World A-6 Intruder
10-26-2007, 10:23 PM
#76
RE: World A-6 Intruder
I am so biting at the bit for one. Last weekend I got to see a WM Trudy and see it fly. I can now understand why it's so popular. I'd understand better if I could fly one though! 
FB
FB
11-08-2007, 08:01 PM
#78
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RE: World A-6 Intruder
ORIGINAL: cmgtech1
The SPA contest season has wound down, with only a couple of "casual" contests left in 2007.
The SPA contest season has wound down, with only a couple of "casual" contests left in 2007.
Does anyone know if a YS 110 work or be non SPA approved?
Is the 4-stroke limit a .91???
I love the look of this bird....
I always have had a soft spot for the Coast guard colors!
My next one after this plane my be the T-24 Trojan...LOL
11-25-2007, 08:06 PM
#80
RE: World A-6 Intruder
I'm sorry, but no - it is not still right thrust when you are inverted. It becomes left thrust (orientation to the gravity well - not the top or bottom of the model) which adds to the model's tendency to roll to the left when using a standard, non reversed rotation, glow engine.
This is not to say that other factors are to be ignored, as you mentioned spiral slipstream, etc. But the dominant force, engine torque, and the additive force of what is now left thrust is enough to pull the model off course if not addressed via other means. Again, the measuring standard is the gravity well of the Earth.
This is not to say that other factors are to be ignored, as you mentioned spiral slipstream, etc. But the dominant force, engine torque, and the additive force of what is now left thrust is enough to pull the model off course if not addressed via other means. Again, the measuring standard is the gravity well of the Earth.
As a private pilot and having worked for an aircraft company for a short time. The referance is always to the plane, not the ground, so I tend to view any other referance as incorrect or get utterly confused. Otherwise I think you are correct, though I think the spiral slipstream is more dominant though not always the most dominant at speed.
12-22-2007, 01:10 PM
#82
My Feedback: (6)
RE: World A-6 Intruder
I just ordered a A-6 from Airborne. I'll see if it comes in anytime soon. Ordered a Saito .91 from Wholesale trains for 244.99 w/ free shipping. Ill go with some high end JR servos.
Sparky
OBTW I have 1400 hours as a Naval Aviator flying the Intruder so I am really jazzed about this being "My Plane". I'll see about adding squadron specific markings as well.
Sparky
OBTW I have 1400 hours as a Naval Aviator flying the Intruder so I am really jazzed about this being "My Plane". I'll see about adding squadron specific markings as well.
12-22-2007, 02:55 PM
#83
My Feedback: (15)
RE: World A-6 Intruder
USN - Good to see military pilots on board here. I spent time in an LTA unit AEW, ZW-1, Lakehurst, NJ. Flew CAC crew. Other unit, ZP-3, ASW. Many years ago. All USN blimp's grounded after two crashes off east coast. Total killed, 69 from both.
Saw lot of Russian trawlers always looking at us, few sub's. Two HU unit's there, and about 15 AD-4's, I think AF or Marine's called them Skyraider's.
I have had a nose heavy Intruder, just re-built from a mishap, moved the battery pack to back of servos. Will see how it flys in about a week. Lot of guy's say it needs weight in tail.
Last msg from Airborne, they are shipping 12/27 from their warehouse, saying that the shipment will be there by then.
Vince
Hobe Sound, FL
Saw lot of Russian trawlers always looking at us, few sub's. Two HU unit's there, and about 15 AD-4's, I think AF or Marine's called them Skyraider's.
I have had a nose heavy Intruder, just re-built from a mishap, moved the battery pack to back of servos. Will see how it flys in about a week. Lot of guy's say it needs weight in tail.
Last msg from Airborne, they are shipping 12/27 from their warehouse, saying that the shipment will be there by then.
Vince
Hobe Sound, FL
12-22-2007, 07:35 PM
#84
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RE: World A-6 Intruder
Good friend JIm Kirkland flew it with retracts.
The A-6 is for those folks who like to rip......... it is fast!
Kirkland always flew thinner wings than everyone else. Pappy Debolt was his idol.
The A-6 is for those folks who like to rip......... it is fast!
Kirkland always flew thinner wings than everyone else. Pappy Debolt was his idol.
12-23-2007, 10:47 PM
#88
My Feedback: (6)
RE: World A-6 Intruder
If everyone says they add weight to the tail why don't you put the servos in the tail? I just can't imagine adding ballast to a plane as long as you have the option of moving stuff around to meet the balance. I will plan on adding a hatch in the back and start out with the servos in the tail. Has any one thought about adding another landing gear block about 1 inch aft of the present set up?
What size spinner does it take? What props are best with the Saito .91?
I remember the blimps at Glenco in the early 60's and inside the Blimp hangars were where I saw my first micro film plane flown.
Sparky
What size spinner does it take? What props are best with the Saito .91?
I remember the blimps at Glenco in the early 60's and inside the Blimp hangars were where I saw my first micro film plane flown.
Sparky
12-24-2007, 04:46 AM
#90
My Feedback: (15)
RE: World A-6 Intruder
Intruder retracts, tail weight, etc. I am using low profile servos in the wing, and have a few JR low profiles, I think #911's here. I will put them in the tail of the next one. I believe the spinnner is 2.75". On the re-build of this one, I mounted the battery pack behind the servos, still nose heavy. OS61FX.
Ed, I guess retracts would be OK here. You can put in any length struts you need. The struts that come with the Spring-Aire's are long enough. I am always cutting them off.
Here is Intruder before re-build. If you want one, the Intruder's will be at Airborne Models on 12/27. They are shipping out to the hobby shops on the 28th. I have one on backorder.
