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Little known / experimental aircraft

taxi1

Well-Known Member
pilot
This is the list of mods to the AT-802 to make it an amphib. Pretty interesting.

1.2 FLOATS
The model 10000 amphibious float is an all aluminum constructed float with (12) watertight compartments of approximately 10,000 pounds buoyancy. As a part of the float installation, the following additional changes are made to the landplane:
1. The hydraulic landing gear retraction system components and cockpit controls are added.
2. The cockpit landing gear controls and emergency hand pump and system are added.
3. The float water rudder retraction system and cockpit controls are added. The water rudders are locked center when retracted for improved directional stability. The 2-Place model has electric water rudder retracts.
4. A ventral fin is added for improved directional stability.
5. Two auxiliary finlets are added to each side of the horizontal stabilizer for improved directional stability. Four total per aircraft.
6. The vertical fin is sealed to the fuselage/stabilizer top for improved directional stability.
7. The open fuselage structure near the landplane tail-wheel mount is faired over for improved directional stability.
8. Pump-out cups on float top deck are placed between each float watertight compartment to pump out any water in floats before flight.
9. Vortex generators are added to the wing upper surface leading edges for improved longitudinal controllability.
10. Vortex generators are added to the horizontal stabilizer upper surface leading edges for improved longitudinal controllability and stall speed reduction.
11. Vortex generators are added to the aft area of the canopy for improved stall controllability and stall speed reduction.
12. Flow energizers are added to the wing.
13. The elevator trim/servo tabs incorporate a 1-inch chord extension for improved longitudinal controllability.

 

Griz882

Frightening children with the Griz-O-Copter!
pilot
Contributor
Helicopters don’t need any runways. Existing FARPs service them.

What capability is this providing the end user that an AH-1Z isn’t? “CAS on floats” isn’t an answer.
I’d start with range….800 miles vs 150 or so for a combat loaded AH-1Z. After that the only advantage is being able to land in the water, come to a stop, pick up a downed pilot and toss him in the extra seat and take back off. It shouldn’t be impossible to rig some kind of aerial refueling to the Air Tractor. Still, the AH-1 is faster and probably carries close to the same amount of armament if not more.

If this conversation is about a conflict like those of the last several years…where we have ready-to-use allied airfields very, very close by then the Air Tractor is kind of a waste of money. If, however, we are talking about a war with China then the story changes. No gunship or plopter can fly from the P.I. (soon to be our nearest buddy in the area - again) to the Parcels or Spratly Islands - much less make the round trip. Of course, the -22 can refuel in the air so that is a solid advantage but it will still need some air support during the rescue. In a war with China I doubt there will be very many “feet dry” operations over the PRC (Why bother? Defend in-depth and defeat in detail and let their big army enjoy staying at home) so we will need some kind of long-range at-sea rescue system like a seaplane.
 
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taxi1

Well-Known Member
pilot
Helicopters don’t need any runways. Existing FARPs service them.

What capability is this providing the end user that an AH-1Z isn’t? “CAS on floats” isn’t an answer.
Lower parts count, cheaper to buy by order(s) of magnitude, cheaper to operate by order(s) of magnitude, longer endurance (8 hrs), greater range, probably lots quieter for ISR portion of mission, super cool amphib variant can land on water.

Sales pitch-y web page

 
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phrogdriver

More humble than you would understand
pilot
Super Moderator
Lower parts count, cheaper to buy by order(s) of magnitude, cheaper to operate by order(s) of magnitude, longer endurance (8 hrs), greater range, probably lots quieter for ISR portion of mission, super cool amphib variant can land on water.

Sales pitch-y web page


I’m still not really convinced of the use case here. You’ve got a whole system of EABs to keep helos and tiltrotors going. You’ll have UAS for long endurance ISR. A slow FW isn’t any more survivable than a helo.

The one thing it brings is slow, long endurance flight. Is it going to do deep air support against the Chinese?

Would it replace HMLA? If it did, you’ve just gapped their huge mission set. Better to wait a few years for a lm FVL replacement.

There’s a much stronger case for a seaplane or ground effect transport to carry resupply. A float equipped C-130 would be a great interim solution

I think a lot of people underestimate the logistics tail any new type brings. You’re either making a big capital expense on depots and I-level or hiring civilians at huge price tags.
 
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