Canadian built Tiger Moths came from the factory with brakes. They also have different positioning of the gear legs(angled further forward by shortening what is called the radius rod that angles upward and forward from the gear leg and acts as the front attachment to the fuselage) in order to reduce the likelihood of a noseover during brake use and I suppose just general soft field ops.
Try holding the tail of a DH-82A in the level position. You can balance it on one finger making yourself look like a superhero of strength. Try doing the same on a Canadian Moth. It ain't gonna happen as it takes muscle power to hold it level and it is not enjoyable. Therefore, in the level attitude(at least with power off and no airspeed, it wants to settle on its tail).
One might ask why you would ever want to lift the tail of a Tiger Moth anyways, but the drain in the fuel tank is not at the lowest point when in the three point attitude. Water can accumulate aft of the drain. With the aircraft level, the drain is now at the lowest point. Something you might want to do, if there is any reason to suspect contamination of the fuel in the main tank is to have someone raise the tail and then drain the tank as the water has moved to the new lowest point in the tank. Perhaps rock the wings as well as the corrugations could prevent migration of water to the drain.
I think the Aussies looked into modifying the fuel drain by moving it to the lowest point the fuel tank while in the three point attitude but not much came of it.
As for the idea of an aborted takeoff...not necessary. There is plenty of power to accelerate in a level attitude and then climb out. Abort the takeoff when there is a reason to abort such as when the ability to safely fly away using basic flying skills are no longer available. Brimpton is not an overly long runway. Not sure about obstacles(which can change the decision dynamics) but if the departure path clear, I would go for it while accepting the possibility of a bounce or two while accelerating. Trying to stop on a short runway with no brakes may leave you with few favourable options.
Last edited by JammedStab; 20th Jun 2017 at 01:01.