For a description of the format and data included
in Production Tables, see here.
Produced Variants
P.29 Sidestrand Mk.I
Three seat biplane medium bomber to Specification 9/24. Two 425 h.p. Bristol Jupiter VI powerplants.
P.29a Sidestrand Mk.II
Initial production version. Essentially identical to P.29 Sidestrand
Mk.I.
P.29a Sidestrand
Mk.III
As Mk.II but with revised bomb aimer location to Specification 10/29 (originally 25/27). Two 460 h.p. Bristol
Jupiter VIII or VIIIF powerplants.
P.29a Sidestrand Mk.IIIS
As Mk.II but with two 555 h.p. Bristol Pegasus I.M.3 powerplants driving four bladed propellers.
P.29a Sidestrand Mk.IV
See note 1.
P.29a Sidestrand Mk.V
Initial designation of the P.75 Overstrand.
P.75 Overstrand
Improved
P.29 featuring an enclosed cabin and a powered nose turret. Initial prototype conversionsions were to Specification 29/33,
with production to Specification 23/34. Two 580 h.p. Bristol Pegasus H.M.3 powerplants.
Projected Variants
P.57
General purpose aircraft/medium bomber development of the P.29 for the Irish
Free State. Two Armstrong Siddeley geared Jaguar powerplants.
P.60
Photographic aircraft development of the P.29 for the Royal Canadian Air Force. Two Armstrong Siddeley geared
Jaguar powerplants.
P.61
Streamlined
mail carrier aircraft development of the P.29. Two Bristol Jupiter XFB powerplants.
P.62
Bomber/torpedo
carrier based on the P.61. Two Bristol Jupiter XF or Armstrong Siddeley Panther powerplants
P.62A
Civil transport
version of the P.61.
P.77
Coastal reconnaissance development of the P.75.
P.80 Superstrand
Developed
version of the P.75 featuring a retractable undercarriage and improved nose turret. Two Bristol Pegasus IV powerplants.
2 aircraft
ordered from the Aircraft Department of Boulton and Paul Ltd, Mousehold,
Norwich, Norfolk, to contract 555797/25. Delivered March and June 1926.
J7938 - J7939
Mk.I
2
Both converted to Mk.II in early 1928
(J7939)
Mk.IIIS
(1)
Converted 1931
11
aircraft ordered from the Aircraft Department of Boulton and Paul Ltd,
Mousehold, Norwich, Norfolk, to contract 789943/27. Delivered between
February 1928 and September 1929.
All
ordered as Sidestrand II, but final 5 completed as Sidestrand III
J9176 - J9181
Mk.II
6
J9176 to Mk.III prototype; all but J9180
conv. to Mk.III. J9179 conv. to
Overstrand.
J9185 - J9189
Mk.III
5
J9185, J9186 converted to Overstrand. See
also note 1.
4 aircraft
ordered from the Aircraft Department of Boulton and Paul Ltd, Mousehold,
Norwich, Norfolk, to contract 921961/29.
J9767 - J9770
Mk.III
4
J9770 converted to Overstrand.
3 aircraft
ordered from the Aircraft Department of Boulton and Paul Ltd, Mousehold,
Norwich, Norfolk, to contract 92429/31. Delivered between December 1931 and
January 1932
4 aircraft
converted by the Aircraft Department of Boulton and Paul Ltd, Mousehold,
Norwich, Norfolk, to contract 199464/32. Prototype first flew early 1933.
J9185, J9186,
J9179,
(4)
J9186 prototype (Originally Sidestrand Mk.V)
J9770
19
aircraft ordered from the Aircraft Department of Boulton and Paul Ltd,
Mousehold, Norwich, Norfolk, to contract 337825/34. Delivered between October
1935 and July 1936
K4546 - K4564
19
5 aircraft
ordered from the Aircraft Department of Boulton and Paul Ltd, Mousehold,
Norwich, Norfolk, to contract 414246/35. Delivered between February and April
1937.
In late 1930 J9186 was
experimentally fitted with supercharged 500 h.p. Bristol Jupiter XF powerplants each fitted with a Townend Ring and exhaust
collector. As such it may have been intended to be the Sidestrand Mk.IV.
Production References
Boulton
Paul Aircraft Since 1915, Alec Brew (Putnam, 1993)