I have included a picture here of installing elevator pushrod. It is very tight at the tail. I drilled a hole in aft section, inserted pushrod thru. You can see why. Pushrod ends then pop right into place. I use all 4:40 linkage.
Vince
Ed, I guess retracts would be OK here. You can put in any length struts you need. The struts that come with the Spring-Aire's are long enough. I am always cutting them off.
Here is Intruder before re-build. If you want one, the Intruder's will be at Airborne Models on 12/27. They are shipping out to the hobby shops on the 28th. I have one on backorder.
I have included a picture here of installing elevator pushrod. It is very tight at the tail. I drilled a hole in aft section, inserted pushrod thru. You can see why. Pushrod ends then pop right into place. I use all 4:40 linkage.
Vince
12-28-2007, 11:31 AM
#91
My Feedback: (6)
RE: World A-6 Intruder
I got a call from Airborne dec 24 concerning my A-6. They said that all the planes in this shipment were spoken for and are being shipped out 26 Dec. So if you have an A-6 on back order you should be getting something soon. I am on the next shipment back order list they expect some in at the end of Jan, that's fine with me since we have winter this time of the year and not much flying goes on right now.
I really appriciate the phone call from Airborne explaining the situation.
Sparky
I really appriciate the phone call from Airborne explaining the situation.
Sparky
12-29-2007, 07:49 AM
#93
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RE: World A-6 Intruder
2-3/4 Spinner - I used Dave Brown. I used an OS .91FS-P with a 13.5 x 9 prop. I'm not sure what the Saito will pull the best, but one of my friends used a 12 x 8.
I did not add tail weight to my Intruder - I did place the battery just behind the rear bulkhead.
.
I did not add tail weight to my Intruder - I did place the battery just behind the rear bulkhead.
ORIGINAL: elmshoot
If everyone says they add weight to the tail why don't you put the servos in the tail? I just can't imagine adding ballast to a plane as long as you have the option of moving stuff around to meet the balance. I will plan on adding a hatch in the back and start out with the servos in the tail. Has any one thought about adding another landing gear block about 1 inch aft of the present set up?
What size spinner does it take? What props are best with the Saito .91?
I remember the blimps at Glenco in the early 60's and inside the Blimp hangars were where I saw my first micro film plane flown.
Sparky
If everyone says they add weight to the tail why don't you put the servos in the tail? I just can't imagine adding ballast to a plane as long as you have the option of moving stuff around to meet the balance. I will plan on adding a hatch in the back and start out with the servos in the tail. Has any one thought about adding another landing gear block about 1 inch aft of the present set up?
What size spinner does it take? What props are best with the Saito .91?
I remember the blimps at Glenco in the early 60's and inside the Blimp hangars were where I saw my first micro film plane flown.
Sparky
01-04-2008, 11:55 PM
#94
My Feedback: (6)
RE: World A-6 Intruder
I got a call from Airborne on 2 Jan and they are shipping my plane this week so I have no excuses for not being ready for our pattern contest. The Saito .91 arrived already. I really am suprised in the level of customer service I have received from Airborne so far.
I only hope the product holds up as well.
While they were on the phone I asked them about the issue of you guys finding an aft CG from were they recomend. I also asked about moving the main landing gear blocks back an inch to accomidate the aft CG while and keeping the nose weight on the nose landing gear.
They were not aware of your post so I suggested they look here.
Sparky
I only hope the product holds up as well.
While they were on the phone I asked them about the issue of you guys finding an aft CG from were they recomend. I also asked about moving the main landing gear blocks back an inch to accomidate the aft CG while and keeping the nose weight on the nose landing gear.
They were not aware of your post so I suggested they look here.
Sparky
01-06-2008, 07:11 AM
#96
My Feedback: (15)
RE: World A-6 Intruder
I will mount two elevator servos in the tail on my next Intruder. Due here next week, but may be March till I get to it. I will keep you guys posted. On the re-build of my current Intruder, I have the battery pack behind the servos, and made other adjustments.
Vince
Vince
01-06-2008, 09:56 AM
#98
My Feedback: (15)
RE: World A-6 Intruder
Two Elevator Servos: Ed, you are right. I have other planes here with pushrods, and it work's fine. I will use the JR911's, which are low profile wing servos. One on each side, reverse with the TX. Reason to put 2 back there, more weight.
More weight? Who needs that? The Intruder.
Not a problem setting up. When I did the first one, I thought of mounting them in the stab, but thinking now, maybe the JR aileron servo could do that. Will check all options on the next one.
Vince
More weight? Who needs that? The Intruder.
Not a problem setting up. When I did the first one, I thought of mounting them in the stab, but thinking now, maybe the JR aileron servo could do that. Will check all options on the next one.
Vince
01-10-2008, 10:15 AM
#99
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RE: World A-6 Intruder
I just received my new Intruder. Apparently, in this last batch, World Models has changed the design of the push-rod system. This one has guide tubes installed for the rudder and elevators. This will make installation of the push rods much simpler. Also, I was suprised to find that all the control surfaces were pre-installed and glued. Hope to have it flying in a couple of weeks so I can start preparing for a summer of SPA.
01-10-2008, 07:06 PM
#100
My Feedback: (15)
RE: World A-6 Intruder
I got my Intruder #2 today, haven't looked at it yet, still in the box. I will strip it and MK it same as the first one. Interesting on the pushrods. See that attached picture. I solved the elevator linkage hookup in the back by just pushing it thru from the back.
The 12" 440 pushrods will just fall into place.
Vince
The 12" 440 pushrods will just fall into place.
Vince