450
- Joined: Wed Apr 29, 2015 10:31 am
PS If you put a better engine and c/s prop into
a fixed-gear 172, the numbers improve:
[quote]1978 Hawk XP performance & specifications
SPEED:
Maximum at Sea Level 133 knots 246 kph
Cruise, 80% Power at 6000 Ft 130 knots 241 kph
CRUISE:
Recommended lean mixture with fuel
allowance for engine start, taxi, takeoff,
climb and 45 minutes reserve at 45% power
80% Power at 6000 Ft with 480 nm 889 km
49 Gallons Usable Fuel 3.7 hr 3.7 hr
Maximum Range at 10,000 Ft 575 nm 1065 km
with 49 Gallons Usable Fuel 6.1 hr 6.1 hr
RATE OF CLIMB AT SEA LEVEL 870 fpm 265 mpm
SERVICE CEILING 17,000 ft 5182 m
TAKEOFF PERFORMANCE:
Ground Roll 800 ft 244 m
Total Distance Over 50-Ft Obstacle 1360 ft 415 m
LANDING PERFORMANCE:
Ground Roll 620 ft 189 m
Total Distance Over 50-Ft Obstacle 1270 ft 387 m
STALL SPEED, (CAS):
Flaps Up, Power Off 53 knots 98 kph
Flaps Down, Power Off 46 knots 85 kph
MAXIMUM WEIGHT 2550 lb 1157 kg
STANDARD EMPTY WEIGHT:
Hawk XP 1531 lb 695 kg
Hawk XP II 1557 lb 706 kg
MAXIMUM USEFUL LOAD:
Hawk XP 1019 lb 462 kg
Hawk XP II 993 lb 451 kg
BAGGAGE ALLOWANCE 200 lb 91 kg
WING LOADING 14.7 lb/sq ft 71.6 kg/sq m
POWER LOADING 13.1 lb/hp 5.9 kb/hp
WING SPAN 35 ft, 10 in 10.92 m
WING AREA 174 sq ft 16.16 sq m
LENGTH 27 ft, 2 in 8.28 m
HEIGHT 8 ft, 9.5 in 2.68 m
FUEL CAPACITY: Total 52 gal 197 liters
OIL CAPACITY 8 qt 7.6 liters
ENGINE: Teledyne-Continental IO-360-K Fuel
Injection Engine; 195 BHP at 2600 RPM
PROPELLER: Constant Speed,
76 In Diameter(l.93 m)[/quote]
If you drive a 3/8ths wrench, you can up the RPM to 2800
and 210hp and improve it some more.
a fixed-gear 172, the numbers improve:
[quote]1978 Hawk XP performance & specifications
SPEED:
Maximum at Sea Level 133 knots 246 kph
Cruise, 80% Power at 6000 Ft 130 knots 241 kph
CRUISE:
Recommended lean mixture with fuel
allowance for engine start, taxi, takeoff,
climb and 45 minutes reserve at 45% power
80% Power at 6000 Ft with 480 nm 889 km
49 Gallons Usable Fuel 3.7 hr 3.7 hr
Maximum Range at 10,000 Ft 575 nm 1065 km
with 49 Gallons Usable Fuel 6.1 hr 6.1 hr
RATE OF CLIMB AT SEA LEVEL 870 fpm 265 mpm
SERVICE CEILING 17,000 ft 5182 m
TAKEOFF PERFORMANCE:
Ground Roll 800 ft 244 m
Total Distance Over 50-Ft Obstacle 1360 ft 415 m
LANDING PERFORMANCE:
Ground Roll 620 ft 189 m
Total Distance Over 50-Ft Obstacle 1270 ft 387 m
STALL SPEED, (CAS):
Flaps Up, Power Off 53 knots 98 kph
Flaps Down, Power Off 46 knots 85 kph
MAXIMUM WEIGHT 2550 lb 1157 kg
STANDARD EMPTY WEIGHT:
Hawk XP 1531 lb 695 kg
Hawk XP II 1557 lb 706 kg
MAXIMUM USEFUL LOAD:
Hawk XP 1019 lb 462 kg
Hawk XP II 993 lb 451 kg
BAGGAGE ALLOWANCE 200 lb 91 kg
WING LOADING 14.7 lb/sq ft 71.6 kg/sq m
POWER LOADING 13.1 lb/hp 5.9 kb/hp
WING SPAN 35 ft, 10 in 10.92 m
WING AREA 174 sq ft 16.16 sq m
LENGTH 27 ft, 2 in 8.28 m
HEIGHT 8 ft, 9.5 in 2.68 m
FUEL CAPACITY: Total 52 gal 197 liters
OIL CAPACITY 8 qt 7.6 liters
ENGINE: Teledyne-Continental IO-360-K Fuel
Injection Engine; 195 BHP at 2600 RPM
PROPELLER: Constant Speed,
76 In Diameter(l.93 m)[/quote]
If you drive a 3/8ths wrench, you can up the RPM to 2800
and 210hp and improve it some more.
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- Posts: 404
- Joined: Tue Sep 08, 2015 1:44 am
[quote author=Chris link=topic=5379.msg13930#msg13930 date=1484533298]
From an insurance perspective, would there be any value in someone looking into buying an RG airplane to first rack up a handful of hours in a Cutlass? Not my situation, I'm just curious.
[/quote]
Yes, which is why I did it, then stepping into the considerably more powerful 182 RG was also a non event. Biggest change was a lot more left turn tendency on TO.
Realistically, a fixed gear 172 is a 110-115 knot AC. A cutlass is 125, 130 if bugs are all off Ect.. 145? Not happening. But it seems better. It's more a CS prop and gear routine become second nature, transitioning easier to larger AC, without getting in too much trouble -- it's not fast enough for that.
From an insurance perspective, would there be any value in someone looking into buying an RG airplane to first rack up a handful of hours in a Cutlass? Not my situation, I'm just curious.
[/quote]
Yes, which is why I did it, then stepping into the considerably more powerful 182 RG was also a non event. Biggest change was a lot more left turn tendency on TO.
Realistically, a fixed gear 172 is a 110-115 knot AC. A cutlass is 125, 130 if bugs are all off Ect.. 145? Not happening. But it seems better. It's more a CS prop and gear routine become second nature, transitioning easier to larger AC, without getting in too much trouble -- it's not fast enough for that.
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