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does any one know what prop I should run with this on a 120'x20' airboat :lol:
does any one know what prop I should run with this on a 120'x20' airboat :lol:
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engine for a airboat yacht
- Thread starter josh_2562
- Start date
The prop on the F4U Corsair with the 18 cyl Pratt & Whitney
was four blade Alum. with a 13' diameter. thuss the dip in the
wing after leaving the fuselage , otherwise they say the landing
gear would have to be to tall, and not stand up to the rough
carrier landings. They also said they were bad about spinning
out at full power from torque roll.
was four blade Alum. with a 13' diameter. thuss the dip in the
wing after leaving the fuselage , otherwise they say the landing
gear would have to be to tall, and not stand up to the rough
carrier landings. They also said they were bad about spinning
out at full power from torque roll.
emmitt Kelly
Well-known member
to give you an idea..that engine was used on the DC-7 the last prop recip airliner
and the Lockheed Constellation,
you better have a really big boat..
and google constellation crashes.. lots of magnesium.. if it ever catches fire
just jump and swim there is no putting it out once it really starts burning
there were early models that had lot of problems with carbs..once they went to
fuel injection it became a more reliable engine
there is a great story of how the engine developed before WWII. and evolved into
a very popular engine until the jets arrived
I have watched this engine start on a DC-7... it is a sight to behold!!!!
anyone that gets that engine on a boat and running... sell tickets.. I will be the
first in line!!!
and the Lockheed Constellation,
you better have a really big boat..
and google constellation crashes.. lots of magnesium.. if it ever catches fire
just jump and swim there is no putting it out once it really starts burning
there were early models that had lot of problems with carbs..once they went to
fuel injection it became a more reliable engine
there is a great story of how the engine developed before WWII. and evolved into
a very popular engine until the jets arrived
I have watched this engine start on a DC-7... it is a sight to behold!!!!
anyone that gets that engine on a boat and running... sell tickets.. I will be the
first in line!!!
emmitt Kelly
Well-known member
to give you an idea..that engine was used on the DC-7 the last prop recip airliner
and the Lockheed Constellation,
you better have a really big boat and Prop!!
and google constellation crashes.. lots of magnesium.. if it ever catches fire
just jump and swim there is no putting it out once it really starts burning
there were early models that had lot of problems with carbs..once they went to
fuel injection it became a more reliable engine
there is a great story of how the engine developed before WWII. and evolved into
a very popular engine until the jets arrived
Only one engine is bigger, the R4360 P/W 28 cylinder, on the C-124
another great show when I was in the Air force.C-124's were still being used
in the guard, when I was in AF in 1964 to '68..the sound when starting up was ... I can
not put it in words!!!
I have watched this engine start on a DC-7... it is a sight to behold!!!!
anyone that gets that engine on a boat and running... sell tickets.. I will be the
first in line!!!
and the Lockheed Constellation,
you better have a really big boat and Prop!!
and google constellation crashes.. lots of magnesium.. if it ever catches fire
just jump and swim there is no putting it out once it really starts burning
there were early models that had lot of problems with carbs..once they went to
fuel injection it became a more reliable engine
there is a great story of how the engine developed before WWII. and evolved into
a very popular engine until the jets arrived
Only one engine is bigger, the R4360 P/W 28 cylinder, on the C-124
another great show when I was in the Air force.C-124's were still being used
in the guard, when I was in AF in 1964 to '68..the sound when starting up was ... I can
not put it in words!!!
I have watched this engine start on a DC-7... it is a sight to behold!!!!
anyone that gets that engine on a boat and running... sell tickets.. I will be the
first in line!!!
Emmitt Kelly has it right, them are a thing to behold when firing up. Lots of smoke from the bottom cylinders and bunch of false starts but when she catches on she is a beast indeed.
Emmitt was the DC7 just another variant of the DC6? I have flown on DC3,5, & 6s.
Scotty
Emmitt was the DC7 just another variant of the DC6? I have flown on DC3,5, & 6s.
