CARF-Models P-47 Thunderbolt
07-03-2011, 07:42 AM
#177
RE: CARF-Models P-47 Thunderbolt
The big radials are far more fuel efficient than you might think, gas or glow.
I use a 32 ounce (1 liter) tank in my Jug and it is more than enough gas for a good 15 minute flight. You could never get away with this on even a 150cc gasser twin. Gas, four stroke, low rpm, and constant high vacuum thanks to 5 cylinders, all contribute to superior fuel economy on the Moki.
I used to have a Technopower 9 cylinder glow - 4 cu. in. She ran with a .60-sized carburetor and got amazing fuel economy.
A DA100 or 120 twin will use as much gas as a Moki 250.
I use a 32 ounce (1 liter) tank in my Jug and it is more than enough gas for a good 15 minute flight. You could never get away with this on even a 150cc gasser twin. Gas, four stroke, low rpm, and constant high vacuum thanks to 5 cylinders, all contribute to superior fuel economy on the Moki.
I used to have a Technopower 9 cylinder glow - 4 cu. in. She ran with a .60-sized carburetor and got amazing fuel economy.
A DA100 or 120 twin will use as much gas as a Moki 250.
07-03-2011, 09:48 AM
#180
Join Date: Dec 2008
Location: herveybay, AUSTRALIA
Posts: 304
Likes: 0
Received 0 Likes
on
0 Posts
RE: CARF-Models P-47 Thunderbolt
ORIGINAL: IFLYBVM2
I have preordered the Dynamic Balsa cockpit kit for mine and was wondering what you guys would suggest for a first class full body pilot for the '47 ?
THanks-Mike Oberst
I have preordered the Dynamic Balsa cockpit kit for mine and was wondering what you guys would suggest for a first class full body pilot for the '47 ?
THanks-Mike Oberst
Try Phil Clark at www.fighteraces.co.uk for your pilot .
REGARDS
JOHN
07-03-2011, 12:03 PM
#181
RE: CARF-Models P-47 Thunderbolt
Richard,
Congrats on your maiden flight! It appears you are very happy with the flight. Did you mix any down elevator with your flaps in either half or full? If so, what percentage? Also, did you release the final version of the manual to CARF yet?
Congrats on your maiden flight! It appears you are very happy with the flight. Did you mix any down elevator with your flaps in either half or full? If so, what percentage? Also, did you release the final version of the manual to CARF yet?
07-03-2011, 12:05 PM
#182
RE: CARF-Models P-47 Thunderbolt
ORIGINAL: RichardGee
OK, OK... but let's be fair... he got a sneak peak at my instruction manual draft AND mine was painted!
Just glad to see JUGS IN THE AIR, ANYWHERE!!!
OK, OK... but let's be fair... he got a sneak peak at my instruction manual draft AND mine was painted!
Just glad to see JUGS IN THE AIR, ANYWHERE!!!
Indeed, it was painted This jug is a marvel in the air, and your finish on it is outstanding. Iactually thinkGeir will use the same paint scheme as you did.
07-03-2011, 01:56 PM
#183
RE: CARF-Models P-47 Thunderbolt
THANKS ALL.
No down elevator was necessary with full flaps. The aircraft actually pitches down somewhat with the application of full flaps, but this is probably due to their profound affect on air speed! Adding a bit of power and adjusting attitude with elevator is all that is necessary to fly her down onto the runway.
After one flight I am NO expert, mind you, but that is my immediate after-flight observation.
No down elevator was necessary with full flaps. The aircraft actually pitches down somewhat with the application of full flaps, but this is probably due to their profound affect on air speed! Adding a bit of power and adjusting attitude with elevator is all that is necessary to fly her down onto the runway.
After one flight I am NO expert, mind you, but that is my immediate after-flight observation.
07-04-2011, 01:11 AM
#185
Senior Member
Join Date: Aug 2008
Location: Christchurch, NEW ZEALAND
Posts: 823
Likes: 0
Received 2 Likes
on
2 Posts
RE: CARF-Models P-47 Thunderbolt
ORIGINAL: RichardGee
The big radials are far more fuel efficient than you might think, gas or glow.
