pmccarthy Posted May 30, 2018 Posted May 30, 2018 If I buy a 600kg MTOW LSA with a ballistic parachute, does it get an extra allowance to 620kg or so? I remember this was once the case but don't know if it still holds. Where do I look for the reg?
Bennyboy320 Posted May 30, 2018 Posted May 30, 2018 CAO 95.55 states that light sport mtow is 600 kg for a land based a/c & with floats 650 kg. No extra allowance for a BRS.
Kyle Communications Posted May 30, 2018 Posted May 30, 2018 I asked the same question of the tech manager a couple of years ago...max with or without a chute is 600kg
Marty_d Posted May 30, 2018 Posted May 30, 2018 Is there any change to MTOW under 600kg with the chute? My 701 will have 500kg MTOW. I'm going to need every kilo I can get.
Kyle Communications Posted May 30, 2018 Posted May 30, 2018 If yours is 500kg approved then that would be inc the chute
Downunder Posted May 30, 2018 Posted May 30, 2018 I'm really sure I read multiple reports from the RAA about an extra 20kg if a chute is fitted..... must have changed with one of the latest "manuals"...
Kyle Communications Posted May 30, 2018 Posted May 30, 2018 About 6 years ago I enquired about it as I had fitted the slings etc to my Sav when i built it and I was told then..600kg is 600kg no matter what..the only exception was floats
Fred Posted May 30, 2018 Posted May 30, 2018 ..the only exception was floats That exception alone defies logic on its own - a MTOW for a particular design is simply that i.e. a MTOW. One could argue if extra weight for floats is sound then extra weight for fuel should also apply, considering the landing weight with fuel would not be exceeded. Then naturally the MTOW ceases to be a MTOW. The 600kg MTOW is a class limit as opposed to the safe certifiable weight limits of many LSAs.
Kyle Communications Posted May 30, 2018 Posted May 30, 2018 Thats exactly what I said when they told me
Blueadventures Posted May 31, 2018 Posted May 31, 2018 CAO 95.55 states that light sport mtow is 600 kg for a land based a/c & with floats 650 kg.No extra allowance for a BRS. Does that mean that when operating the aircraft off an air field using wheels the mtow is 600kg and for its operations off water it' mtow is 650kg? (Flight is takeoff on floats and return landing on water.) Cheers
Bennyboy320 Posted May 31, 2018 Posted May 31, 2018 The definition is equipped to land on water, so floats fitted, not an expert on floats but most appear to have wheels fitted for land ops, so in that case you’d be able to operate at 650 kg,
pmccarthy Posted May 31, 2018 Author Posted May 31, 2018 So make fake floats of styrofoam and never go near water. 650kg!
Marty_d Posted May 31, 2018 Posted May 31, 2018 That exception alone defies logic on its own - a MTOW for a particular design is simply that i.e. a MTOW. One could argue if extra weight for floats is sound then extra weight for fuel should also apply, considering the landing weight with fuel would not be exceeded. Then naturally the MTOW ceases to be a MTOW. The 600kg MTOW is a class limit as opposed to the safe certifiable weight limits of many LSAs. I've been told that floats actually create some lift so are fairly neutral in terms of the lift they create balancing out the extra weight, so if that's true it makes sense that they can go over MTOW. However I'm guessing there must be some restriction on maneuvering with floats?
eightyknots Posted June 8, 2018 Posted June 8, 2018 That exception alone defies logic on its own - a MTOW for a particular design is simply that i.e. a MTOW. One could argue if extra weight for floats is sound then extra weight for fuel should also apply, considering the landing weight with fuel would not be exceeded. Then naturally the MTOW ceases to be a MTOW. The 600kg MTOW is a class limit as opposed to the safe certifiable weight limits of many LSAs. I completely agree. If an aircraft is designed for a particular maximum weight, adding floats should not alter the design limit. It is a strange rule. Therefore, staying with the realm of being illogical, if there can be a whopping 50 kg leeway for floats, why not 15 or 20 kg for a ballistic chute?
Marty_d Posted June 8, 2018 Posted June 8, 2018 I completely agree. If an aircraft is designed for a particular maximum weight, adding floats should not alter the design limit. It is a strange rule. Therefore, staying with the realm of being illogical, if there can be a whopping 50 kg leeway for floats, why not 15 or 20 kg for a ballistic chute? Because the 'chute will not provide the 15-20kg of extra lift to balance the extra weight, whereas floats apparently do.
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