Scotty
emmitt Kelly
Well-known member
the DC-6
DC-6 - Four 1340kW (1800hp) Pratt & Whitney Double Wasp R2800CA15 18 cylinder twin row radial piston engines (with a maximum output rating of 1790kW (2400hp) with water injection) driving three blade constant speed Hamilton Standard propellers. DC-6B - Four 1685kW (2500hp) R2800CB17s.
DC-6 - Wing span 35.81m (117ft 6in), length 30.66m (100ft 7in), height 8.66m (28ft 5in). Wing area 135.9m2 (1463sq ft). DC-6B - Same except length 32.18m (105ft 7in), height 8.74m (28ft 8in).
DC-7
DC-7F & DC-7C - Four 2535kW (3400hp) Wright R3350EA1 or EA4 Turbo Compound radial piston engines driving four blade constant speed propellers.
DC-7F - Wing span 35.81m (117ft 6in), length 33.24m (108ft 11in), height 8.90m (29ft 3in). Wing area 136.0m2 (1463sq ft). DC-7C - Wing span 38.80m (127ft 6in), length 34.23m (112ft 3in), height 9.65m (31ft 8in). Wing area 152.0m2 (1637sq ft).
the dc6 engine was made by Pratt and Whitney, looking at the list of aircraft it was
in it looks like mostly military.. the most notable were the C123 provider was popular
in Vietnam..looked like a small c-130 with only 2 engines and the P-47 thunderbolt
the old timers when I was in the service leaned toward Pratt and Whitney engines as
easier to maintain..but that could get into a ford /chevy thing!!
DC-6 - Four 1340kW (1800hp) Pratt & Whitney Double Wasp R2800CA15 18 cylinder twin row radial piston engines (with a maximum output rating of 1790kW (2400hp) with water injection) driving three blade constant speed Hamilton Standard propellers. DC-6B - Four 1685kW (2500hp) R2800CB17s.
DC-6 - Wing span 35.81m (117ft 6in), length 30.66m (100ft 7in), height 8.66m (28ft 5in). Wing area 135.9m2 (1463sq ft). DC-6B - Same except length 32.18m (105ft 7in), height 8.74m (28ft 8in).
DC-7
DC-7F & DC-7C - Four 2535kW (3400hp) Wright R3350EA1 or EA4 Turbo Compound radial piston engines driving four blade constant speed propellers.
DC-7F - Wing span 35.81m (117ft 6in), length 33.24m (108ft 11in), height 8.90m (29ft 3in). Wing area 136.0m2 (1463sq ft). DC-7C - Wing span 38.80m (127ft 6in), length 34.23m (112ft 3in), height 9.65m (31ft 8in). Wing area 152.0m2 (1637sq ft).
the dc6 engine was made by Pratt and Whitney, looking at the list of aircraft it was
in it looks like mostly military.. the most notable were the C123 provider was popular
in Vietnam..looked like a small c-130 with only 2 engines and the P-47 thunderbolt
the old timers when I was in the service leaned toward Pratt and Whitney engines as
easier to maintain..but that could get into a ford /chevy thing!!
I flew the DC-6, the DC-7, the DC-8, and the DC-10.
The DC-7 was a little different than the 6. It had about as much power at climb power as the 6 had at max.
The Wright 3350's were not nearly as reliable as the Pratt and Whitney 2800's. The 3350 leaked oil like a British motorcycle too.
The 7 and the super Connie were designed (with PRT's) to fly coast to coast in 8 hours. We pushed the engines pretty hard to do that. The jets made them obsolete while the 6 lived on for regional service until the 737 and DC-9 came along.
jim
The DC-7 was a little different than the 6. It had about as much power at climb power as the 6 had at max.
The Wright 3350's were not nearly as reliable as the Pratt and Whitney 2800's. The 3350 leaked oil like a British motorcycle too.