I use a 32 ounce (1 liter) tank in my Jug and it is more than enough gas for a good 15 minute flight...............
The big radials are far more fuel efficient than you might think, gas or glow.
I use a 32 ounce (1 liter) tank in my Jug and it is more than enough gas for a good 15 minute flight...............
To be fair (and serious for a moment), seeing how these big, and also smaller gas motors perform (and the flight times they offer), it's been one of the main decisions behind my idea to go gas on the 1/7th kit I'm looking to build, by popping a DLE 20 into it VS just using a nitro motor that I already had, as why would I want to only fly for 10 min when I can fly for up to 3 times that period on the same size tank should I chose to.
07-04-2011, 08:51 AM
#186
My Feedback: (52)
Join Date: May 2010
Location: Pasadena, MD
Posts: 320
Likes: 0
Received 0 Likes
on
0 Posts
RE: CARF-Models P-47 Thunderbolt
Richard,
How did you balance the four blade prop?
Ihave been thinking about buying one of these from Vogelsang:
http://www.teamaeroscale.com/fema3dbalancer.html
John
How did you balance the four blade prop?
Ihave been thinking about buying one of these from Vogelsang:
http://www.teamaeroscale.com/fema3dbalancer.html
John
07-04-2011, 09:04 AM
#187
RE: CARF-Models P-47 Thunderbolt
I used a DuBro prop balancer.
http://hobby.dubro.com/videos/tech-t...-balancer-2_21
Worked just fine.
I use this balancer for all my props, both for balancing blades and hub.
http://hobby.dubro.com/videos/tech-t...-balancer-2_21
Worked just fine.
I use this balancer for all my props, both for balancing blades and hub.
07-08-2011, 05:36 AM
#191
RE: CARF-Models P-47 Thunderbolt
Guys,
The Builder's Manual should be posted on the CARF website anytime now... KEEP CHECKING.
Also, buyers of the kit who did not receive a cockpit kit can acquire one through CARF. I was told a note would be posted on the website.
The Builder's Manual should be posted on the CARF website anytime now... KEEP CHECKING.
Also, buyers of the kit who did not receive a cockpit kit can acquire one through CARF. I was told a note would be posted on the website.
07-12-2011, 02:05 AM
#192
RE: CARF-Models P-47 Thunderbolt
ORIGINAL: RichardGee
Guys,
The Builder's Manual should be posted on the CARF website anytime now... KEEP CHECKING.
Also, buyers of the kit who did not receive a cockpit kit can acquire one through CARF. I was told a note would be posted on the website.
Guys,
The Builder's Manual should be posted on the CARF website anytime now... KEEP CHECKING.
Also, buyers of the kit who did not receive a cockpit kit can acquire one through CARF. I was told a note would be posted on the website.
Manual is available now
http://www.carf-models.com/public_ca...structions.pdf
07-12-2011, 09:46 AM
#195
RE: CARF-Models P-47 Thunderbolt
ORIGINAL: RichardGee
THANK YOU
IF you find areas that are unclear or need some improvement, let me know.
GOOD LUCK with your build!
THANK YOU
IF you find areas that are unclear or need some improvement, let me know.
GOOD LUCK with your build!
Dear Richard
The manual looks excellent, one of the best from CARF I have seen (I own a Yak 55-SP 2.1m and 2.6m which I compete in IMAC with). Iwill however let you know if I have any questions, but the details you have provided, along with excellent illustrations, should make the CARF P-47 a real joy to build. Will spend my vacation relaxingby reading through every step in detail. and planning my build.
One Q: What was the dry weight of your "Bonnie", when all was said and done?
Cheers
07-12-2011, 10:07 AM
#196
RE: CARF-Models P-47 Thunderbolt
I have not weighed my completed Thunderbolt. This may be the FIRST airplane I have not bothered to weigh...why?
The prototype weighed in at just under 50 pounds. I am assuming mine is similar. But in all honesty, what does it matter?
Once completed, there was nothing I could do to change the weight... it is what it is.[8D]
Once flown, I could see that weight is not an issue either for the airframe or the engine. The plane does not "feel" like a 50 pound aircraft in the air. So... whatever it weighs, it seems to be in the ballpark
Because of the high level of pre-fab, I cannot fathom what a modeler could do to profoundly affect finished weight EXCEPT to use a DA120 instead of the Moki 250. However, even with locating the equipment far forward (as shown in the manual), nose weight might still be necessary.
I made several attempts to acquire a DA120 from the owner of Desert Aircraft so that we could actually SHOW the alternate powerplant installation. Despite promises to provide me with an engine for the manual, I never received one[
]
Having seen a 55 pound Hawker Sea Fury flying with a DA100, I have ZERO DOUBTS that a DA120 will very easily fly a 50 pound (or less) CARF Thunderbolt.
The prototype weighed in at just under 50 pounds. I am assuming mine is similar. But in all honesty, what does it matter?
Once completed, there was nothing I could do to change the weight... it is what it is.[8D]
Once flown, I could see that weight is not an issue either for the airframe or the engine. The plane does not "feel" like a 50 pound aircraft in the air. So... whatever it weighs, it seems to be in the ballpark
Because of the high level of pre-fab, I cannot fathom what a modeler could do to profoundly affect finished weight EXCEPT to use a DA120 instead of the Moki 250. However, even with locating the equipment far forward (as shown in the manual), nose weight might still be necessary.
I made several attempts to acquire a DA120 from the owner of Desert Aircraft so that we could actually SHOW the alternate powerplant installation. Despite promises to provide me with an engine for the manual, I never received one[
]Having seen a 55 pound Hawker Sea Fury flying with a DA100, I have ZERO DOUBTS that a DA120 will very easily fly a 50 pound (or less) CARF Thunderbolt.
07-12-2011, 10:37 AM
#197
RE: CARF-Models P-47 Thunderbolt
Hi Richard
Thanks for the info, I will be using a Moki250 in mine.
The reason for asking is that in my country (Norway) there will probably be regulations in place in the foreseeable future that ask for en elaborate procedure for certifying model airplanes above a certain weight (tentativelysuggested to 25 kg, but this might increase), so it would be a great advantage to have something weighing less than 25 kg (roughly 60 pounds).Both from what you are saying and from what I learned from Geir Flesche, this most likely will not be an issue with this model.
As far as performance/weight is concerned, Icompletely agree with what you are saying.
Cheers
Thanks for the info, I will be using a Moki250 in mine.
The reason for asking is that in my country (Norway) there will probably be regulations in place in the foreseeable future that ask for en elaborate procedure for certifying model airplanes above a certain weight (tentativelysuggested to 25 kg, but this might increase), so it would be a great advantage to have something weighing less than 25 kg (roughly 60 pounds).Both from what you are saying and from what I learned from Geir Flesche, this most likely will not be an issue with this model.
As far as performance/weight is concerned, Icompletely agree with what you are saying.
Cheers
07-13-2011, 04:38 PM
#199
My Feedback: (60)
Join Date: Dec 2001
Location: Litchfield Park,
AZ
Posts: 7,677
Likes: 0
Received 25 Likes
on
23 Posts
RE: CARF-Models P-47 Thunderbolt
ORIGINAL: RichardGee
Also, buyers of the kit who did not receive a cockpit kit can acquire one through CARF. I was told a note would be posted on the website.
Also, buyers of the kit who did not receive a cockpit kit can acquire one through CARF. I was told a note would be posted on the website.
07-13-2011, 06:18 PM
#200
Join Date: Feb 2006
Location: Alexander City,
AL
Posts: 2,584
Likes: 0
Received 0 Likes
on
0 Posts
RE: CARF-Models P-47 Thunderbolt
ORIGINAL: tail end charlie
!@#^
this is advertising, not forum
TEC
!@#^
this is advertising, not forum
TEC