The 7 and the super Connie were designed (with PRT's) to fly coast to coast in 8 hours. We pushed the engines pretty hard to do that. The jets made them obsolete while the 6 lived on for regional service until the 737 and DC-9 came along.
jim
Yal can go to http://www.youtube.com/ and search for all of these planes and see them in action. I found some nice footage ofthem starting and from the cockpit in some of them. Lot of over-the-wing stuff too.
Its a shame we havent come as far in general aviation, automotive and marine as we have in commercial aviation in the last 50 years.
Scotty
Its a shame we havent come as far in general aviation, automotive and marine as we have in commercial aviation in the last 50 years.
Scotty
emmitt Kelly
Well-known member
when you read the history of the "connie" it actually was the brain child of Kelly Johnson
engineer for later the skunk works at the request of howard hughes who owned TWA at
the time.. before WWII.. the war took the planes over and made them C-121 cargo planes
Jim, please write more on your experience flying.. everyone I knew that flew are now dead. I know you have some great stories..
I was a mechanic on c-130 and c5 before the big layoff at Lockheed in 1971..but still
love aircraft.
I am a tanker yanker until social security kicks in and then will be a full time airboater.
three sightings of aircraft in strange places
1- Augusta, Maine ..two connies one with engines and one without..but that one is explained when you google connies.
2- on US80 east of Dallas in a strip mall of all places is a MIG-15 sitting in a parking
lot!!!
3- Chico,Texas near Paris,Texas sits by the road..US 82 is a complete DC-4 nosed
near the road by an abandoned restaurant..been sitting there a long time
anyone knowing the stories on 2 and 3 please share your stories
engineer for later the skunk works at the request of howard hughes who owned TWA at
the time.. before WWII.. the war took the planes over and made them C-121 cargo planes
Jim, please write more on your experience flying.. everyone I knew that flew are now dead. I know you have some great stories..
I was a mechanic on c-130 and c5 before the big layoff at Lockheed in 1971..but still
love aircraft.
I am a tanker yanker until social security kicks in and then will be a full time airboater.
three sightings of aircraft in strange places
1- Augusta, Maine ..two connies one with engines and one without..but that one is explained when you google connies.
2- on US80 east of Dallas in a strip mall of all places is a MIG-15 sitting in a parking
lot!!!
3- Chico,Texas near Paris,Texas sits by the road..US 82 is a complete DC-4 nosed
near the road by an abandoned restaurant..been sitting there a long time
anyone knowing the stories on 2 and 3 please share your stories
Emmitt,
The Mig 15, 17, and 21 were plentiful and cheap in this country after the iron curtain fell. The Russians were selling everything. Unfortunately some of the cheapest airplanes were not anywhere near airworthy, and only made good play ground decorations. A friend of mine tried to get me to go into a partnership on a 15. It could operate off grass. Maybe they all could.
Kelly Johnson was one of the most talented designers of all time. When they designed the SR-71, they did it with slide rules. There were no viable computers then.
I am a retired airline pilot. I also flew the B-720 (engineer only), 727, 737, and 777. Can you tell where the picture was taken?
jim
The Mig 15, 17, and 21 were plentiful and cheap in this country after the iron curtain fell. The Russians were selling everything. Unfortunately some of the cheapest airplanes were not anywhere near airworthy, and only made good play ground decorations. A friend of mine tried to get me to go into a partnership on a 15. It could operate off grass. Maybe they all could.
Kelly Johnson was one of the most talented designers of all time. When they designed the SR-71, they did it with slide rules. There were no viable computers then.
I am a retired airline pilot. I also flew the B-720 (engineer only), 727, 737, and 777. Can you tell where the picture was taken?
jim
emmitt Kelly
Well-known member
Jim, just taking a guess either edwards I was in the 6515 Oms '65 to '66 then to
okinawa and cam ranh..all c-130's or Patrick afb, in fla.
I do not recognize anything but the shuttle sitting on the 747.
okinawa and cam ranh..all c-130's or Patrick afb, in fla.
I do not recognize anything but the shuttle sitting on the 747.